Network Working Group Martin Dubuc Internet Draft Meriton Networks Expires: December 2002 Sudheer Dharanikota Nayna Networks Thomas D. Nadeau Cisco Systems Jonathan P. Lang Calient Networks June 2002 Link Bundling Management Information Base draft-ietf-mpls-bundle-mib-03.txt Status of this Memo This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC 2026. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet- Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. Table of Contents 1. Abstract ..................................................... 2 2. Introduction ................................................. 2 3. Terminology .................................................. 3 4. The SNMP Management Framework ................................ 3 5. Feature Checklist ............................................ 4 Dubuc et al. Expires November 2002 [Page 1] Internet Draft MPLS Link Bundling MIB June 21, 2002 6. Outline ...................................................... 5 6.1. Summary of Link Bundling MIB ................................. 5 7. Brief Description of MIB Objects ............................. 6 7.1. teLinkTable .................................................. 6 7.2. teLinkDescriptorTable ........................................ 6 7.3. teLinkOspfTeTable ............................................ 6 7.4. teLinkSrlgTable .............................................. 6 7.5. teLinkBandwidthTable ......................................... 7 7.6. componentLinkTable ........................................... 7 7.7. componentLinkDescriptorTable ................................. 7 7.8. componentLinkBandwidthTable .................................. 7 8. Example of Bundled Link Setup ................................ 7 9. Application of the Interfaces Group to TE Links .............. 11 9.1 Support of the TE Link Layer by ifTable ...................... 12 9.2 Using ifStackTable ........................................... 13 10. Link Bundling MIB Definitions ................................ 15 11. Security Considerations ...................................... 50 12. Acknowledgments .............................................. 51 13. References ................................................... 51 14. Authors' Addresses ........................................... 54 15. Full Copyright Statement ..................................... 54 1. Abstract This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for modeling link bun- dling as described in the Link Bundling in MPLS Traffic Engineering Internet Draft. 2. Introduction OSPF [OSPF], Generalized MPLS (GMPLS) [GMPLS] and the Link Management Protocol (LMP) [LMP] use the concept of traffic engineering (TE) links to abstract link properties. The effect of this approach is the reduction of the amount of routing information exchanged in the net- work, which improves routing scalability. In addition, the use of TE link allows the implementation of new capabilities such as link pro- tection. We present in this document a MIB that can be used to manage TE links and their extension, the bundled link. This MIB enable both the con- figuration and the performance monitoring of TE links and bundled link. Dubuc et al. Expires November 2002 [Page 2] Internet Draft MPLS Link Bundling MIB June 21, 2002 The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119, reference [RFC2119]. 3. Terminology This document uses terminology from the documents describing link bundling [BUNDLING] and G-MPLS [GMPLS-ARCH]. The link bundling feature is designed to aggregate one or more simi- lar entities between a node pair into a bundled link [BUNDLING]. In the document, those entities are referred to as TE links. A TE link is a subinterface capable of carrying MPLS traffic engineered traffic. A TE Link may be comprised of only one underlying component links. In cases where more than one component link is to be com- bined, multiple component links should be created with differing priorities to indicate hot-standby or parallel utilization. A bundled link is just another kind of Traffic Engineering (TE) link (see [GMPLS-OSPF]). A link bundle is a subinterface which bonds the traffic of a group of one or more TE links. There should be more than one TE Link in a link bundle, but this is not a requirement. Furth- ermore, if there are more than one TE link in a link bundle at some time, and at some point later, all but one of the links are deleted, the agent may choose to either delete the link bundle, or it may choose to leave it intact. Traffic counters on a link bundle are cumulative for all subinterfaces which it binds together. 