Network Working Group K. Rehbehn
Request for Comments: 2954 Megisto Systems
Obsoletes: 1604 D. Fowler
Category: Standards Track Syndesis Limited
October 2000
Definitions of Managed Objects
for Frame Relay Service
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2000). All Rights Reserved.
Abstract
This memo defines an extension to the Management Information Base
(MIB) for use with network management protocols in Transmission
Control Protocol/Internet Protocol-based (TCP/IP) internets. In
particular, it defines objects for managing the frame relay service.
This document obsoletes RFC 1604.
Table of Contents
1 The SNMP Management Framework ................................ 2
2 Overview ..................................................... 3
2.1 Scope of MIB ............................................... 3
2.2 Transiting Multiple Frame Relay Networks ................... 5
2.3 Access Control ............................................. 5
2.4 Frame Relay Service MIB Terminology ........................ 6
2.5 Relation to Other MIBs ..................................... 8
2.5.1 System Group ............................................. 8
2.5.2 Interfaces Table (ifTable, ifXtable) ..................... 8
2.5.3 Stack Table for DS1/E1 Environment ....................... 12
2.5.4 Stack Table for V.35 Environments ........................ 14
2.5.5 The Frame Relay/ATM PVC Service Interworking MIB ......... 14
2.6 Textual Convention Change .................................. 15
3 Object Definitions ........................................... 15
3.1 The Frame Relay Service Logical Port ....................... 17
Rehbehn & Fowler Standards Track [Page 1]
RFC 2954 Frame Relay Service MIB October 2000 3.2 Frame Relay Management VC Signaling ........................ 22 3.3 Frame Relay PVC End-Points ................................. 32 3.4 Frame Relay PVC Connections ................................ 45 3.5 Frame Relay Accounting ..................................... 53 3.6 Frame Relay Network Service Notifications .................. 56 3.7 Conformance Information .................................... 57 4 Acknowledgments .............................................. 67 5 References ................................................... 67 6 Security Considerations ...................................... 69 7 Authors' Addresses ........................................... 70 APPENDIX A Update Information .................................. 71 Intellectual Property Rights ................................... 75 Full Copyright Statement ....................................... 76 1. The SNMP Management Framework The SNMP Management Framework presently consists of five major components: o An overall architecture, described in RFC 2571 [1]. o Mechanisms for describing and naming objects and events for the purpose of management. The first version of this Structure of Management Information (SMI) is called SMIv1 and described in STD 16, RFC 1155 [2], STD 16, RFC 1212 [3] and RFC 1215 [4]. The second version, called SMIv2, is described in STD 58, RFC 2578 [5], STD 58, RFC 2579 [6] and STD 58, RFC 2580 [7]. o Message protocols for transferring management information. The first version of the SNMP message protocol is called SNMPv1 and described in STD 15, RFC 1157 [8]. A second version of the SNMP message protocol, which is not an Internet standards track protocol, is called SNMPv2c and described in RFC 1901 [9] and RFC 1906 [10]. The third version of the message protocol is called SNMPv3 and described in RFC 1906 [10], RFC 2572 [11] and RFC 2574 [12]. o Protocol operations for accessing management information. The first set of protocol operations and associated PDU formats is described in STD 15, RFC 1157 [8]. A second set of protocol operations and associated PDU formats is described in RFC 1905 [13]. o A set of fundamental applications described in RFC 2573 [14] and the view-based access control mechanism described in RFC 2575 [15]. Rehbehn & Fowler Standards Track [Page 2]
RFC 2954 Frame Relay Service MIB October 2000 A more detailed introduction to the current SNMP Management Framework can be found in RFC 2570 [16]. Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the mechanisms defined in the SMI. This memo specifies a MIB module that is compliant to the SMIv2. A MIB conforming to the SMIv1 can be produced through the appropriate translations. The resulting translated MIB must be semantically equivalent, except where objects or events are omitted because no translation is possible (use of Counter64). Some machine readable information in SMIv2 will be converted into textual descriptions in SMIv1 during the translation process. However, this loss of machine readable information is not considered to change the semantics of the MIB. 2. Overview These objects are used to manage a frame relay Service. At present, this applies to the following value of the ifType variable in the IF-MIB [26]: frameRelayService (44) This section provides an overview and background of how to use this MIB and other potential MIBs to manage a frame relay service. 2.1. Scope of MIB The Frame Relay Service MIB supports Customer Network Management (CNM) of a frame relay network service. Through the use of this and other related MIBs, a frame relay service customer's NMS can monitor the customer's UNI/NNI logical ports and PVCs. It provides customers with access to configuration data, performance monitoring information, and fault detection for the delivered frame relay service. As an option, an SNMP agent supporting the Frame Relay Service MIB may allow customer-initiated PVC management operations such as creation, deletion, modification, activation, and deactivation of individual PVCs. However, internal aspects of the network (e.g., switching elements, line cards, and network routing tables) are beyond the scope of this MIB. The Frame Relay Service MIB models all interfaces and PVCs delivered by a frame relay service within a single virtual SNMP system for the purpose of comprehensively representing the customer's frame relay service. The customer's interfaces and PVCs may physically exist on one or more devices within the network topology. An SNMP agent Rehbehn & Fowler Standards Track [Page 3]
RFC 2954 Frame Relay Service MIB October 2000 providing support for the Frame Relay Service MIB as well as other appropriate MIBs to model a single virtual frame relay network service is referred to as a Frame Relay Service (FRS) agent. Internal communication mechanisms between the FRS agent and individual devices within the frame relay network delivering the service are implementation specific and beyond the scope of this MIB. The customer's NMS will typically access the SNMP agent implementing the Frame Relay Service MIB over a frame relay permanent virtual connection (PVC). SNMP access over a frame relay PVC is achieved through the use of SNMP over UDP over IP encapsulated in Frame Relay according to STD 55, RFC2427 and ITU X.36 Annex D [23]. Alternate access mechanisms and SNMP agent implementations are possible. This MIB will NOT be implemented on user equipment (e.g., DTE). Such devices are managed using the Frame Relay DTE MIB (RFC2115[18]). However, concentrators may use the Frame Relay Service MIB instead of the Frame Relay DTE MIB. This MIB does not define managed objects for the physical layer. Existing physical layer MIBs (e.g., DS1 MIB) and Interface MIB will be used as needed in FRS Agent implementations. This MIB supports frame relay PVCs. This MIB may be extended at a later time to handle frame relay SVCs. A switch implementation may support this MIB for the purpose of configuration and control of the frame relay service beyond the scope of traditional customer network management applications. A number of objects (e.g. frLportTypeAdmin) support administrative actions that impact the operation of frame relay switch equipment in the network. This is reflected in the differences between the two MIB compliance modules: o the frame relay service compliance module (frnetservCompliance), and o the frame relay switch compliance module (frnetSwitchCompliance). The frame relay service compliance module does not support the administrative control objects used for switch management. Rehbehn & Fowler Standards Track [Page 4]
RFC 2954 Frame Relay Service MIB October 2000 2.2. Transiting Multiple Frame Relay Networks This MIB is only used to manage a single frame relay service offering from one network service provider. Therefore, if a customer PVC traverses multiple networks, then the customer must poll a different FRS agent within each frame relay network to retrieve the end-to-end view of service. Figure 1 illustrates a customer ("User B") NMS accessing FRS agents in three different frame relay networks (I, J, and K). +-------------------------------------+ | Customer Network Management Station | | (SNMP based) | +-------------------------------------+ ^ ^ ^ | | | | | | UNI | NNI | NNI | UNI | ^ | ^ | ^ | +-----------+ | +-----------+ | +-----------+ | | | | | | | | | | | Originating | | FR | | | FR | | | FR | |Terminating +--------+ | | Network I | | | Network J | | | Network K | | +--------+ | | | | | | | | | | | | | | | |---| |---| |---| |---| User B | | | | | | | | | | | | | | | | //////////////////////////////////////////////////////////// | | | | | | | | | | | | | | | +--------+ | +-----------+ | +-----------+ | +-----------+ | +--------+ | | | | | | | | | PVC Segment 1 | PVC Segment 2 | PVC Segment 3 | |<------------->|<------------->|<------------->| | | | Multi-network PVC | |<--------------------------------------------->| | NNI = Network-to Network Interface | UNI = User-to-Network Interface Figure 1, Multi-network PVC 2.3. Access Control A frame relay network is shared amongst many frame relay subscribers. Each subscriber will only have access to their information (e.g., information with respect to their interfaces and PVCs). The FRS agent should provide instance level granularity for MIB views. Rehbehn & Fowler Standards Track [Page 5]
RFC 2954 Frame Relay Service MIB October 2000 2.4. Frame Relay Service MIB Terminology Access Channel - An access channel generically refers to the DS1/E1 or DS3/E3-based UNI access channel or NNI access channel across which frame relay data transits. An access channel is the access pathway for a single stream of user data. Within a given DS1 line, an access channel can denote any one of the following: o Unchannelized DS1 - the entire DS1 line is considered an access channel. Each access channel is comprised of 24 DS0 time slots. o Channelized DS1 - an access channel is any one of 24 channels. Each access channel is comprised of a single DS0 time slot. o Fractional DS1 - an access channel is a grouping of NxDS0 time slots (NX56/64 Kbps, where N = 1-23 DS0 Time slots per Fractional DS1 Access Channel) that may be assigned in consecutive or non-consecutive order. Within a given E1 line, a channel can denote any one of the following: o Unchannelized E1 - the entire E1 line is considered a single access channel. Each access channel is comprised of 31 E1 time slots. o Channelized E1 - an access channel is any one of 31 channels. Each access channel is comprised of a single E1 time slot. o Fractional E1 - an access channel is a grouping of N E1 time slots (NX64 Kbps, where N = 1-30 E1 time slots per FE1 access channel) that may be assigned in consecutive or non-consecutive order. Within a given unformatted line, the entire unformatted line is considered an access channel. Examples include RS-232, V.35, V.36 and X.21 (non-switched), and unframed E1 (G.703 without G.704). Access Rate - The data rate of the access channel, expressed in bits/second. The speed of the user access channel determines how rapidly the end user can inject data into the network. Bc - The Committed Burst Size (Bc) is the maximum amount of subscriber data (expressed in bits) that the network agrees to transfer, under normal conditions, during a time interval Tc. Rehbehn & Fowler Standards Track [Page 6]
RFC 2954 Frame Relay Service MIB October 2000 Be - The Excess Burst Size (Be) is the maximum amount of subscriber data (expressed in bits) in excess of Bc that the network will attempt to deliver during the time interval Tc. This data (Be) is delivered in general with a lower probability than Bc. CIR - The Committed Information Rate (CIR) is the subscriber data rate (expressed in bits/second) that the network commits to deliver under normal network conditions. CIR is averaged over the time interval Tc (CIR = Bc/Tc). DLCI - Data Link Connection Identifier Logical Port - This term is used to model the frame relay "interface" on a device. NNI - Network to Network Interface Permanent Virtual Connection (PVC) - A virtual connection that has its end-points and bearer capabilities defined at subscription time. Time slot (E1) - An octet within the 256-bit information field in each E1 frame is defined as a time slot. Time slots are position sensitive within the 256-bit information field. Fractional E1 service is provided in contiguous or non-contiguous time slot increments. Time slot (DS0) - An octet within the 192-bit information field in each DS1 frame is defined as a time slot. Time slots are position sensitive within the 192-bit information field. Fractional DS1 service is provided in contiguous or non-contiguous time slot increments. UNI - User to Network Interface N391 - Full status (status of all PVCs) polling counter N392 - Error threshold N393 - Monitored events count T391 - Link integrity verification polling timer T392 - Polling verification timer nT3 - Status enquiry timer nN3 - Maximum status enquiry counter Rehbehn & Fowler Standards Track [Page 7]