4. The SNMP Management Framework The SNMP Management Framework presently consists of five major com- ponents: - An overall architecture, described in RFC 2571 [RFC2571]. 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 [RFC1155], STD 16, RFC 1212 [RFC1212] and RFC 1215 [RFC1215]. The second version, called SMIv2, is described in STD 58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580 [RFC2580]. Dubuc et al. Expires November 2002 [Page 3] Internet Draft MPLS Link Bundling MIB June 21, 2002 - Message protocols for transferring management information. The first version of the SNMP message protocol is called SNMPv1 and described in STD 15, RFC 1157 [RFC1157]. A second version of the SNMP message protocol, which is not an Internet standards track protocol, is called SNMPv2c and described in RFC 1901 [RFC1901] and RFC 1906 [RFC1906]. The third version of the message protocol is called SNMPv3 and described in RFC 1906 [RFC1906], RFC 2572 [RFC2572] and RFC 2574 [RFC2574]. - Protocol operations for accessing management information. The first set of protocol operations and associated PDU formats is described in STD 15, RFC 1157 [RFC1157]. A second set of protocol operations and associated PDU formats is described in RFC 1905 [RFC1905]. - A set of fundamental applications described in RFC 2573 [RFC2573] and the view-based access control mechanism described in RFC 2575 [RFC2575]. A more detailed introduction to the current SNMP Management Framework can be found in RFC 2570 [RFC2570]. 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. 5. Feature Checklist The link bundling MIB (LINK-BUNDLING-MIB) is designed to satisfy the following requirements and constraints: - The MIB supports the management of TE links, including bundled links. - Support is provided for configuration of traffic engineering parameters associated with TE links. Dubuc et al. Expires November 2002 [Page 4] Internet Draft MPLS Link Bundling MIB June 21, 2002 - The MIB is used to monitor the priority-based component link and TE link bandwidth values. 6. Outline Configuring bundled links involves the following steps: - Creating a bundled link. - Creating TE links. - Optionally specifying the shared risk link groups associated with the TE links. - Configuring the component links including the bandwidth parameters and associating the component links with the appropriate TE link. - Associating the TE links with the appropriate bundled link. 6.1. Summary of Link Bundling MIB The MIB objects for performing these actions consist of the following tables: - The TE link table (teLinkTable), which is used to specify TE links, including bundled links, and their generic traffic engineering parameters. - The TE link descriptor table (teLinkDescriptorTable), which is used to enumerate the TE link descriptors. - The TE link OSPF traffic engineering table (teLinkOspfTeTable), which is used for configuring OSPF traffic engineering parameters associated with TE links. - The shared risk link group (SRLG) table (teLinkSrlgTable), which is used to specify the SRLGs associated with TE links. - The TE link bandwidth table (teLinkBandwidthTable), which is used for reporting priority-based bandwidth values associated with TE links. - The component link table (componentLinkTable), which is Dubuc et al. Expires November 2002 [Page 5] Internet Draft MPLS Link Bundling MIB June 21, 2002 used to identify the component links that are associated with the TE links and specify the component link generic traffic engineering parameters. - The component link descriptor table (componentLinkDescriptorTable), which is used to enumerate the component link descriptors. - The component link bandwidth table (componentLinkBandwidthTable), which is used to report priority-based bandwidth values associated with component links. These tables are described in the subsequent sections. 7. Brief Description of MIB Objects Sections 7.1-7.5 describe objects pertaining to TE links. The MIB objects were derived from the link bundling document [BUNDLING]. 7.1. teLinkTable This table represents the TE links, including bundled links. 7.2. teLinkDescriptorTable This table represents the TE link descriptors. 7.3. teLinkOspfTeTable This table represents the OSPF traffic engineering parameters that are associated with the TE links. 7.4. teLinkSrlgTable This table represents the shared risk link groups (SRLGs) associated with TE links. Dubuc et al. Expires November 2002 [Page 6] Internet Draft MPLS Link Bundling MIB June 21, 2002 7.5. teLinkBandwidthTable This table specifies the priority-based bandwidth traffic engineering parameters associated with TE links. 7.6. componentLinkTable This table enumerates the component links and their association with TE link. 7.7. componentLinkDescriptorTable This table enumerates the link descriptors that each component link supports. 7.8. componentLinkBandwidthTable The component link bandwidth table specifies the priority-based bandwidth values associated with the component links. 8. Example of Bundled Link Setup In this section we provide a brief example of using the MIB objects described in section 10 to set up a bundled link. While this example is not meant to illustrate every nuance of the MIB, it is intended as an aid to understanding some of the key concepts. It is meant to be read after going through the MIB itself. Suppose that one would like to manually create a bundled link out of two 1:1 TE links. Assume that the bundled link is associated with SRLGs 10 and 50. Finally, let the component links be port entity interfaces (lambdas). The following example illustrates which rows and corresponding objects might be created to accomplish this. First, a bundled link entry is created. An ifEntry with the same ifIndex and with ifType teLink needs to be created beforehand. In teLinkTable: { Dubuc et al. Expires November 2002 [Page 7] Internet Draft MPLS Link Bundling MIB June 21, 2002 ifIndex = 25, teLinkIpAddrType = unknown(0), teLinkRowStatus = createAndGo(4) } In ifStackTable: { ifStackHigherLayer = 0, ifStackLowerLayer = 25, ifStackStatus = createAndGo(4) } Next, the two TE links are created. In teLinkTable: { ifIndex = 20, teLinkIpAddrType = unknown(0), teLinkMetric = 5, teLinkResourceClass = 3, teLinkRowStatus = createAndWait(5) } In ifStackTable: { ifStackHigherLayer = 25, ifStackLowerLayer = 20, ifStackStatus = createAndGo(4) } In teLinkTable: { ifIndex = 21, teLinkIpAddrType = unknown(0), teLinkMetric = 5, teLinkResourceClass = 3, teLinkRowStatus = createAndWait(5) } In ifStackTable: { ifStackHigherLayer = 25, ifStackLowerLayer = 21, ifStackStatus = createAndGo(4) } The OSPF traffic engineering parameters are configured for the TE links. Dubuc et al. Expires November 2002 [Page 8] Internet Draft MPLS Link Bundling MIB June 21, 2002 In teLinkOspfTeTable: { ifIndex = 20, teLinkOspfLinkId = 'c0010101'H, -- 192.1.1.1 teLinkRowStatus = createAndGo(4) } In teLinkOspfTeTable: { ifIndex = 21, teLinkOspfLinkId = 'c0010101'H, -- 192.1.1.1 teLinkRowStatus = createAndGo(4) } We assign SRLGs to the TE links. In the teLinkSrlgTable: { ifIndex = 20, srlg = 10, srlgRowStatus = createAndGo(4) } In the teLinkSrlgTable: { ifIndex = 21, srlg = 50, srlgRowStatus = createAndGo(4) } The bundled link inherits the OSPF and SRLG properties from the associated TE links. Next, for each TE link, two component links are created. An ifEntry with the same ifIndex needs to be created beforehand. In componentLinkTable: { ifIndex = 40, componentLinkPreferredProtection = primary(1), componentLinkRowStatus = createAndGo(4) } In ifStackTable: { ifStackHigherLayer = 20, ifStackLowerLayer = 40, ifStackStatus = createAndGo(4) Dubuc et al. Expires November 2002 [Page 9] Internet Draft MPLS Link Bundling MIB June 21, 2002 } In componentLinkTable: { ifIndex = 43, componentLinkPreferredProtection = secondary(2), componentLinkRowStatus = createAndGo(4) } In ifStackTable: { ifStackHigherLayer = 20, ifStackLowerLayer = 43, ifStackStatus = createAndGo(4) } In componentLinkTable: { ifIndex = 44, componentLinkPreferredProtection = primary(1), componentLinkRowStatus = createAndGo(4) } In ifStackTable: { ifStackHigherLayer = 21, ifStackLowerLayer = 44, ifStackStatus = createAndGo(4) } In componentLinkTable: { ifIndex = 48, componentLinkPreferredProtection = secondary(2), componentLinkRowStatus = createAndGo(4) } In ifStackTable: { ifStackHigherLayer = 21, ifStackLowerLayer = 48, ifStackStatus = createAndGo(4) } In this example, once a component link is added to the componentLinkTable, the associated link descriptors are implicitly added to the componentLinkDescriptorTable. Dubuc et al. Expires November 2002 [Page 10] Internet Draft MPLS Link Bundling MIB June 21, 2002 TE link link descriptors are derived from their component link descriptors. Note that the bandwidth attributes in teLinkDescriptorTable, componentLinkDescriptorTable, teLinkBandwidthTable and componentLinkBandwidthTable are maintained by the device according to LSP creation/deletion at different priorities. The values in the teLinkBandwidthTable are an aggregation of the values for the component links of the TE links and the TE links of the bundled link. 9. Application of the Interfaces Group to TE Links The Interfaces Group [RFC2863] defines generic managed objects for managing interfaces. This memo contains the media-specific extensions to the Interfaces Group for managing TE Link interfaces as logical interfaces. This memo assumes the interpretation of the Interfaces Group to be in accordance with [RFC2863] which states that the interfaces table (ifTable) contains information on the managed resource's interfaces and that each sub-layer below the internetwork layer of a network interface is considered an interface. Thus, the TE Link interface is represented as an entry in the ifTable. The inter- relation of entries in the ifTable is defined by Interfaces Stack Group defined in [RFC2863]. When using TE Link interfaces, the interface stack table might appear as follows: +----------------------------------------+ | TE link-interface ifType = teLink(200) + +----------------------------------------+ | Underlying Layer... + +----------------------------------------+ In the above diagram, "Underlying Layer..." refers to the ifIndex of any interface type, which has been defined for TE Link interworking. Examples include ATM, Frame Relay, Ethernet, etc. 9.1. Support of the TE Link Layer by ifTable Some specific interpretations of ifTable for the TE Link layer follow. Dubuc et al. Expires November 2002 [Page 11] Internet Draft MPLS Link Bundling MIB June 21, 2002 Object Use for the TE Link layer ifIndex Each TE Link interface is represented by an ifEntry. ifDescr Description of the TE Link interface. ifType The value that is allocated for TE Link is 200 [IANAFamily]. ifSpeed The total bandwidth in bits per second for use by the TE Link layer. ifPhysAddress Unused. ifAdminStatus This variable indicates the administrator's intent as to whether TE Link should be enabled, disabled, or running in some diagnostic testing mode on this interface. Also see [RFC2863]. ifOperStatus This value reflects the actual or operational status of TE Link on this interface. ifLastChange See [RFC2863]. ifInOctets The number of received octets over the interface, i.e., the number of received octets in all component links associated with the interface. ifOutOctets The number of transmitted octets over the interface, i.e., the number of octets transmitted over all component links associated with the interface. ifInErrors The number of packets dropped due to uncorrectable errors. ifInUnknownProtos The number of received packets discarded during packet header validation. ifOutErrors See [RFC2863]. ifName Textual name (unique on this system) of the interface or an octet string of zero length. ifLinkUpDownTrapEnable Default is disabled (2). Dubuc et al. Expires November 2002 [Page 12] Internet Draft MPLS Link Bundling MIB June 21, 2002 ifConnectorPresent Set to false (2). ifHighSpeed See [RFC2863]. ifHCInOctets The 64-bit version of ifInOctets; supported if required by the compliance statements in [RFC2863]. ifHCOutOctets The 64-bit version of ifOutOctets; supported if required by the compliance statements in [RFC2863]. ifAlias The non-volatile 'alias' name for the interface as specified by a network manager. ifCounterDiscontinuityTime See [RFC2863]. Support for ifInOctets, ifOutOctets, ifInErrors, ifInUnknownProtos, ifOutErrors, ifHCInOctets and ifHCOutOctets objects is not required if encoding type is clear. For other encoding types, traffic counters on a TE link are cumulative for all subinterfaces which it binds together. 