RFC 2954 Frame Relay Service MIB October 2000 2.5. Relation to Other MIBs 2.5.1. System Group Use the System Group of the SNMPv2-MIB [27] to describe the Frame Relay Service (FRS) agent. The FRS agent may be monitoring many frame relay devices in one network. The System Group does not describe frame relay devices monitored by the FRS agent. sysDescr: ASCII string describing the FRS agent. Can be up to 255 characters long. This field is generally used to indicate the network providers identification and type of service offered. sysObjectID: Unique OBJECT IDENTIFIER (OID) for the FRS agent. sysUpTime: Clock in the FRS agent; TimeTicks in 1/100s of a second. Elapsed type since the FRS agent came on line. sysContact: Contact for the FRS agent. ASCII string of up to 255 characters. sysName: Domain name of the FRS agent, for example, acme.com sysLocation: Location of the FRS agent. ASCII string of up to 255 characters. sysServices: Services of the managed device. The value "2", which implies that the frame relay network is providing a subnetwork level service, is recommended. 2.5.2. Interfaces Table (ifTable, ifXtable) This specifies how the Interfaces Group defined in the IF MIB [26] shall be used for the management of frame relay based interfaces, and in conjunction with the Frame Relay Service MIB module. This memo assumes the interpretation of the evolution of the Interfaces group to be in accordance with: "The interfaces table (ifTable) contains information on the managed resource's interfaces. Each sub-layer below the internetwork layer of a network interface is considered an interface." Thus, the ifTable allows the following frame relay-based interfaces to be represented as table entries: Rehbehn & Fowler Standards Track [Page 8]
RFC 2954 Frame Relay Service MIB October 2000 - Frame relay interfaces in equipment (e.g., switches, routers or networks) supporting frame relay. This level is concerned with generic frame counts and not with individual virtual connections. In accordance with the guidelines of ifTable, frame counts per virtual connection are not covered by ifTable, and are considered interface specific and covered in the Frame Relay Service MIB module. In order to interrelate the ifEntries properly, the Interfaces Stack Group shall be supported. Some specific interpretations of ifTable for frame relay follow. Object Use for the generic Frame Relay layer ====== ============================================= ifIndex Each frame relay port is represented by an ifEntry. ifDescr Description of the frame relay interface. ASCII string describing the UNI/NNI logical port. Can be up to 255 characters long. ifType The value allocated for Frame Relay Service is equal to 44. ifMtu Set to maximum frame size in octets for this frame relay logical port. ifSpeed Peak bandwidth in bits per second available for use. This could be the speed of the logical port and not the access rate. Actual user information transfer rate (i.e., access rate) of the UNI or NNI logical port in bits per second (this is not the clocking speed). For example, it is 1,536,000 bits per second for a DS1-based UNI/NNI logical port and 1,984,000 bits per second for an E1-based UNI/NNI logical port. ifPhysAddress The primary address for this logical port assigned by the frame relay interface provider. An octet string of zero length if no address is used for this logical port. ifAdminStatus The desired administrative status of the frame relay logical port. Rehbehn & Fowler Standards Track [Page 9]
RFC 2954 Frame Relay Service MIB October 2000 ifOperStatus The current operational status of the Frame Relay UNI or NNI logical port. ifLastChange The value of sysUptime at the last re-initialization of the logical port. The value of sysUpTime at the time the logical port entered its current operational state. If the current state was entered prior to the last re-initialization of the local network management subsystem, then this object contains a zero value. ifInOctets The number of received octets. This counter only counts octets from the beginning of the frame relay header field to the end of user data. ifInUcastPkts The number of received unerrored, unicast frames. ifInDiscards The number of received frames discarded. Specifically, frames discarded due to ingress buffer congestion and traffic policing. ifInErrors The number of received frames that are discarded because of an error. Specifically, frames that are too long or too short, frames that are not a multiple of 8 bits in length, frames with an invalid or unrecognized DLCI, frames with an abort sequence, frames with improper flag delimitation, and frame that fail FCS. ifInUnknownProtos The number of packets discarded because of an unknown or unsupported protocol. For Frame Relay Service interfaces, this counter will always be zero. ifOutOctets The number of transmitted octets. This counter only counts octets from the beginning of the frame relay header field to the end of user data. ifOutUcastpkts The number of unerrored, unicast frames sent. ifOutDiscards The number of frames discarded in the egress direction. Possible reasons are as follows: policing, congestion. Rehbehn & Fowler Standards Track [Page 10]
RFC 2954 Frame Relay Service MIB October 2000 ifOutErrors The number of frames discarded in the egress direction because of an error. Specifically, frames that are aborted due to a transmitter underrun. ifName This variable is not applicable for Frame Relay Service interfaces, therefore, this variable contains a zero-length string. ifInMulticastPkts The number of received unerrored, multicast frames. ifInBroadcastPkts This variable is not applicable for Frame Relay Service interfaces, therefore, this counter is always zero. ifOutMulticastPkts The number of sent unerrored, multicast frames. ifOutBroadcastPkts This variable is not applicable for Frame Relay Service interfaces, therefore, this counter is always zero. ifHCInOctets Only used for DS3-based (and greater) Frame Relay logical ports. The number of received octets. This counter only counts octets from the beginning of the frame relay header field to the end of user data. ifHCOutOctets Only used for DS3-based (and greater) Frame Relay logical ports. The number of transmitted octets. This counter only counts octets from the beginning of the frame relay header field to the end of user data. ifLinkUpDownTrapEnable Set to true(1). It is recommended that the underlying physical layer notifications be disabled since both are not required. Notifications are enabled at the frame relay service layer specifically because PVC notifications are not to be sent if the frame relay interface fails. Without a linkUp/linkDown notification, the management station would receive no notification of the failure. Rehbehn & Fowler Standards Track [Page 11]
RFC 2954 Frame Relay Service MIB October 2000 ifHighSpeed Set to the user data rate of the frame relay logical port in millions of bits per second. If the user data rate is less than 1 Mbps, then this value is zero. ifPromiscuousMode Set to false(2). ifConnectorPresent Set to false(2). Frame relay network service interfaces support the Interface Stack Group. Frame relay network service interfaces do not support any other groups or objects in the Interfaces group of the IF MIB. 2.5.3. Stack Table for DS1/E1 Environment This section describes by example how to use ifStackTable to represent the relationship of frame relay service to ds0 and ds0Bundles with ds1 interfaces [20]. Example: A frame relay service is being carried on 4 ds0s of a ds1. +---------------------+ | Frame Relay Service | +---------------------+ | +---------------------+ | ds0Bundle | +---------------------+ | | | | +---+ +---+ +---+ +---+ |ds0| |ds0| |ds0| |ds0| +---+ +---+ +---+ +---+ | | | | +---------------------+ | ds1 | +---------------------+ The assignment of the index values could for example be: ifIndex Description 1 FrameRelayService (type 44) 2 ds0Bundle (type 82) 3 ds0 #1 (type 81) 4 ds0 #2 (type 81) 5 ds0 #3 (type 81) 6 ds0 #4 (type 81) 7 ds1 (type 18) Rehbehn & Fowler Standards Track [Page 12]
RFC 2954 Frame Relay Service MIB October 2000 The ifStackTable is then used to show the relationships between the various interfaces. ifStackTable Entries HigherLayer LowerLayer 0 1 1 2 2 3 2 4 2 5 2 6 3 7 4 7 5 7 6 7 7 0 In the case where the frame relay service is using a single ds0, then the ds0Bundle is not required. +---------------------+ | Frame Relay Service | +---------------------+ | +---+ |ds0| +---+ | +---------------------+ | ds1 | +---------------------+ The assignment of the index values could for example be: ifIndex Description 1 FrameRelayService (type 44) 2 ds0 (type 81) 3 ds1 (type 18) The ifStackTable is then used to show the relationships between the various interfaces. Rehbehn & Fowler Standards Track [Page 13]
RFC 2954 Frame Relay Service MIB October 2000 ifStackTable Entries HigherLayer LowerLayer 0 1 1 2 2 3 3 0 2.5.4. Stack Table for V.35 Environments This section describes by example how to use ifStackTable to represent the relationship of frame relay service with V.35 interfaces. +---------------------+ | Frame Relay Service | +---------------------+ | +---------------------+ | v35 | +---------------------+ An example of index values in this case could be: ifIndex Description 1 FrameRelayService (type 44) 2 v35 (type 33) Note type 33 (RS232-like MIB) is used instead of type 45 (V.35). V35 does not pertain to this environment. The ifStackTable is then used to show the relationships between the various interfaces. ifStackTable Entries HigherLayer LowerLayer 0 1 1 2 2 0 2.5.5. The Frame Relay/ATM PVC Service Interworking MIB Connections between two frame relay endpoints are represented with an entry in the frPVCConnectTable of this MIB. Both endpoints are represented with rows in the frPVCEndptTable. The frPVCEndptConnectIdentifier object of each endpoint points to the frPVCConnectTable cross-connect table row for the connection. Rehbehn & Fowler Standards Track [Page 14]
RFC 2954 Frame Relay Service MIB October 2000 In contrast, a connection that spans frame relay and ATM endpoints is represented with an entry in the frAtmIwfConnectionTable of the FR/ATM PVC Service Interworking MIB defined in [28]. In the case of an inter-worked connection, the frPVCEndptConnectIdentifier object is set to zero. Instead, the frPVCEndptAtmIwfConnIndex object is set to the index of the FR/ATM IWF cross-connect table row. The frame relay PVC cross-connect table (frPVCConnectTable) does not contain an entry for the FR/ATM inter-worked connection. 2.6. Textual Convention Change Version 1 of the Frame Relay Service MIB contains MIB objects defined with the DisplayString textual convention. In version 2 of this MIB, the syntax for these objects has been updated to use the (now preferred) SnmpAdminString textual convention. The new TC provides support for a greater variety of international character sets. The working group realizes that this change is not strictly supported by SMIv2. In our judgment, the alternative of deprecating the old objects and defining new objects would have a more adverse impact on backward compatibility and interoperability, given the particular semantics of these objects. 3. Object Definitions FRNETSERV-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, transmission, Counter32, Integer32 FROM SNMPv2-SMI TimeStamp, RowStatus FROM SNMPv2-TC MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP FROM SNMPv2-CONF InterfaceIndex, ifIndex FROM IF-MIB SnmpAdminString FROM SNMP-FRAMEWORK-MIB; frnetservMIB MODULE-IDENTITY LAST-UPDATED "200009280000Z" -- September 28, 2000 ORGANIZATION "IETF Frame Relay Service MIB Working Group" CONTACT-INFO "WG Charter: http://www.ietf.org/html.charters/frnetmib-charter WG-email: frnetmib@sunroof.eng.sun.com Rehbehn & Fowler Standards Track [Page 15]
RFC 2954 Frame Relay Service MIB October 2000 Subscribe: frnetmib-request@sunroof.eng.sun.com Email Archive: ftp://ftp.ietf.org/ietf-mail-archive/frnetmib Chair: Andy Malis Vivace Networks, Inc. Email: Andy.Malis@vivacenetworks.com WG editor: Kenneth Rehbehn Megisto Systems, Inc. Email: krehbehn@megisto.com Co-author: David Fowler Syndesis Limited, EMail: fowler@syndesis.com" DESCRIPTION "The MIB module to describe generic objects for Frame Relay Network Service." -- -- Revision History -- REVISION "200009280000Z" DESCRIPTION "Published as RFC 2954. The major new features of this revision include: o Support for read-write capability to provision switch components providing service, o Support for cross-connection via a frame relay to ATM service interworking function, o Support for frame relay fragmentation, o Additional frame counters to track frame loss. Refer to Appendix A for a comprehensive list of changes since RFC 1604." REVISION "199311161200Z" DESCRIPTION "Published as RFC 1604." ::= { transmission 44 } Rehbehn & Fowler Standards Track [Page 16]
RFC 2954 Frame Relay Service MIB October 2000 frnetservObjects OBJECT IDENTIFIER ::= { frnetservMIB 1 } frnetservTraps OBJECT IDENTIFIER ::= { frnetservMIB 2 } frnetservTrapsPrefix OBJECT IDENTIFIER ::= { frnetservTraps 0 } -- -- The Frame Relay Service Logical Port -- frLportTable OBJECT-TYPE SYNTAX SEQUENCE OF FrLportEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The Frame Relay Logical Port Information table is an interface-specific addendum to the generic ifTable of the Interface MIB." ::= { frnetservObjects 1 } frLportEntry OBJECT-TYPE SYNTAX FrLportEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in the Frame Relay Logical Port Information table." INDEX { ifIndex } ::= { frLportTable 1 } FrLportEntry ::= SEQUENCE { frLportNumPlan INTEGER, frLportContact SnmpAdminString, frLportLocation SnmpAdminString, frLportType INTEGER, frLportAddrDLCILen INTEGER, frLportVCSigProtocol INTEGER, frLportVCSigPointer OBJECT IDENTIFIER, frLportDLCIIndexValue Integer32, frLportTypeAdmin INTEGER, frLportVCSigProtocolAdmin INTEGER, frLportFragControl INTEGER, frLportFragSize Integer32 } Rehbehn & Fowler Standards Track [Page 17]
RFC 2954 Frame Relay Service MIB October 2000 frLportNumPlan OBJECT-TYPE SYNTAX INTEGER { other(1), e164(2), x121(3), none(4) } MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the network address numbering plan for this UNI/NNI logical port. The network address is the object ifPhysAddress. The value none(4) implies that there is no ifPhysAddress. The FRS agent will return an octet string of zero length for ifPhysAddress. The value other(1) means that an address has been assigned to this interface, but the numbering plan is not enumerated here." REFERENCE "E.164 [29] X.121 [30]" ::= { frLportEntry 1 } frLportContact OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the network contact for this UNI/NNI logical port." ::= { frLportEntry 2 } frLportLocation OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the frame relay network location for this UNI/NNI logical port." ::= { frLportEntry 3 } frLportType OBJECT-TYPE SYNTAX INTEGER { uni(1), nni(2) } MAX-ACCESS read-only Rehbehn & Fowler Standards Track [Page 18]
RFC 2954 Frame Relay Service MIB October 2000 STATUS current DESCRIPTION "The value of this object identifies the type of network interface for this logical port." ::= { frLportEntry 4 } frLportAddrDLCILen OBJECT-TYPE SYNTAX INTEGER { twoOctets10Bits(1), threeOctets10Bits(2), threeOctets16Bits(3), fourOctets17Bits(4), fourOctets23Bits(5) } UNITS "Octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the Q.922 Address field length and DLCI length for this UNI/NNI logical port." REFERENCE "Q.922 [25]" ::= { frLportEntry 5 } frLportVCSigProtocol OBJECT-TYPE SYNTAX INTEGER { none(1), lmi(2), ansiT1617D(3), ansiT1617B(4), ccittQ933A(5) } MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the Local In-Channel Signaling Protocol that is used for this frame relay UNI/NNI logical port. none(1): Interface does not use a PVC signaling protocol lmi(2): Interface operates the Stratacom/ Nortel/DEC Local Management Interface Specification protocol ansiT1617D(3): Interface operates the ANSI T1.617 Annex D PVC status protocol Rehbehn & Fowler Standards Track [Page 19]
RFC 2954 Frame Relay Service MIB October 2000 ansiT1617B(4): Interface operates the ANSI T1.617 Annex B procedures ccittQ933A(5): Interface operates the ITU Q.933 Annex A PVC status protocol" REFERENCE "LMI [24] T1.617 Annex D [17], Q.933 Annex A [22]" ::= { frLportEntry 6 } frLportVCSigPointer OBJECT-TYPE SYNTAX OBJECT IDENTIFIER MAX-ACCESS read-only STATUS deprecated DESCRIPTION "The value of this object is used as a pointer to the table that contains the Local In-Channel Signaling Protocol parameters and errors for this UNI/NNI logical port. This object has been deprecated to reflect the fact that the local in-channel signaling parameters are accessed from a single table (frMgtVCSigTable) that includes parameters for all possible signaling protocols. Early design anticipated multiple tables, one for each signaling protocol." ::= { frLportEntry 7 } frLportDLCIIndexValue OBJECT-TYPE SYNTAX Integer32 (16..4194303) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains a hint to be used for frPVCEndptDLCIIndex when creating entries in the frPVCEndptTable. The SYNTAX of this object matches the SYNTAX of the frPVCEndptDLCIIndex - an object that is restricted to legal Q.922 DLCI values for the size of the address field. The value 0 indicates that no unassigned entries are available. To obtain the frPVCEndptDLCIIndex value for a new entry, the manager issues a management protocol retrieval operation to obtain the current value of Rehbehn & Fowler Standards Track [Page 20]
RFC 2954 Frame Relay Service MIB October 2000 this object. After each retrieval, the agent must modify the value to the next unassigned index to prevent assignment of the same value to multiple management systems. A management system should repeat the read to obtain a new value should an attempt to create the new row using the previously returned hint fail." REFERENCE "Q.922 [25]" ::= { frLportEntry 8 } frLportTypeAdmin OBJECT-TYPE SYNTAX INTEGER { uni(1), nni(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object desired identifies the type of network interface for this logical port." ::= { frLportEntry 9 } frLportVCSigProtocolAdmin OBJECT-TYPE SYNTAX INTEGER { none(1), lmi(2), ansiT1617D(3), ansiT1617B(4), ccittQ933A(5) } MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object identifies the desired Local In-Channel Signaling Protocol that is used for this frame relay UNI/NNI logical port. This value must be made the active protocol as soon as possible on the device. Refer to frLportVCSigProtocol for a description of each signaling protocol choices." REFERENCE "LMI [24] T1.617 Annex D [17], Q.933 Annex A [22]" ::= { frLportEntry 10 } frLportFragControl OBJECT-TYPE Rehbehn & Fowler Standards Track [Page 21]
RFC 2954 Frame Relay Service MIB October 2000 SYNTAX INTEGER { on(1), off(2) } MAX-ACCESS read-write STATUS current DESCRIPTION "This object controls the transmission and reception of fragmentation frames for this UNI or NNI interface. on(1) Frames are fragmented using the interface fragmentation format Note: The customer side of the interface must also be configured to fragment frames. off(2) Frames are not fragmented using the interface fragmentation format." REFERENCE "FRF.12 [21]" DEFVAL { off } ::= { frLportEntry 11 } frLportFragSize OBJECT-TYPE SYNTAX Integer32 (0..4096) UNITS "Octets" MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object is the size in octets of the maximum size of each fragment to be sent when fragmenting. This object is only used by the fragmentation transmitter, and the two sides of the interface may differ. The fragment size includes the octets for the frame relay header, the UI octet, the NLPID, the fragmentation header, and the fragment payload. If frLportFragControl is set to off, this value should be zero." REFERENCE "FRF.12 [21]" DEFVAL { 0 } ::= { frLportEntry 12 } -- -- Frame Relay Management VC Signaling -- frMgtVCSigTable OBJECT-TYPE SYNTAX SEQUENCE OF FrMgtVCSigEntry Rehbehn & Fowler Standards Track [Page 22]
RFC 2954 Frame Relay Service MIB October 2000 MAX-ACCESS not-accessible STATUS current DESCRIPTION "The Frame Relay Management VC Signaling Parameters and Errors table." ::= { frnetservObjects 2 } frMgtVCSigEntry OBJECT-TYPE SYNTAX FrMgtVCSigEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in the Frame Relay Management VC Signaling Parameters Errors table." INDEX { ifIndex } ::= { frMgtVCSigTable 1 } FrMgtVCSigEntry ::= SEQUENCE { frMgtVCSigProced INTEGER, frMgtVCSigUserN391 INTEGER, frMgtVCSigUserN392 INTEGER, frMgtVCSigUserN393 INTEGER, frMgtVCSigUserT391 INTEGER, frMgtVCSigNetN392 INTEGER, frMgtVCSigNetN393 INTEGER, frMgtVCSigNetT392 INTEGER, frMgtVCSigNetnN4 INTEGER, frMgtVCSigNetnT3 INTEGER, frMgtVCSigUserLinkRelErrors Counter32, frMgtVCSigUserProtErrors Counter32, frMgtVCSigUserChanInactive Counter32, frMgtVCSigNetLinkRelErrors Counter32, frMgtVCSigNetProtErrors Counter32, frMgtVCSigNetChanInactive Counter32, frMgtVCSigProcedAdmin INTEGER, frMgtVCSigUserN391Admin INTEGER, frMgtVCSigUserN392Admin INTEGER, frMgtVCSigUserN393Admin INTEGER, frMgtVCSigUserT391Admin INTEGER, frMgtVCSigNetN392Admin INTEGER, frMgtVCSigNetN393Admin INTEGER, frMgtVCSigNetT392Admin INTEGER, frMgtVCSigNetnT3Admin INTEGER } frMgtVCSigProced OBJECT-TYPE SYNTAX INTEGER { Rehbehn & Fowler Standards Track [Page 23]
RFC 2954 Frame Relay Service MIB October 2000 u2nnet(1), bidirect(2), u2nuser(3) } MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the local in-channel signaling procedural role that is used for this UNI/NNI logical port. Bidirectional procedures implies that both user-side and network-side procedural roles are used. u2nnet(1) Logical port operates user to network procedure in the role of the network side bidirect(2) Logical port operates the bidirectional procedure (both user and network side roles) u2nuser(3) Logical port operates user to network procedure in the role of the user side" REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17]" ::= { frMgtVCSigEntry 1 } frMgtVCSigUserN391 OBJECT-TYPE SYNTAX INTEGER (1..255) UNITS "Polls" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the User-side N391 full status polling cycle value for this UNI/NNI logical port. If the logical port is not performing user-side (bidirectional) procedures, then this object is not instantiated and an attempt to read will result in the noSuchInstance exception response." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17]" DEFVAL { 6 } ::= { frMgtVCSigEntry 2 } frMgtVCSigUserN392 OBJECT-TYPE SYNTAX INTEGER (1..10) Rehbehn & Fowler Standards Track [Page 24]
RFC 2954 Frame Relay Service MIB October 2000 UNITS "Events" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the User-side N392 error threshold value for this UNI/NNI logical port. If the logical port is not performing user-side (bidirectional) procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17]" DEFVAL { 3 } ::= { frMgtVCSigEntry 3 } frMgtVCSigUserN393 OBJECT-TYPE SYNTAX INTEGER (1..10) UNITS "Events" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the User-side N393 monitored events count value for this UNI/NNI logical port. If the logical port is not performing user-side (bidirectional) procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17]" DEFVAL { 4 } ::= { frMgtVCSigEntry 4 } frMgtVCSigUserT391 OBJECT-TYPE SYNTAX INTEGER (5..30) UNITS "Seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the User-side T391 link integrity verification polling timer value for this UNI/NNI logical port. If the logical port is not performing user-side procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17]" DEFVAL { 10 } ::= { frMgtVCSigEntry 5 } frMgtVCSigNetN392 OBJECT-TYPE SYNTAX INTEGER (1..10) Rehbehn & Fowler Standards Track [Page 25]
RFC 2954 Frame Relay Service MIB October 2000 UNITS "Events" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the Network- side N392 error threshold value (nN2 for LMI) for this UNI/NNI logical port. If the logical port is not performing network-side procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17], LMI [24]" DEFVAL { 3 } ::= { frMgtVCSigEntry 6 } frMgtVCSigNetN393 OBJECT-TYPE SYNTAX INTEGER (1..10) UNITS "Events" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the Network- side N393 monitored events count value (nN3 for LMI) for this UNI/NNI logical port. If the logical port is not performing network-side procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17], LMI [24]" DEFVAL { 4 } ::= { frMgtVCSigEntry 7 } frMgtVCSigNetT392 OBJECT-TYPE SYNTAX INTEGER (5..30) UNITS "Seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the Network- side T392 polling verification timer value (nT2 for LMI) for this UNI/NNI logical port. If the logical port is not performing network-side procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17], LMI [24]" DEFVAL { 15 } ::= { frMgtVCSigEntry 8 } Rehbehn & Fowler Standards Track [Page 26]