9.2. Using ifStackTable This section describes by example how to use ifStackTable to represent the relationship of TE links with underlying TE-enabled interfaces. Implementors of the stack table for TE link interfaces should look at the appropriate RFC for the service being stacked on TE links. Examples given below are for illustration purposes only. Example: MPLS is being carried on 2 bundled TE links. Each bundled TE link runs over a 1:1 optical transport interface. +---------------------------------+ | mpls | +---------------------------------+ | +---------------------------------+ | teLink (Link Bundle) | +---------------------------------+ | | +---------------+ +---------------+ | teLink | | teLink | Dubuc et al. Expires November 2002 [Page 13] Internet Draft MPLS Link Bundling MIB June 21, 2002 +---------------+ +---------------+ | | | | +------+ +------+ +------+ +------+ |oTrans| |oTrans| |oTrans| |oTrans| +------+ +------+ +------+ +------+ The assignment of the index values could for example be: ifIndex Description 1 mpls (type 166) 2 teLink (type 200) 3 teLink (type 200) 4 teLink (type 200) 5 opticalTransport (type 196) 6 opticalTransport (type 196) 7 opticalTransport (type 196) 8 opticalTransport (type 196) 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 3 5 3 6 4 7 4 8 5 0 6 0 7 0 8 0 In the case where MPLS is using a single TE link, then the upper TE link layer (link bundle) is not required. +---------------+ | mpls | +---------------+ | +---------------+ | teLink | +---------------+ Dubuc et al. Expires November 2002 [Page 14] Internet Draft MPLS Link Bundling MIB June 21, 2002 | | +------+ +------+ |oTrans| |oTrans| +------+ +------+ The assignment of the index values could for example be: ifIndex Description 1 mpls (type 166) 2 teLink (type 200) 3 opticalTransport (type 196) 4 opticalTransport (type 196) 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 3 0 4 0 10. Link Bundling MIB Definitions LINK-BUNDLING-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, experimental, Unsigned32 FROM SNMPv2-SMI MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP FROM SNMPv2-CONF TruthValue, RowStatus, StorageType FROM SNMPv2-TC InterfaceIndexOrZero, ifIndex FROM IF-MIB RouterID FROM OSPF-MIB Dubuc et al. Expires November 2002 [Page 15] Internet Draft MPLS Link Bundling MIB June 21, 2002 InetAddressType, InetAddress FROM INET-ADDRESS-MIB; linkBundlingMIB MODULE-IDENTITY LAST-UPDATED "200206211200Z" -- 21 June 2002 12:00:00 EST ORGANIZATION "Multiprotocol Label Switching (MPLS) Working Group" CONTACT-INFO " Martin Dubuc Postal: Meriton Networks 3026 Solandt Road Kanata, ON, CANADA K2K 2A5 Tel: +1-613-270-9279 x253 Email: martin.dubuc@meriton.com Sudheer Dharanikota Postal: Nayna Networks, Inc. 157 Topaz Street Milipitas, CA 95035 Tel: +1-408-956-8000 x357 Email: sudheer@nayna.com Thomas D. Nadeau Postal: Cisco Systems, Inc. 300 Apollo Drive Chelmsford, MA 01824 Tel: +1-978-244-3051 Email: tnadeau@cisco.com Jonathan P. Lang Postal: Calient Networks, Inc. 25 Castilian Drive Goleta, CA 93117 Email: jplang@calient.net" DESCRIPTION "This MIB contains managed object definitions for MPLS traffic engineering link bundling as defined in: Kompella, K., Rekhter, Y., Berger, L., Link Bundling in MPLS Traffic Engineering Internet Draft , May 2002." -- Revision history. REVISION "200206141200Z" -- 21 June 2002 12:00:00 EST DESCRIPTION "Addressed WG chair comments." Dubuc et al. Expires November 2002 [Page 16] Internet Draft MPLS Link Bundling MIB June 21, 2002 REVISION "200205211200Z" -- 21 May 2002 12:00:00 EST DESCRIPTION "Addressed comments received during Last Call. - Addressed syntax errors reports by smilint. - Reintroduced teLinkIpAddrType. - Replaced ifIndex in linkBundlingMismatch notification with TE link endpoint objects." REVISION "200202261200Z" -- 26 February 2002 12:00:00 EST DESCRIPTION "- Updated MIB boiler plate and references. - Added linkBundlingFullModuleCompliance conformance statement. - Removed teLinkIpAddrType. Replaced numbered value with ipV4 and ipV6 values in teLinkNumberingType. - Updated description of all row status and storage type objects. - Changed some of the enumerated value to start from 1 instead of 0. - Updated references." REVISION "200109101200Z" -- 10 September 2001 