RFC 2954 Frame Relay Service MIB October 2000 frMgtVCSigNetnN4 OBJECT-TYPE SYNTAX INTEGER (5..5) UNITS "Events" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the Network- side nN4 maximum status enquires received value for this UNI/NNI logical port. If the logical port is not performing network-side procedures or is not performing LMI procedures, then this object is not instantiated. This object applies only to LMI and always has a value of 5." REFERENCE "LMI [24]" ::= { frMgtVCSigEntry 9 } frMgtVCSigNetnT3 OBJECT-TYPE SYNTAX INTEGER (5 | 10 | 15 | 20 | 25 | 30) UNITS "Seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the Network- side nT3 timer (for nN4 status enquires received) value for this UNI/NNI logical port. If the logical port is not performing network-side procedures or is not performing LMI procedures, then this object is not instantiated. This object applies only to LMI." REFERENCE "LMI [24]" DEFVAL { 20 } ::= { frMgtVCSigEntry 10 } frMgtVCSigUserLinkRelErrors OBJECT-TYPE SYNTAX Counter32 UNITS "Errors" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of user-side local in-channel signaling link reliability errors (i.e., non- receipt of Status/Status Enquiry messages or invalid sequence numbers in a Link Integrity Verification Information Element) for this UNI/NNI logical port. If the logical port is not Rehbehn & Fowler Standards Track [Page 27]
RFC 2954 Frame Relay Service MIB October 2000 performing user-side procedures, then this object is not instantiated." ::= { frMgtVCSigEntry 11 } frMgtVCSigUserProtErrors OBJECT-TYPE SYNTAX Counter32 UNITS "Errors" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of user-side local in-channel signaling protocol errors (i.e., protocol discriminator, unnumbered information, message type, call reference, and mandatory information element errors) for this UNI/NNI logical port. If the logical port is not performing user-side procedures, then this object is not instantiated." ::= { frMgtVCSigEntry 12 } frMgtVCSigUserChanInactive OBJECT-TYPE SYNTAX Counter32 UNITS "Events" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times the user-side channel was declared inactive (i.e., N392 errors in N393 events) for this UNI/NNI logical port. If the logical port is not performing user-side procedures, then this object is not instantiated." ::= { frMgtVCSigEntry 13 } frMgtVCSigNetLinkRelErrors OBJECT-TYPE SYNTAX Counter32 UNITS "Errors" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of network-side local in-channel signaling link reliability errors (i.e., non- receipt of Status/Status Enquiry messages or invalid sequence numbers in a Link Integrity Verification Information Element) for this UNI/NNI logical port." ::= { frMgtVCSigEntry 14 } frMgtVCSigNetProtErrors OBJECT-TYPE SYNTAX Counter32 Rehbehn & Fowler Standards Track [Page 28]
RFC 2954 Frame Relay Service MIB October 2000 UNITS "Errors" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of network-side local in-channel signaling protocol errors (i.e., protocol discriminator, message type, call reference, and mandatory information element errors) for this UNI/NNI logical port." ::= { frMgtVCSigEntry 15 } frMgtVCSigNetChanInactive OBJECT-TYPE SYNTAX Counter32 UNITS "Events" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times the network-side channel was declared inactive (i.e., N392 errors in N393 events) for this UNI/NNI logical port." ::= { frMgtVCSigEntry 16 } frMgtVCSigProcedAdmin OBJECT-TYPE SYNTAX INTEGER { u2nnet(1), bidirect(2), u2nuser(3) } MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object identifies the local in-channel signaling procedural role that is used for this UNI/NNI logical port. Bidirectional procedures implies that both user-side and network-side procedural roles are used. u2nnet(1) Logical port operates user to network procedure in the role of the network side bidirect(2) Logical port operates the bidirectional procedure (both user and network side roles) u2nuser(3) Logical port operates user to network procedure in the role of the user side" Rehbehn & Fowler Standards Track [Page 29]
RFC 2954 Frame Relay Service MIB October 2000 REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17]" DEFVAL { u2nnet } ::= { frMgtVCSigEntry 17 } frMgtVCSigUserN391Admin OBJECT-TYPE SYNTAX INTEGER (1..255) UNITS "Polls" MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object identifies the desired User-side N391 full status polling cycle value for this UNI/NNI logical port. If the logical port is not performing user-side (bidirectional) procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17]" ::= { frMgtVCSigEntry 18 } frMgtVCSigUserN392Admin OBJECT-TYPE SYNTAX INTEGER (1..10) UNITS "Events" MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object identifies the desired User-side N392 error threshold value for this UNI/NNI logical port. If the logical port is not performing user-side (bidirectional) procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17]" ::= { frMgtVCSigEntry 19 } frMgtVCSigUserN393Admin OBJECT-TYPE SYNTAX INTEGER (1..10) UNITS "Events" MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object identifies the desired User-side N393 monitored events count value for this UNI/NNI logical port. If the logical port is not performing user-side (bidirectional) procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17]" Rehbehn & Fowler Standards Track [Page 30]
RFC 2954 Frame Relay Service MIB October 2000 ::= { frMgtVCSigEntry 20 } frMgtVCSigUserT391Admin OBJECT-TYPE SYNTAX INTEGER (5..30) UNITS "Seconds" MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object identifies the desired User-side T391 link integrity verification polling timer value for this UNI/NNI logical port. If the logical port is not performing user-side procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17]" ::= { frMgtVCSigEntry 21 } frMgtVCSigNetN392Admin OBJECT-TYPE SYNTAX INTEGER (1..10) UNITS "Events" MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object identifies the desired Network-side N392 error threshold value (nN2 for LMI) for this UNI/NNI logical port. If the logical port is not performing network-side procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17], LMI [24]" ::= { frMgtVCSigEntry 22 } frMgtVCSigNetN393Admin OBJECT-TYPE SYNTAX INTEGER (1..10) UNITS "Events" MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object identifies the desired Network-side N393 monitored events count value (nN3 for LMI) for this UNI/NNI logical port. If the logical port is not performing network-side procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17], LMI [24]" ::= { frMgtVCSigEntry 23 } Rehbehn & Fowler Standards Track [Page 31]
RFC 2954 Frame Relay Service MIB October 2000 frMgtVCSigNetT392Admin OBJECT-TYPE SYNTAX INTEGER (5..30) UNITS "Seconds" MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object identifies the desired Network-side T392 polling verification timer value (nT2 for LMI) for this UNI/NNI logical port. If the logical port is not performing network-side procedures, then this object is not instantiated." REFERENCE "Q.933 Annex A [22], T1.617 Annex D [17], LMI [24]" ::= { frMgtVCSigEntry 24 } frMgtVCSigNetnT3Admin OBJECT-TYPE SYNTAX INTEGER (5 | 10 | 15 | 20 | 25 | 30) UNITS "Seconds" MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object identifies the desired Network-side nT3 timer (for nN4 status enquires received) value for this UNI/NNI logical port. If the logical port is not performing network-side procedures or is not performing LMI procedures, then this object is not instantiated. This object applies only to LMI." REFERENCE "LMI [24]" ::= { frMgtVCSigEntry 25 } -- -- Frame Relay PVC End-points -- frPVCEndptTable OBJECT-TYPE SYNTAX SEQUENCE OF FrPVCEndptEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The Frame Relay PVC End-Point table. This table is used to model a PVC end-point. This table contains the traffic parameters and statistics for a PVC end-point. This table is used to identify the traffic parameters for a bi-directional PVC segment end- Rehbehn & Fowler Standards Track [Page 32]
RFC 2954 Frame Relay Service MIB October 2000 point, and it also provides statistics for a PVC segment end-point. A PVC segment end-point is identified by a UNI/NNI logical port index value and DLCI index value. If the frame relay service provider allows the frame relay CNM subscriber to create, modify or delete PVCs using SNMP, then this table is used to identify and reserve the requested traffic parameters of each PVC segment end-point. The Connection table is used to 'connect' the end- points together. Not all implementations will support the capability of creating/modifying/deleting PVCs using SNMP as a feature of frame relay CNM service. Uni-directional PVCs are modeled with zero valued traffic parameters in one of the directions (In or Out direction) in this table. To create a PVC, the following procedures shall be followed: 1) Create the entries for the PVC segment endpoints in the frPVCEndptTable by specifying the traffic parameters for the bi-directional PVC segment endpoints. As shown in figure 2, a point-to-point PVC has two endpoints, thus two entries in this table. Uni-directional PVCs are modeled with zero valued traffic parameters in one direction; all the `In' direction parameters for one frame relay PVC End-point or all the `Out' direction parameters for the other frame relay PVC Endpoint. In _____________________________ Out >>>>>>| |>>>>>>>> ______| Frame Relay Network |________ Out | | In <<<<<<|_____________________________|<<<<<<<< Frame Relay Frame Relay PVC PVC Endpoint Endpoint Figure 2, PVC Terminology Rehbehn & Fowler Standards Track [Page 33]
RFC 2954 Frame Relay Service MIB October 2000 2) Go to the Frame Relay Connection Group." ::= { frnetservObjects 3 } frPVCEndptEntry OBJECT-TYPE SYNTAX FrPVCEndptEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in the Frame Relay PVC Endpoint table." INDEX { ifIndex, frPVCEndptDLCIIndex } ::= { frPVCEndptTable 1 } FrPVCEndptEntry ::= SEQUENCE { frPVCEndptDLCIIndex Integer32, frPVCEndptInMaxFrameSize Integer32, frPVCEndptInBc Integer32, frPVCEndptInBe Integer32, frPVCEndptInCIR Integer32, frPVCEndptOutMaxFrameSize Integer32, frPVCEndptOutBc Integer32, frPVCEndptOutBe Integer32, frPVCEndptOutCIR Integer32, frPVCEndptConnectIdentifier Integer32, frPVCEndptRowStatus RowStatus, frPVCEndptRcvdSigStatus INTEGER, frPVCEndptInFrames Counter32, frPVCEndptOutFrames Counter32, frPVCEndptInDEFrames Counter32, frPVCEndptInExcessFrames Counter32, frPVCEndptOutExcessFrames Counter32, frPVCEndptInDiscards Counter32, frPVCEndptInOctets Counter32, frPVCEndptOutOctets Counter32, frPVCEndptInDiscardsDESet Counter32, frPVCEndptInFramesFECNSet Counter32, frPVCEndptOutFramesFECNSet Counter32, frPVCEndptInFramesBECNSet Counter32, frPVCEndptOutFramesBECNSet Counter32, frPVCEndptInCongDiscards Counter32, frPVCEndptInDECongDiscards Counter32, frPVCEndptOutCongDiscards Counter32, frPVCEndptOutDECongDiscards Counter32, frPVCEndptOutDEFrames Counter32, frPVCEndptAtmIwfConnIndex Integer32 } Rehbehn & Fowler Standards Track [Page 34]
RFC 2954 Frame Relay Service MIB October 2000 frPVCEndptDLCIIndex OBJECT-TYPE SYNTAX Integer32 (16..4194303) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The value of this object is equal to the DLCI value for this PVC end-point. The values are restricted to the legal range for the size of address field supported by the logical port (frLportAddrDLCILen)." REFERENCE "Q.922 [25]" ::= { frPVCEndptEntry 1 } frPVCEndptInMaxFrameSize OBJECT-TYPE SYNTAX Integer32 (1..4096) UNITS "Octets" MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object is the size in octets of the largest frame relay information field for this PVC end-point in the ingress direction (into the frame relay network). The value of frPVCEndptInMaxFrameSize must be less than or equal to the corresponding ifMtu for this frame relay UNI/NNI logical port." REFERENCE "FRF.1 [31] Q.922 [25] Q.933 [22]" DEFVAL { 1600 } ::= { frPVCEndptEntry 2 } frPVCEndptInBc OBJECT-TYPE SYNTAX Integer32 (1..2147483647) UNITS "Bits" MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object is equal to the committed burst size (Bc) parameter (measured in bits) for this PVC end-point in the ingress direction (into the frame relay network). Note that the max value of this range is lower than the max value allowed by Q.933 (16383 * 10**6). Rehbehn & Fowler Standards Track [Page 35]
RFC 2954 Frame Relay Service MIB October 2000 Note that the value is encoded in bits whilst the Q.933 Link layer core parameters information element encodes this information using octet units." REFERENCE "Q.933 [22]" ::= { frPVCEndptEntry 3 } frPVCEndptInBe OBJECT-TYPE SYNTAX Integer32 (1..2147483647) UNITS "Bits" MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object is equal to the excess burst size (Be) parameter (measured in bits) for this PVC end-point in the ingress direction (into the frame relay network). Note that the max value of this range is lower than the max value allowed by Q.933 (16383 * 10**6). Note that the value is encoded in bits whilst the Q.933 Link layer core parameters information element encodes this information using octet units." REFERENCE "Q.933 [22]" ::= { frPVCEndptEntry 4 } frPVCEndptInCIR OBJECT-TYPE SYNTAX Integer32 (1..2147483647) UNITS "Bits per Second" MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object is equal to the committed information rate (CIR) parameter (measured in bits per second) for this PVC end- point in the ingress direction (into the frame relay network). Note that the max value of this range is lower than the max value allowed by Q.933 (2047 * 10**6)." REFERENCE "Q.933 [22]" ::= { frPVCEndptEntry 5 } frPVCEndptOutMaxFrameSize OBJECT-TYPE Rehbehn & Fowler Standards Track [Page 36]
RFC 2954 Frame Relay Service MIB October 2000 SYNTAX Integer32 (1..4096) UNITS "Octets" MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object is the size in octets of the largest frame relay information field for this PVC end-point in the egress direction (out of the frame relay network). The value of frPVCEndptOutMaxFrameSize must be less than or equal to the corresponding ifMtu for this frame relay UNI/NNI logical port." REFERENCE "FRF.1 [31] Q.922 [25] Q.933 [22]" DEFVAL { 1600 } ::= { frPVCEndptEntry 6 } frPVCEndptOutBc OBJECT-TYPE SYNTAX Integer32 (1..2147483647) UNITS "Bits" MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object is equal to the committed burst size (Bc) parameter (measured in bits) for this PVC end-point in the egress direction (out of the frame relay network). Note that the max value of this range is lower than the max value allowed by Q.933 (16383 * 10**6). Note that the value is encoded in bits whilst the Q.933 Link layer core parameters information element encodes this information using octet units." REFERENCE "Q.933 [22]" ::= { frPVCEndptEntry 7 } frPVCEndptOutBe OBJECT-TYPE SYNTAX Integer32 (1..2147483647) UNITS "Bits" MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object is equal to the excess burst size (Be) parameter (measured in bits) for Rehbehn & Fowler Standards Track [Page 37]
RFC 2954 Frame Relay Service MIB October 2000 this PVC end-point in the egress direction (out of the frame relay network). Note that the max value of this range is lower than the max value allowed by Q.933 (16383 * 10**6). Note that the value is encoded in bits whilst the Q.933 Link layer core parameters information element encodes this information using octet units." REFERENCE "Q.933 [22]" ::= { frPVCEndptEntry 8 } frPVCEndptOutCIR OBJECT-TYPE SYNTAX Integer32 (1..2147483647) UNITS "Bits per Second" MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object is equal to the committed information rate (CIR) parameter (measured in bits per second) for this PVC end- point in the egress direction (out of the frame relay network). Note that the max value of this range is lower than the max value allowed by Q.933 (2047 * 10**6)." REFERENCE "Q.933 [22]" ::= { frPVCEndptEntry 9 } frPVCEndptConnectIdentifier OBJECT-TYPE SYNTAX Integer32 (0..2147483647) MAX-ACCESS read-only STATUS current DESCRIPTION "This object is used to associate PVC end-points as being part of one PVC segment connection. This value of this object is equal to the value of frPVCConnectIndex, which is used as one of the indices into the frPVCConnectTable. A connection that has been cross-connected via the FR/ATM PVC Service IWF cross-connect table will return the value zero when this object is read. In case of these interworked connections, the frPVCEndptAtmIwfConnIndex object must be accessed Rehbehn & Fowler Standards Track [Page 38]
RFC 2954 Frame Relay Service MIB October 2000 to select the entry in the FR/ATM PVC Service IWF cross-connect table. The value of this object is provided by the agent, after the associated entries in the frPVCConnectTable or frAtmIwfConnectionTable have been created." ::= { frPVCEndptEntry 10 } frPVCEndptRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object is used to create new rows in this table, modify existing rows, and to delete existing rows. To create a new PVC, the entries for the PVC segment end-points in the frPVCEndptTable must first be created. Next, the frPVCConnectTable is used to associate the frame relay PVC segment end-points. In order for the manager to have the necessary error diagnostics, the frPVCEndptRowStatus object must initially be set to `createAndWait(5)'. While the frPVCEndptRowStatus object is in the `createAndWait(5)' state, the manager can set each columnar object and get the necessary error diagnostics. The frPVCEndptRowStatus object may not be set to `active(1)' unless the following columnar objects exist in this row: frPVCEndptInMaxFrameSize, frPVCEndptInBc, frPVCEndptInBe, frPVCEndptInCIR, frPVCEndptOutMaxFrameSize, frPVCEndptOutBc, frPVCEndptOutBe, and frPVCEndptOutCIR." ::= { frPVCEndptEntry 11 } frPVCEndptRcvdSigStatus OBJECT-TYPE SYNTAX INTEGER { deleted(1), active(2), inactive(3), none(4) } MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the PVC status received via the local in-channel signaling Rehbehn & Fowler Standards Track [Page 39]
RFC 2954 Frame Relay Service MIB October 2000 procedures for this PVC end-point. This object is only pertinent for interfaces that perform the bidirectional procedures. Each value has the following meaning: deleted(1): This PVC is not listed in the full status reports received from the user device. The object retains this value for as long as the PVC is not listed in the full status reports active(2): This PVC is reported as active, or operational, by the user device. inactive(3): This PVC is reported as inactive, or non-operational, by the user device. none(4): This interface is only using the network-side in-channel signaling procedures, so this object does not apply." ::= { frPVCEndptEntry 12 } frPVCEndptInFrames OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames received by the network (ingress) for this PVC end-point. This includes any frames discarded by the network due to submitting more than Bc + Be data or due to any network congestion recovery procedures." ::= { frPVCEndptEntry 13 } frPVCEndptOutFrames OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames sent by the network (egress) regardless of whether they are Bc or Be frames for this PVC end-point." ::= { frPVCEndptEntry 14 } Rehbehn & Fowler Standards Track [Page 40]
RFC 2954 Frame Relay Service MIB October 2000 frPVCEndptInDEFrames OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames received by the network (ingress) with the DE bit set to (1) for this PVC end-point." ::= { frPVCEndptEntry 15 } frPVCEndptInExcessFrames OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames received by the network (ingress) for this PVC end-point which were treated as excess traffic. Frames which are sent to the network with DE set to zero are treated as excess when more than Bc bits are submitted to the network during the Committed Information Rate Measurement Interval (Tc). Excess traffic may or may not be discarded at the ingress if more than Bc + Be bits are submitted to the network during Tc. Traffic discarded at the ingress is not recorded in frPVCEndptInExcessFrames. Frames which are sent to the network with DE set to one are also treated as excess traffic." ::= { frPVCEndptEntry 16 } frPVCEndptOutExcessFrames OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames sent by the network (egress) for this PVC end-point which were treated as excess traffic. (The DE bit may be set to one.)" ::= { frPVCEndptEntry 17 } frPVCEndptInDiscards OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current Rehbehn & Fowler Standards Track [Page 41]
RFC 2954 Frame Relay Service MIB October 2000 DESCRIPTION "The number of frames received by the network (ingress) that were discarded due to traffic enforcement for this PVC end-point. Congestion discards are not counted in this object." ::= { frPVCEndptEntry 18 } frPVCEndptInOctets OBJECT-TYPE SYNTAX Counter32 UNITS "Octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets received by the network (ingress) for this PVC end-point. This counter should only count octets from the beginning of the frame relay header field to the end of user data. If the network supporting frame relay can not count octets, then this count should be an approximation." ::= { frPVCEndptEntry 19 } frPVCEndptOutOctets OBJECT-TYPE SYNTAX Counter32 UNITS "Octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets sent by the network (egress) for this PVC end-point. This counter should only count octets from the beginning of the frame relay header field to the end of user data. If the network supporting frame relay can not count octets, then this count should be an approximation." ::= { frPVCEndptEntry 20 } frPVCEndptInDiscardsDESet OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames received by the network (ingress) that were discarded with the DE bit set due to traffic enforcement for this PVC end-point. Congestion discards are not counted in this object." Rehbehn & Fowler Standards Track [Page 42]
RFC 2954 Frame Relay Service MIB October 2000 ::= { frPVCEndptEntry 21 } frPVCEndptInFramesFECNSet OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames received by the network (ingress) that have the FECN bit set for this PVC end-point." ::= { frPVCEndptEntry 22 } frPVCEndptOutFramesFECNSet OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames sent by the network (egress) that have the FECN bit set for this PVC end- point." ::= { frPVCEndptEntry 23 } frPVCEndptInFramesBECNSet OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames received by the network (ingress) that have the BECN bit set for this PVC end-point." ::= { frPVCEndptEntry 24 } frPVCEndptOutFramesBECNSet OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames sent by the network (egress) that have the BECN bit set for this PVC end- point." ::= { frPVCEndptEntry 25 } frPVCEndptInCongDiscards OBJECT-TYPE SYNTAX Counter32 Rehbehn & Fowler Standards Track [Page 43]
RFC 2954 Frame Relay Service MIB October 2000 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames received by the network (ingress) that were discarded due to input buffer congestion, rather than traffic enforcement, for this PVC end-point." ::= { frPVCEndptEntry 26 } frPVCEndptInDECongDiscards OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames counted by frPVCEndptInCongDiscards with the DE bit set to (1)." ::= { frPVCEndptEntry 27 } frPVCEndptOutCongDiscards OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames sent by the network (egress) that were discarded due to output buffer congestion for this PVC end-point." ::= { frPVCEndptEntry 28 } frPVCEndptOutDECongDiscards OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current DESCRIPTION "The number of frames counted by frPVCEndptOutCongDiscards with the DE bit set to (1)." ::= { frPVCEndptEntry 29 } frPVCEndptOutDEFrames OBJECT-TYPE SYNTAX Counter32 UNITS "Frames" MAX-ACCESS read-only STATUS current Rehbehn & Fowler Standards Track [Page 44]
RFC 2954 Frame Relay Service MIB October 2000 DESCRIPTION "The number of frames sent by the network (egress) with the DE bit set to (1) for this PVC end- point." ::= { frPVCEndptEntry 30 } frPVCEndptAtmIwfConnIndex OBJECT-TYPE SYNTAX Integer32 (0..2147483647) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the index value of the FR/ATM cross-connect table entry used to link the frame relay PVC with an ATM PVC. Each row of the frPVCEndptTable that is not cross-connected with an ATM PVC must return the value zero when this object is read. The value of this object is initialized by the agent after the associated entries in the frAtmIwfConnectionTable have been created. The value of this object is reset to zero following destruction of the associated entry in the frAtmIwfConnectionTable" ::= { frPVCEndptEntry 31 } -- -- Frame Relay PVC Connections -- frPVCConnectIndexValue OBJECT-TYPE SYNTAX INTEGER (0..2147483647) MAX-ACCESS read-only STATUS current DESCRIPTION "This object returns a hint to be used for frPVCConnectIndex when creating entries in the frPVCConnectTable. The value 0 indicates that no unassigned entries are available. To obtain the frPVCConnectIndex value for a new entry, the manager issues a management protocol retrieval operation to obtain the current value of this object. After each retrieval, the agent must Rehbehn & Fowler Standards Track [Page 45]
RFC 2954 Frame Relay Service MIB October 2000 modify the value to the next unassigned index to prevent assignment of the same value to multiple management systems. A management system should repeat the read to obtain a new value should an attempt to create the new row using the previously returned hint fail." ::= { frnetservObjects 4 } frPVCConnectTable OBJECT-TYPE SYNTAX SEQUENCE OF FrPVCConnectEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The Frame Relay PVC Connect Table is used to model the bi-directional PVC segment flows including: point-to-point PVCs, point-to- multipoint PVCs, and multipoint-to-multipoint PVCs. This table has read-create access and is used to associate PVC end-points together as belonging to one connection. The frPVCConnectIndex is used to associate all the bi-directional flows. Not all implementations will support the capability of creating/modifying/deleting PVCs using SNMP as a feature of frame relay CNM service. Once the entries in the frPVCEndptTable are created, the following step are used to associate the PVC end-points as belonging to one PVC connection: 1) Obtain a unique frPVCConnectIndex using the frPVCConnectIndexValue object. 2) Connect the PVC segment endpoints together with the applicable frPVCConnectIndex value obtained via frPVCConnectIndexValue. The entries in this table are created by using the frPVCConnectRowStatus object. 3) The agent will provide the value of the corresponding instances of frPVCEndptConnectIdentifier with the frPVCConnectIndex value. 4) Set frPVCConnectAdminStatus to `active(1)' in Rehbehn & Fowler Standards Track [Page 46]
RFC 2954 Frame Relay Service MIB October 2000 all rows for this PVC segment to turn the PVC on. For example, the Frame Relay PVC Connection Group models a bi-directional, point-to-point PVC segment as one entry in this table. Frame Relay Frame Relay Network Network Low Port High Port __________________________________ | | _____| >> from low to high PVC flow >> |_____ | << from high to low PVC flow << | |__________________________________| The terms low and high are chosen to represent numerical ordering of a PVC segment's endpoints for representation in this table. That is, the endpoint with the lower value of ifIndex is termed 'low', while the opposite endpoint of the segment is termed 'high'. This terminology is to provide directional information; for example the frPVCConnectL2hOperStatus and frPVCConnectH2lOperStatus as illustrated above. If the Frame Relay Connection table is used to model a unidirectional PVC, then one direction (either from low to high or from high to low) has its Operational Status equal to down. A PVC segment is a portion of a PVC that traverses one Frame Relay Network, and a PVC segment is identified by its two end-points (UNI/NNI logical port index value and DLCI index value) through one Frame Relay Network." ::= { frnetservObjects 5 } frPVCConnectEntry OBJECT-TYPE SYNTAX FrPVCConnectEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in the Frame Relay PVC Connect table. This entry is used to model a PVC segment in two directions." INDEX { frPVCConnectIndex, frPVCConnectLowIfIndex, Rehbehn & Fowler Standards Track [Page 47]
RFC 2954 Frame Relay Service MIB October 2000 frPVCConnectLowDLCIIndex, frPVCConnectHighIfIndex, frPVCConnectHighDLCIIndex } ::= { frPVCConnectTable 1 } FrPVCConnectEntry ::= SEQUENCE { frPVCConnectIndex Integer32, frPVCConnectLowIfIndex InterfaceIndex, frPVCConnectLowDLCIIndex Integer32, frPVCConnectHighIfIndex InterfaceIndex, frPVCConnectHighDLCIIndex Integer32, frPVCConnectAdminStatus INTEGER, frPVCConnectL2hOperStatus INTEGER, frPVCConnectH2lOperStatus INTEGER, frPVCConnectL2hLastChange TimeStamp, frPVCConnectH2lLastChange TimeStamp, frPVCConnectRowStatus RowStatus, frPVCConnectUserName SnmpAdminString, frPVCConnectProviderName SnmpAdminString } frPVCConnectIndex OBJECT-TYPE SYNTAX Integer32 (0..2147483647) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The value of this object is equal to the frPVCConnectIndexValue obtained to uniquely identify this PVC segment connection." ::= { frPVCConnectEntry 1 } frPVCConnectLowIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The value of this object is equal to IF-MIB ifIndex value of the UNI/NNI logical port for this PVC segment. The term low implies that this PVC segment end-point has the numerically lower ifIndex value than the connected/associated PVC segment end-point. RFC 1604 permitted a zero value for this object to identify termination at a non-frame relay interface. However, this cross-connect table is limited to frame relay connections. See the frame Rehbehn & Fowler Standards Track [Page 48]
RFC 2954 Frame Relay Service MIB October 2000 relay/ATM IWF MIB [28] for the cross-connect table used for those types of connections." ::= { frPVCConnectEntry 2 } frPVCConnectLowDLCIIndex OBJECT-TYPE SYNTAX Integer32 (16..4194303) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The value of this object is equal to the DLCI value for this end-point of the PVC segment." REFERENCE "Q.922 [25]" ::= { frPVCConnectEntry 3 } frPVCConnectHighIfIndex OBJECT-TYPE SYNTAX InterfaceIndex MAX-ACCESS not-accessible STATUS current DESCRIPTION "The value of this object is equal to IF-MIB ifIndex value for the UNI/NNI logical port for this PVC segment. The term high implies that this PVC segment end-point has the numerically higher ifIndex value than the connected/associated PVC segment end-point." ::= { frPVCConnectEntry 4 } frPVCConnectHighDLCIIndex OBJECT-TYPE SYNTAX Integer32 (16..4194303) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The value of this object is equal to the egress DLCI value for this end-point of the PVC segment." REFERENCE "Q.922 [25]" ::= { frPVCConnectEntry 5 } frPVCConnectAdminStatus OBJECT-TYPE SYNTAX INTEGER { active(1), inactive(2), testing(3) } MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object identifies the desired administrative status of this bi-directional PVC Rehbehn & Fowler Standards Track [Page 49]
RFC 2954 Frame Relay Service MIB October 2000 segment. The active(1) state means the PVC segment is currently operational; the inactive(2) state means the PVC segment is currently not operational; the testing(3) state means the PVC segment is currently undergoing a test. This state is set by an administrative entity. This value affects the PVC status indicated across the ingress NNI/UNI of both end-points of the bi- directional PVC segment. When a PVC segment connection is created using this table, this object is initially set to `inactive(2)'. After the frPVCConnectRowStatus object is set to `active(1)' (and the corresponding/associated entries in the frPVCEndptTable have their frPVCEndptRowStatus object set to `active(1)'), the frPVCConnectAdminStatus object may be set to `active(1)' to turn on the PVC segment connection." ::= { frPVCConnectEntry 6 } frPVCConnectL2hOperStatus OBJECT-TYPE SYNTAX INTEGER { active(1), inactive(2), testing(3), unknown(4) } MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the current operational status of the PVC segment connection in one direction; (i.e., in the low to high direction). This value affects the PVC status indicated across the ingress NNI/UNI (low side) of the PVC segment. The values mean: active(1) - PVC is currently operational inactive(2) - PVC is currently not operational. This may be because of an underlying LMI or DS1 failure. testing(3) - PVC is currently undergoing a test. This may be because of an underlying frLport or DS1 undergoing a test. Rehbehn & Fowler Standards Track [Page 50]
RFC 2954 Frame Relay Service MIB October 2000 unknown(4) - the status of the PVC currently can not be determined." ::= { frPVCConnectEntry 7 } frPVCConnectH2lOperStatus OBJECT-TYPE SYNTAX INTEGER { active(1), inactive(2), testing(3), unknown(4) } MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object identifies the current operational status of the PVC segment connection in one direction; (i.e., in the high to low direction).. This value affects the PVC status indicated across the ingress NNI/UNI (high side) of the PVC segment. The values mean: active(1) - PVC is currently operational inactive(2) - PVC is currently not operational. This may be because of an underlying LMI or DS1 failure. testing(3) - PVC is currently undergoing a test. This may be because of an underlying frLport or DS1 undergoing a test. unknown(4) - the status of the PVC currently can not be determined." ::= { frPVCConnectEntry 8 } frPVCConnectL2hLastChange OBJECT-TYPE SYNTAX TimeStamp MAX-ACCESS read-only STATUS current DESCRIPTION "The value of the Interface MIB's sysUpTime object at the time this PVC segment entered its current operational state in the low to high direction. If the current state was entered prior to the last re-initialization of the FRS agent, then this object contains a zero value." Rehbehn & Fowler Standards Track [Page 51]
RFC 2954 Frame Relay Service MIB October 2000 ::= { frPVCConnectEntry 9 } frPVCConnectH2lLastChange OBJECT-TYPE SYNTAX TimeStamp MAX-ACCESS read-only STATUS current DESCRIPTION "The value of the Interface MIB's sysUpTime object at the time this PVC segment entered its current operational state in the high to low direction. If the current state was entered prior to the last re-initialization of the FRS agent, then this object contains a zero value." ::= { frPVCConnectEntry 10 } frPVCConnectRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "The status of this entry in the frPVCConnectTable. This variable is used to create new connections for the PVC end-points and to change existing connections of the PVC end- points. This object must be initially set to `createAndWait(5)'. In this state, the agent checks the parameters in the associated entries in the frPVCEndptTable to verify that the PVC end- points can be connected (i.e., the In parameters for one PVC end-point are equal to the Out parameters for the other PVC end-point). This object can not be set to `active(1)' unless the following columnar object exists in this row: frPVCConnectAdminStatus. The agent also supplies the associated value of frPVCConnectIndex for the frPVCEndptConnectIdentifier instances. To turn on a PVC segment connection, the frPVCConnectAdminStatus is set to `active(1)'." ::= { frPVCConnectEntry 11 } frPVCConnectUserName OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-create STATUS current DESCRIPTION "This is a service user assigned textual representation of a PVC." ::= { frPVCConnectEntry 12 } Rehbehn & Fowler Standards Track [Page 52]
RFC 2954 Frame Relay Service MIB October 2000 frPVCConnectProviderName OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-create STATUS current DESCRIPTION "This is a system supplied textual representation of PVC. It is assigned by the service provider." ::= { frPVCConnectEntry 13 } -- -- The Frame Relay Accounting -- frAccountPVCTable OBJECT-TYPE SYNTAX SEQUENCE OF FrAccountPVCEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The Frame Relay Accounting PVC table. This table is used to perform accounting on a PVC segment end-point basis." ::= { frnetservObjects 6 } frAccountPVCEntry OBJECT-TYPE SYNTAX FrAccountPVCEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in the Frame Relay Accounting PVC table." INDEX { ifIndex, frAccountPVCDLCIIndex } ::= { frAccountPVCTable 1 } FrAccountPVCEntry ::= SEQUENCE { frAccountPVCDLCIIndex Integer32, frAccountPVCSegmentSize Integer32, frAccountPVCInSegments Counter32, frAccountPVCOutSegments Counter32 } frAccountPVCDLCIIndex OBJECT-TYPE SYNTAX Integer32 (16..4194303) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The value of this object is equal to the DLCI Rehbehn & Fowler Standards Track [Page 53]
RFC 2954 Frame Relay Service MIB October 2000 value for this PVC segment end-point." REFERENCE "Q.922 [25]" ::= { frAccountPVCEntry 1 } frAccountPVCSegmentSize OBJECT-TYPE SYNTAX Integer32 UNITS "Octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object is equal to the Segment Size for this PVC segment end-point." ::= { frAccountPVCEntry 2 } frAccountPVCInSegments OBJECT-TYPE SYNTAX Counter32 UNITS "Segments" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object is equal to the number of segments received by this PVC segment end- point." ::= { frAccountPVCEntry 3 } frAccountPVCOutSegments OBJECT-TYPE SYNTAX Counter32 UNITS "Segments" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object is equal to the number of segments sent by this PVC segment end-point." ::= { frAccountPVCEntry 4 } -- -- Accounting on a Frame Relay Logical Port -- frAccountLportTable OBJECT-TYPE SYNTAX SEQUENCE OF FrAccountLportEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The Frame Relay Accounting Logical Port table. This table is used to perform accounting on a UNI/NNI Logical Port basis." ::= { frnetservObjects 7 } Rehbehn & Fowler Standards Track [Page 54]
RFC 2954 Frame Relay Service MIB October 2000 frAccountLportEntry OBJECT-TYPE SYNTAX FrAccountLportEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in the Frame Relay Accounting Logical Port table." INDEX { ifIndex } ::= { frAccountLportTable 1 } FrAccountLportEntry ::= SEQUENCE { frAccountLportSegmentSize Integer32, frAccountLportInSegments Counter32, frAccountLportOutSegments Counter32 } frAccountLportSegmentSize OBJECT-TYPE SYNTAX Integer32 UNITS "Octets" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object is equal to the Segment Size for this UNI/NNI logical port." ::= { frAccountLportEntry 1 } frAccountLportInSegments OBJECT-TYPE SYNTAX Counter32 UNITS "Segments" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object is equal to the number of segments received by this UNI/NNI logical port." ::= { frAccountLportEntry 2 } frAccountLportOutSegments OBJECT-TYPE SYNTAX Counter32 UNITS "Segments" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object is equal to the number Rehbehn & Fowler Standards Track [Page 55]
RFC 2954 Frame Relay Service MIB October 2000 of segments sent by this UNI/NNI logical port." ::= { frAccountLportEntry 3 } -- -- Frame Relay Network Service Notifications -- frPVCConnectStatusChange NOTIFICATION-TYPE OBJECTS { frPVCConnectIndex, frPVCConnectLowIfIndex, frPVCConnectLowDLCIIndex, frPVCConnectHighIfIndex, frPVCConnectHighDLCIIndex, frPVCConnectL2hOperStatus, frPVCConnectH2lOperStatus, frPVCEndptRcvdSigStatus } STATUS deprecated DESCRIPTION "Refer to the description of the frPVCConnectStatusNotif notification that has replaced this notification. The notification is deprecated due to the incorrect inclusion of index values and to take advantage of the trap prefix for automatic conversion from SMIv2 to SMIv1 by making the one but last sub-ID a zero (i.e. the so-called trap prefix)." ::= { frnetservTraps 1 } frPVCConnectStatusNotif NOTIFICATION-TYPE OBJECTS { frPVCConnectL2hOperStatus, frPVCConnectH2lOperStatus, frPVCEndptRcvdSigStatus } STATUS current DESCRIPTION "This notification indicates that the indicated PVC has changed state. This notification is not sent if an FR-UNI changes state; a linkDown or linkUp notification should be sent instead. The first instance of frPVCEndptRcvdSigStatus is for the endpoint with LowIfIndex, LowDLCIIndex. The second instance of frPVCEndptRcvdSigStatus is for the endpoint with HighIfIndex, HighDLCIIndex" ::= { frnetservTrapsPrefix 2 } -- Conformance Information Rehbehn & Fowler Standards Track [Page 56]
RFC 2954 Frame Relay Service MIB October 2000 frnetservConformance OBJECT IDENTIFIER ::= { frnetservMIB 3 } frnetservGroups OBJECT IDENTIFIER ::= { frnetservConformance 1 } frnetservCompliances OBJECT IDENTIFIER ::= { frnetservConformance 2 } -- -- Service (Read-only) Modules -- frnetservCompliance2 MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for SNMP entities which have Frame Relay Network Service Interfaces. The distinction between 'service' and 'switch' is that a 'switch' is configured via this MIB. Hence, the various read/write objects have write capability. A 'service' represents a passive monitor-only customer network management interface. The various read/write objects are restricted to read-only capability." MODULE -- this module MANDATORY-GROUPS { frnetservLportGroup2, frnetservMgtVCSigGroup, frnetservPVCEndptGroup, frnetservPVCEndptGroup2, frnetservPVCConnectGroup, frnetservPVCConnectNamesGroup, frnetservPVCNotifGroup2 } GROUP frnetservAccountPVCGroup DESCRIPTION "This group is optional for frame relay interfaces. It is mandatory if and only if accounting is performed on a PVC basis this frame relay interface." GROUP frnetservAccountLportGroup DESCRIPTION "This group is optional for frame relay interfaces. It is mandatory if and only if accounting is performed on a logical port basis this frame relay interface." OBJECT frPVCEndptInMaxFrameSize Rehbehn & Fowler Standards Track [Page 57]
RFC 2954 Frame Relay Service MIB October 2000 MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptInBc MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptInBe MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptInCIR MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptOutMaxFrameSize MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptOutBc MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptOutBe MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptOutCIR MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptRowStatus -- subset of RowStatus SYNTAX INTEGER { active(1) } MIN-ACCESS read-only DESCRIPTION "Write access is not required, and only one of the six enumerated values for the RowStatus textual convention need be supported, specifically: active(1)." Rehbehn & Fowler Standards Track [Page 58]
RFC 2954 Frame Relay Service MIB October 2000 OBJECT frPVCConnectAdminStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCConnectRowStatus -- subset of RowStatus SYNTAX INTEGER { active(1) } MIN-ACCESS read-only DESCRIPTION "Write access is not required, and only one of the six enumerated values for the RowStatus textual convention need be supported, specifically: active(1)." OBJECT frLportFragControl MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frLportFragSize MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCConnectUserName MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCConnectProviderName MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { frnetservCompliances 2 } -- -- Switch (Configuration) Compliance -- frnetSwitchCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for SNMP entities which have Frame Relay Network Switch objects. The distinction between 'service' and 'switch' is that a 'switch' is configured via this MIB. Rehbehn & Fowler Standards Track [Page 59]
RFC 2954 Frame Relay Service MIB October 2000 Hence, the various read/write objects have write capability. A 'service' represents a passive monitor-only customer network management interface. The various read/write objects are restricted to read-only capability." MODULE -- this module MANDATORY-GROUPS { frnetservLportGroup2, frnetservLportAdminGroup, frnetservMgtVCSigGroup, frnetservMgtVCSigAdminGroup, frnetservPVCEndptGroup, frnetservPVCEndptGroup2, frnetservPVCConnectGroup, frnetservPVCConnectNamesGroup, frnetservPVCNotifGroup2 } GROUP frnetservAccountPVCGroup DESCRIPTION "This group is optional for frame relay interfaces. It is mandatory if and only if accounting is performed on a PVC basis this frame relay interface." GROUP frnetservAccountLportGroup DESCRIPTION "This group is optional for frame relay interfaces. It is mandatory if and only if accounting is performed on a logical port basis this frame relay interface." ::= { frnetservCompliances 3 } -- -- Historical RFC 1604 Compliance Modules -- frnetservCompliance MODULE-COMPLIANCE STATUS deprecated DESCRIPTION "The compliance statement for SNMP entities which have Frame Relay Network Service Interfaces. This compliance statement has been deprecated in favor of frnetservCompliance2. The new compliance module expands the mandatory groups to include notification and other new objects." MODULE -- this module MANDATORY-GROUPS { frnetservLportGroup, Rehbehn & Fowler Standards Track [Page 60]
RFC 2954 Frame Relay Service MIB October 2000 frnetservMgtVCSigGroup, frnetservPVCEndptGroup, frnetservPVCConnectGroup } GROUP frnetservAccountPVCGroup DESCRIPTION "This group is optional for Frame Relay interfaces. It is mandatory if and only if accounting is performed on a PVC basis this Frame Relay interface." GROUP frnetservAccountLportGroup DESCRIPTION "This group is optional for Frame Relay interfaces. It is mandatory if and only if accounting is performed on a logical port basis this Frame Relay interface." OBJECT frPVCEndptInMaxFrameSize MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptInBc MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptInBe MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptInCIR MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptOutMaxFrameSize MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptOutBc MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptOutBe Rehbehn & Fowler Standards Track [Page 61]
RFC 2954 Frame Relay Service MIB October 2000 MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptOutCIR MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCEndptRowStatus -- subset of RowStatus SYNTAX INTEGER { active(1) } MIN-ACCESS read-only DESCRIPTION "Write access is not required, and only one of the six enumerated values for the RowStatus textual convention need be supported, specifically: active(1)." OBJECT frPVCConnectAdminStatus MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT frPVCConnectRowStatus -- subset of RowStatus SYNTAX INTEGER { active(1) } MIN-ACCESS read-only DESCRIPTION "Write access is not required, and only one of the six enumerated values for the RowStatus textual convention need be supported, specifically: active(1)." ::= { frnetservCompliances 1 } -- -- Frame Relay Service MIB Object Groups -- frnetservLportGroup OBJECT-GROUP OBJECTS { frLportNumPlan, frLportContact, frLportLocation, frLportType, frLportAddrDLCILen, frLportVCSigProtocol, frLportVCSigPointer } STATUS deprecated DESCRIPTION "A collection of objects providing information applicable to a Frame Relay Logical Port. This group has been deprecated to eliminate reference Rehbehn & Fowler Standards Track [Page 62]
RFC 2954 Frame Relay Service MIB October 2000 to the object frLportVCSigPointer. Use the new group frnetservLportGroup2 as a replacement for this group." ::= { frnetservGroups 1 } frnetservMgtVCSigGroup OBJECT-GROUP OBJECTS { frMgtVCSigProced, frMgtVCSigUserN391, frMgtVCSigUserN392, frMgtVCSigUserN393, frMgtVCSigUserT391, frMgtVCSigNetN392, frMgtVCSigNetN393, frMgtVCSigNetT392, frMgtVCSigNetnN4, frMgtVCSigNetnT3, frMgtVCSigUserLinkRelErrors, frMgtVCSigUserProtErrors, frMgtVCSigUserChanInactive, frMgtVCSigNetLinkRelErrors, frMgtVCSigNetProtErrors, frMgtVCSigNetChanInactive } STATUS current DESCRIPTION "A collection of objects providing information applicable to the Local In-Channel Signaling Procedures used for a UNI/NNI logical port." ::= { frnetservGroups 2 } frnetservPVCEndptGroup OBJECT-GROUP OBJECTS { frPVCConnectIndexValue, frPVCEndptInMaxFrameSize, frPVCEndptInBc, frPVCEndptInBe, frPVCEndptInCIR, frPVCEndptOutMaxFrameSize, frPVCEndptOutBc, frPVCEndptOutBe, frPVCEndptOutCIR, frPVCEndptConnectIdentifier, frPVCEndptRowStatus, frPVCEndptRcvdSigStatus, frPVCEndptInFrames, frPVCEndptOutFrames, frPVCEndptInDEFrames, frPVCEndptInExcessFrames, frPVCEndptOutExcessFrames, Rehbehn & Fowler Standards Track [Page 63]
RFC 2954 Frame Relay Service MIB October 2000 frPVCEndptInDiscards, frPVCEndptInOctets, frPVCEndptOutOctets } STATUS current DESCRIPTION "A collection of objects providing information applicable to a Frame Relay PVC end-point." ::= { frnetservGroups 3 } frnetservPVCConnectGroup OBJECT-GROUP OBJECTS { frPVCConnectAdminStatus, frPVCConnectL2hOperStatus, frPVCConnectH2lOperStatus, frPVCConnectL2hLastChange, frPVCConnectH2lLastChange, frPVCConnectRowStatus } STATUS current DESCRIPTION "A collection of objects providing information applicable to a Frame Relay PVC connection." ::= { frnetservGroups 4 } frnetservAccountPVCGroup OBJECT-GROUP OBJECTS { frAccountPVCSegmentSize, frAccountPVCInSegments, frAccountPVCOutSegments } STATUS current DESCRIPTION "A collection of objects providing accounting information application to a Frame Relay PVC end- point." ::= { frnetservGroups 5 } frnetservAccountLportGroup OBJECT-GROUP OBJECTS { frAccountLportSegmentSize, frAccountLportInSegments, frAccountLportOutSegments } STATUS current DESCRIPTION "A collection of objects providing accounting information application to a Frame Relay logical port." ::= { frnetservGroups 6 } frnetservLportGroup2 OBJECT-GROUP OBJECTS { frLportNumPlan, frLportContact, frLportLocation, Rehbehn & Fowler Standards Track [Page 64]
RFC 2954 Frame Relay Service MIB October 2000 frLportType, frLportAddrDLCILen, frLportVCSigProtocol, frLportFragControl, frLportFragSize } STATUS current DESCRIPTION "A collection of objects providing information applicable to a Frame Relay Logical Port. This new version of the Logical Port Group eliminates the frLportVCSigPointer and adds support for fragmentation." ::= { frnetservGroups 7 } frnetservPVCEndptGroup2 OBJECT-GROUP OBJECTS { frPVCEndptInDiscardsDESet, frPVCEndptInFramesFECNSet, frPVCEndptOutFramesFECNSet, frPVCEndptInFramesBECNSet, frPVCEndptOutFramesBECNSet, frPVCEndptInCongDiscards, frPVCEndptInDECongDiscards, frPVCEndptOutCongDiscards, frPVCEndptOutDECongDiscards, frPVCEndptOutDEFrames, frPVCEndptAtmIwfConnIndex } STATUS current DESCRIPTION "Additions to the PVC end-point group. These additions provide new frame counters to track frame loss. In addition, the new FR/ATM IWF MIB cross-connect index is included." ::= { frnetservGroups 8 } frnetservPVCConnectNamesGroup OBJECT-GROUP OBJECTS { frPVCConnectUserName, frPVCConnectProviderName } STATUS current DESCRIPTION "Additions to the PVC Connect Group." ::= { frnetservGroups 9 } frnetservLportAdminGroup OBJECT-GROUP OBJECTS { frLportDLCIIndexValue, frLportTypeAdmin, frLportVCSigProtocolAdmin } STATUS current Rehbehn & Fowler Standards Track [Page 65]
RFC 2954 Frame Relay Service MIB October 2000 DESCRIPTION "Administrative (R/W) objects for creating a switch logical port." ::= { frnetservGroups 10 } frnetservMgtVCSigAdminGroup OBJECT-GROUP OBJECTS { frMgtVCSigProcedAdmin, frMgtVCSigUserN391Admin, frMgtVCSigUserN392Admin, frMgtVCSigUserN393Admin, frMgtVCSigUserT391Admin, frMgtVCSigNetN392Admin, frMgtVCSigNetN393Admin, frMgtVCSigNetT392Admin, frMgtVCSigNetnT3Admin } STATUS current DESCRIPTION "A collection of objects providing information applicable to the Local In-Channel Signaling Procedures used for a UNI/NNI logical port." ::= { frnetservGroups 11 } frnetservPVCNotifGroup NOTIFICATION-GROUP NOTIFICATIONS { frPVCConnectStatusChange } STATUS deprecated DESCRIPTION "Deprecated notification group. The frPVCConnectStatusChange notification was flawed because it included redundant indexes and was not properly encoded for SMIv1 conversion." ::= { frnetservGroups 12 } frnetservPVCNotifGroup2 NOTIFICATION-GROUP NOTIFICATIONS { frPVCConnectStatusNotif } STATUS current DESCRIPTION "A collection of notifications that apply to frame relay PVC Connections " ::= { frnetservGroups 13 } END Rehbehn & Fowler Standards Track [Page 66]
RFC 2954 Frame Relay Service MIB October 2000 4. Acknowledgments This document was produced by the Frame Relay Service MIB Working Group. The working group thanks Bert Wijnen, David Perkins, and Bob Stewart for their assistance in reviewing the MIB. 5. References [1] Harrington, D., Presuhn, R. and B. Wijnen, "An Architecture for Describing SNMP Management Frameworks", RFC 2571, April 1999. [2] Rose, M. and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP-based Internets", STD 16, RFC 1155, May 1990. [3] Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16, RFC 1212, March 1991. [4] Rose, M., "A Convention for Defining Traps for use with the SNMP", RFC 1215, March 1991. [5] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Structure of Management Information Version 2 (SMIv2)", STD 58, RFC 2578, April 1999. [6] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999. [7] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999. [8] Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple Network Management Protocol", STD 15, RFC 1157, May 1990. [9] Case, J., McCloghrie, K., Rose M., and S. Waldbusser, "Introduction to Community-based SNMPv2", RFC 1901, January 1996. [10] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport Mappings for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1906, January 1996. Rehbehn & Fowler Standards Track [Page 67]
RFC 2954 Frame Relay Service MIB October 2000 [11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)", RFC 2572, April 1999. [12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 2574, April 1999. [13] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol Operations for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1905, January 1996. [14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC 2573, April 1999. [15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 2575, April 1999. [16] Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction to Version 3 of the Internet-standard Network Management Framework", RFC 2570, April 1999. [17] ANSI T1.617-1991, American National Standard for Telecommunications - Integrated Services Digital Network (ISDN) - Digital Subscriber Signaling System No. 1 (DSS1) - Signaling Specification for Frame Relay Bearer Service. [18] Brown, C. and F. Baker, "Management Information Base for Frame Relay DTEs", RFC 2115, September 1997. [19] Brown, C. and A. Malis, "Multi-Protocol Interconnect over Frame Relay", STD 55, RFC 2427, September 1998. [20] Fowler, D, "Definitions of Managed Objects for the DS0 and DS0 Bundle Interface Types", RFC 2494, January 1999. [21] Frame Relay Forum, "Frame Relay Fragmentation Implementation Agreement", FRF.12, December 1997. [22] ITU-T Recommendation Q.933,Integrated Services Digital Network (ISDN) Digital Subscriber Signalling System No. 1 (DSS 1) - Signalling Specifications for Frame Mode Switched and Permanent Virtual Connection Control and Status Monitoring, December 1995 Rehbehn & Fowler Standards Track [Page 68]
RFC 2954 Frame Relay Service MIB October 2000 [23] ITU-T Recommendation X.36, Interface Between Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE) For Public Data Networks Providing Frame Relay Data Transmission Service By Dedicated Circuit, April 1995 [24] Digital Equipment Corporation, et. al., "Frame Relay Specification with Extensions Based on Proposed T1S1 Standards", Revision 1.0, September 18, 1990 [25] ITU-T Recommendation Q.922, Integrated Services Digital Network (ISDN) Data Link Layer Specification For Frame Mode Bearer Services, February 1992 [26] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB", RFC 2863, June 2000. [27] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Management Information Base for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1907, January 1996. [28] Rehbehn, K., Nicklass, O. and G. Mouradian, "Definitions of Managed Objects for Monitoring and Controlling the Frame Relay/ATM PVC Service Interworking Function", RFC 2955, October 2000. [29] ITU-T Recommendation E.164/I.331, The International Public Telecommunication Numbering Plan, May 1997 [30] ITU-T Recommendation X.121, International Numbering Plan For Public Data Networks, October 1996 [31] Frame Relay Forum, "The Frame Relay Forum User-to-Network Implementation Agreement (UNI)", FRF 1.2, July 2000. 6. Security Considerations There are a number of management objects defined in this MIB that have a MAX-ACCESS clause of read-write and/or read-create. Such objects may be considered sensitive or vulnerable in some network environments. The support for SET operations in a non-secure environment without proper protection can have a negative effect on network operations. No managed objects in this MIB contain sensitive information. Rehbehn & Fowler Standards Track [Page 69]
RFC 2954 Frame Relay Service MIB October 2000 SNMPv1 by itself is not a secure environment. Even if the network itself is secure (for example by using IPSec), even then, there is no control as to who on the secure network is allowed to access and GET/SET (read/change/create/delete) the objects in this MIB. It is recommended that the implementers consider the security features as provided by the SNMPv3 framework. Specifically, the use of the User-based Security Model RFC 2574 [12] and the View-based Access Control Model RFC 2575 [15] is recommended. It is then a customer/user responsibility to ensure that the SNMP entity giving access to an instance of this MIB, is properly configured to give access to the objects only to those principals (users) that have legitimate rights to indeed GET or SET (change/create/delete) them. 7. Authors' Addresses Kenneth Rehbehn Megisto Systems, Inc. 20251 Century Boulevard Germantown, MD, USA 20874 Phone: (301) 515-3672 EMail: krehbehn@megisto.com David Fowler Syndesis Limited 28 Fulton Way Richmond Hill, Ontario, Canada L4B 1J5 Phone: (905) 886-7818 EMail: fowler@syndesis.com Rehbehn & Fowler Standards Track [Page 70]
RFC 2954 Frame Relay Service MIB October 2000 APPENDIX A Update Information The changes from RFC 1604 are the following: (1) Added the object frLportDLCIIndexValue to automatically generate index values for new DLC rows. (2) Add the following objects to support manager writing to objects: Logical Port Objects frLportTypeAdmin frLportVCSigProtocolAdmin VC Objects frMgtVCSigProcedAdmin frMgtVCSigUserN391Admin frMgtVCSigUserN392Admin frMgtVCSigUserN393Admin frMgtVCSigUserT391Admin frMgtVCSigNetN392Admin frMgtVCSigNetN393Admin frMgtVCSigNetT392Admin frMgtVCSigNetnT3Admin (3) Add objects to control fragmentation: frLportFragControl frLportFragSize (4) Added objects to track frames offered to network (in) and delivered (out) for increased visibility into policing-driven discards, congestion-driven discards, DE-bit setting, and congestion bit setting: frPVCEndptInDiscardsDESet frPVCEndptInFramesFECNSet frPVCEndptOutFramesFECNSet frPVCEndptInFramesBECNSet frPVCEndptOutFramesBECNSet frPVCEndptInCongDiscards frPVCEndptInDECongDiscards frPVCEndptOutCongDiscards frPVCEndptOutDECongDiscards frPVCEndptOutDEFrames (5) Added the PVC object frPVCEndptAtmIwfConnIndex to identify the type of connection, frame relay or ATM IWF; and to identify the cross-connect row of the FR/ATM IWF MIB. Rehbehn & Fowler Standards Track [Page 71]
RFC 2954 Frame Relay Service MIB October 2000 (6) Added objects to provide printable names of the connection user and service provider: frPVCConnectUserName frPVCConnectProviderName (7) Added a new notification to correct flaws in the RFC1604 trap. The flaws include improper OID suffix (SMIv1 compatibility issue) and the inclusion of redundant index fields (8) Updated compliance modules and object groups to reflect the new objects and notification: frnetservCompliance2 - New service-centric (read-only) compliance module frnetSwitchCompliance - New switch-centric (read-write) compliance module frnetservCompliance - Original RFC 1604 Module, now deprecated frnetservLportGroup - Original RFC 1604 logical port group, now deprecated frnetservLportGroup2 - Replacement logical port group frnetservPVCEndptGroup2 - Extension objects with this revision of the MIB frnetservPVCConnectNamesGroup - New group w/ display names for connections frnetservLportAdminGroup - New group w/ read-write objects for the logical port frnetservMgtVCSigAdminGroup - New group w/ read-write objects for the signaling protocol frnetservPVCNotifGroup - Group deprecated to eliminate obsolete frPVCConnectStatusChange notification frnetservPVCNotifGroup2 - New group added with w/ frPVCConnectStatusNotif (9) Added UNITS and REFERENCE clauses for objects that needed the clarification. Rehbehn & Fowler Standards Track [Page 72]
RFC 2954 Frame Relay Service MIB October 2000 (10) Changed references to "proxy-agent" to "FRS agent" to avoid confusion with other proxy-agent terminology. (11) Changed objects using the DisplayString TC to use the SnmpAdminString TC. (12) frMgtVCSigProced - Expanded to include the u2nuser(3) enumeration for the UNI protocol operation where the logical port operates in the user role. (13) DESCRIPTION text added to specify agent response when object is not instantiated for the following objects: frMgtVCSigUserN391 frMgtVCSigUserN393 frMgtVCSigUserT391 frMgtVCSigUserN392 frMgtVCSigNetN391 frMgtVCSigNetN393 frMgtVCSigNetT391 frMgtVCSigNetN392 frMgtVCSigNetnN4 frMgtVCSigNetnT3 frMgtVCSigUserLinkRelErrors frMgtVCSigUserProtErrors frMgtVCSigUserChanInactive (14) DESCRIPTION text addressing case of logical port not performing network-side procedures was removed from following objects: frMgtVCSigNetLinkRelErrors frMgtVCSigNetChanInactive frMgtVCSigNetProtErrors (15) frPVCEndptConnectIdentifier - Operation described for the case of FR/ATM IWF cross-connect operation. (16) frPVCEndptRcvdSigStatus - Added description of enumerated values. (17) frPVCEndptInDiscards - Clarified DESCRIPTION to state that congestion discards are not counted by object. (18) frPVCConnect{Low|High}IfIndex - Changed to use InterfaceIndex TC and changed reference to MIB-II to the new IF-MIB. Removed statement asserting that a zero value means the port is not a FR logical port. Rehbehn & Fowler Standards Track [Page 73]
RFC 2954 Frame Relay Service MIB October 2000 (19) frPVCConnectIndex - Added a range to the SYNTAX clause (20) frPVCConnect{L2h|H2l}OperStatus - Added DESCRIPTION text for each enumerated value. (21) frAccountPVCDLCIIndex - Added a range to the SYNTAX clause (22) frPVCCOnnectStatusChange Notification - STATUS change to deprecated. Obsoleted to eliminate inappropriate inclusion of index objects (23) frPVCConnectStatusNotif Notification - Replaces frPVCConnectStatusChange. In addition, the notification now requires 2 instances of the frPVCEndptRcvdSigStatus object, one for each endpoint of the connection. (24) Guidance added to recommend ifLinkUpDownTrapEnable be set on. (25) Behavior of the PVC status and endpoint signaling status is clarified for the case of underlying layer failure. (26) Overview text re-written for clarity. (27) Clarified role of system group. (28) Established maximum frame size of 4096 and default value of 1600. (29) Clarified that DLC index range is restricted to valid range for the specific length of address field used on the logical port. (30) Figure 1 and accompanying text was removed to eliminate a confusing "MIB stack" concept. See the section titled "Relation to Other MIBs" for replacement text. Rehbehn & Fowler Standards Track [Page 74]
RFC 2954 Frame Relay Service MIB October 2000 Intellectual Property Rights The IETF takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Information on the IETF's procedures with respect to rights in standards-track and standards-related documentation can be found in BCP-11. Copies of claims of rights made available for publication and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF Secretariat. The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights which may cover technology that may be required to practice this standard. Please address the information to the IETF Executive Director. Rehbehn & Fowler Standards Track [Page 75]
RFC 2954 Frame Relay Service MIB October 2000
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Rehbehn & Fowler Standards Track [Page 76]
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