12:00:00 EST DESCRIPTION "Removed teLinkRemoteId. Updated teLinkEncodingType and componentLinkEncodingType values." REVISION "200105221200Z" -- 22 May 2001 12:00:00 EST DESCRIPTION "Replaced InetAddressIPv4 and InetAddressIPv6 with InetAddress and InetAddrType. Changed description of entries which extend ifEntry. Made various minor corrections." REVISION "200105151200Z" -- 15 May 2001 12:00:00 EST DESCRIPTION "Replaced componentLinkTable by componentLinkTable. Replaced linkBundlingTable by teLinkTable. Converted TE links into interfaces." REVISION "200102231200Z" -- 23 February 2001 12:00:00 EST DESCRIPTION "Initial draft version." ::= { experimental 114 } -- See [Assigned] -- Textual Conventions -- Top level components of this MIB -- Notifications Dubuc et al. Expires November 2002 [Page 17] Internet Draft MPLS Link Bundling MIB June 21, 2002 linkBundlingNotifications OBJECT IDENTIFIER ::= { linkBundlingMIB 0 } -- Tables, Scalars linkBundlingObjects OBJECT IDENTIFIER ::= { linkBundlingMIB 1 } -- Conformance linkBundlingConformance OBJECT IDENTIFIER ::= { linkBundlingMIB 2 } -- TE Link Table teLinkTable OBJECT-TYPE SYNTAX SEQUENCE OF TeLinkEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table specifies the grouping of component links into TE links and grouping of TE links into bundled links." ::= { linkBundlingObjects 1 } teLinkEntry OBJECT-TYPE SYNTAX TeLinkEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table exists for each ifEntry with an ifType of teLink(TBD), i.e. for every TE link. An ifEntry in the ifTable must exist before a teLinkEntry is created with the corresponding ifIndex. If a TE link entry in the ifTable is destroyed, then so is the corresponding entry in the teLinkTable. The administrative and operational status values are controlled from the ifEntry. If the link is unnumbered, ifIndex is also used as the outgoing interface identifier." INDEX { ifIndex } ::= { teLinkTable 1 } TeLinkEntry ::= SEQUENCE { teLinkIpAddrType InetAddressType, teLinkIpAddr InetAddress, teLinkRemoteIpAddr InetAddress, teLinkMetric Unsigned32, teLinkMuxCapability INTEGER, teLinkProtectionType INTEGER, teLinkWorkingPriority Unsigned32, teLinkResourceClass Unsigned32, teLinkIncomingIfId InterfaceIndexOrZero, teLinkOutgoingIfId InterfaceIndexOrZero, teLinkFlooding InterfaceIndexOrZero, teLinkRowStatus RowStatus, teLinkStorageType StorageType } Dubuc et al. Expires November 2002 [Page 18] Internet Draft MPLS Link Bundling MIB June 21, 2002 teLinkIpAddrType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-create STATUS current DESCRIPTION "For IPv4 and IPv6 numbered links, this object represents the IP address type associated with the TE link. For unnumbered links, a value of unknown(0) must be used." ::= { teLinkEntry 1 } teLinkIpAddr OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-create STATUS current DESCRIPTION "For IPv4 and IPv6 numbered links, this object represents the IP address associated with the TE link." ::= { teLinkEntry 2 } teLinkRemoteIpAddr OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-create STATUS current DESCRIPTION "The remote IP address associated with the TE link (IPv4 and IPv6 numbered links)." ::= { teLinkEntry 3 } teLinkMetric OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "The traffic engineering metric for the TE link is derived from its component links. All component links within the TE link must have the same traffic engineering metric." REFERENCE "draft-ietf-mpls-bundle-03.txt - Link Bundling in MPLS Traffic Engineering, K. Kompella, Y. Rekhter, L. Berger, May 2002." ::= { teLinkEntry 4 } teLinkMuxCapability OBJECT-TYPE SYNTAX INTEGER { packetSwitch1(1), packetSwitch2(2), packetSwitch3(3), Dubuc et al. Expires November 2002 [Page 19] Internet Draft MPLS Link Bundling MIB June 21, 2002 packetSwitch4(4), layer2Switch(51), tdm(100), lambdaSwitch(150), fiberSwitch(200) } MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies link multiplex capability of the TE link, which is derived from its component links. All component links within the same TE link must have the same link multiplex capability." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { teLinkEntry 5 } teLinkProtectionType OBJECT-TYPE SYNTAX INTEGER { extraTraffic(1), unprotected(2), shared(3), dedicated1For1(4), dedicated1Plus1(5), enhanced(6) } MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies link protection type of the TE link." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { teLinkEntry 6 } teLinkWorkingPriority OBJECT-TYPE SYNTAX Unsigned32 (0..7) MAX-ACCESS read-create STATUS current DESCRIPTION "This object represents a priority value such that a new connection with a higher priority, i.e. numerically lower than Dubuc et al. Expires November 2002 [Page 20] Internet Draft MPLS Link Bundling MIB June 21, 2002 this value, is guaranteed to be setup on a primary link and not on a secondary link." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { teLinkEntry 7 } teLinkResourceClass OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies the TE link resource class. The resource class is a 32 bit bitfield. The resource class for a link bundle is derived from the resource class of its TE links. All TE links within a link bundle must have the same resource class." ::= { teLinkEntry 8 } teLinkIncomingIfId OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "For unnumbered links, the incoming interface is set to the outgoing interface identifier chosen by the neighboring LSR for the reverse link corresponding to this TE link." REFERENCE "draft-ietf-mpls-bundle-03.txt - Link Bundling in MPLS Traffic Engineering, K. Kompella, Y. Rekhter, L. Berger, May 2002." ::= { teLinkEntry 9 } teLinkOutgoingIfId OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "If the link is unnumbered, the outgoing interface identifier is set to the outgoing interface identifier chosen for the TE link by the advertising LSR." REFERENCE "draft-ietf-mpls-bundle-03.txt - Link Bundling in MPLS Traffic Engineering, K. Kompella, Y. Rekhter, L. Berger, May 2002." ::= { teLinkEntry 10 } Dubuc et al. Expires November 2002 [Page 21] Internet Draft MPLS Link Bundling MIB June 21, 2002 teLinkFlooding OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "This object only has significance for link bundles which encoding type is not clear. For these link bundles, this object identifies the TE link on which to restrict flooding. If the value is zero, then flooding must be done on all TE links within the link bundle." REFERENCE "draft-ietf-ospf-isis-flood-opt-01.txt - Flooding optimization in link-state routing protocols, A. Zinin, M. Shand, March 2001." DEFVAL { 0 } ::= { teLinkEntry 11 } teLinkRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This variable is used to create, modify, and/or delete a row in this table. All read-create objects can only be changed when teLinkRowStatus is active." ::= { teLinkEntry 12 } teLinkStorageType OBJECT-TYPE SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION "The storage type for this conceptual row in the teLinkTable. Conceptual rows having the value 'permanent' need not allow write-access to any columnar object in the row." ::= { teLinkEntry 13 } -- End of teLinkTable -- TE Link Descriptor Table teLinkDescriptorTable OBJECT-TYPE SYNTAX SEQUENCE OF TeLinkDescriptorEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION Dubuc et al. Expires November 2002 [Page 22] Internet Draft MPLS Link Bundling MIB June 21, 2002 "This table specifies the link descriptors associated with the TE links." ::= { linkBundlingObjects 2 } teLinkDescriptorEntry OBJECT-TYPE SYNTAX TeLinkDescriptorEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table is created for every TE link descriptor. An ifEntry in the ifTable must exist before a teLinkDescriptorEntry using the same ifIndex is created. If a TE link entry in the ifTable is destroyed, then so are all entries in the teLinkDescriptorTable that use the ifIndex of this TE link." INDEX { ifIndex, teLinkDescriptorId } ::= { teLinkDescriptorTable 1 } TeLinkDescriptorEntry ::= SEQUENCE { teLinkDescriptorId Unsigned32, teLinkEncodingType INTEGER, teLinkDescrPriority Unsigned32, teLinkMinReservableBandwidth Unsigned32, teLinkMaxReservableBandwidth Unsigned32, teLinkDescrRowStatus RowStatus, teLinkDescrStorageType StorageType } teLinkDescriptorId OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS not-accessible STATUS current DESCRIPTION "This object specifies the link descriptor identifier." ::= { teLinkDescriptorEntry 1 } teLinkEncodingType OBJECT-TYPE SYNTAX INTEGER { packet(1), ethernet(2), ansiEtsiPdh(3), sdhItuSonetAnsi(5), digitalWrapper(7), lambda(8), fiber(9), fiberChannel(11) } MAX-ACCESS read-create Dubuc et al. Expires November 2002 [Page 23] Internet Draft MPLS Link Bundling MIB June 21, 2002 STATUS current DESCRIPTION "This attribute specifies the TE link encoding type." REFERENCE "draft-ietf-mpls-generalized-signaling-08.txt - Generalized MPLS Signaling Functional Description, P. Ashwood-Smith, A. Banarjee, L. Berger, G. Bernstein, J. Drake, Y. Fan, E. Mannie, J. Lang, B. Rajagopalan, Y. Rekhter, D. Saha, V. Sharma, G. Swallow, Z. Tang, April 2002." ::= { teLinkDescriptorEntry 2 } teLinkDescrPriority OBJECT-TYPE SYNTAX Unsigned32 (0..7) MAX-ACCESS read-create STATUS current DESCRIPTION "This object specifies the lowest priority at which that link encoding type is available." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { teLinkDescriptorEntry 3 } teLinkMinReservableBandwidth OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies the minimum reservable bandwidth on the TE link. This is derived from the union of the minimum reservable bandwidth of all the component links associated with the TE link that can be used to carry live traffic. This value is an estimate in units of 1,000 bits per second." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { teLinkDescriptorEntry 4 } teLinkMaxReservableBandwidth OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION Dubuc et al. Expires November 2002 [Page 24] Internet Draft MPLS Link Bundling MIB June 21, 2002 "This attribute specifies the maximum reservable bandwidth on the TE link. This is the union of the maximum reservable bandwidth of all the component links within the TE link that can be used to carry live traffic. This value is an estimate in units of 1,000 bits per second." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { teLinkDescriptorEntry 5 } teLinkDescrRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This variable is used to create, modify, and/or delete a row in this table. All read-create objects can only be changed when teLinkDescrRowStatus is active." ::= { teLinkDescriptorEntry 6 } teLinkDescrStorageType OBJECT-TYPE SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION "The storage type for this conceptual row in the teLinkDescriptorTable. Conceptual rows having the value 'permanent' need not allow write-access to any columnar object in the row." ::= { teLinkDescriptorEntry 7 } -- End of teLinkDescriptorTable -- OSPF Traffic Engineering Parameters for TE Links teLinkOspfTeTable OBJECT-TYPE SYNTAX SEQUENCE OF TeLinkOspfTeEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table specifies the OSPF traffic engineering information associated with TE links." ::= { linkBundlingObjects 3 } teLinkOspfTeEntry OBJECT-TYPE Dubuc et al. Expires November 2002 [Page 25] Internet Draft MPLS Link Bundling MIB June 21, 2002 SYNTAX TeLinkOspfTeEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "If OSPF is enabled, an entry in this table is created for every TE link." AUGMENTS { teLinkEntry } ::= { teLinkOspfTeTable 1 } TeLinkOspfTeEntry ::= SEQUENCE { teLinkOspfLinkType INTEGER, teLinkOspfLinkId RouterID } teLinkOspfLinkType OBJECT-TYPE SYNTAX INTEGER { pointToPoint(1), multiAccess(2) } MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies the OSPF link type for the TE link. All TE links within the same bundle must have the same link type." ::= { teLinkOspfTeEntry 1 } teLinkOspfLinkId OBJECT-TYPE SYNTAX RouterID MAX-ACCESS read-create STATUS current DESCRIPTION "On point-to-point link, the link identifier is the Router ID of the neighbor. For bundled link, is derived from the link identifier associated with its TE links." REFERENCE "draft-ietf-mpls-bundle-03.txt - Link Bundling in MPLS Traffic Engineering, K. Kompella, Y. Rekhter, L. Berger, May 2002." ::= { teLinkOspfTeEntry 2 } -- End of teLinkOspfTeTable -- TE Link Shared Risk Link Group Table teLinkSrlgTable OBJECT-TYPE SYNTAX SEQUENCE OF TeLinkSrlgEntry Dubuc et al. Expires November 2002 [Page 26] Internet Draft MPLS Link Bundling MIB June 21, 2002 MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table specifies the SRLGs associated with TE links." ::= { linkBundlingObjects 4 } teLinkSrlgEntry OBJECT-TYPE SYNTAX TeLinkSrlgEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table contains information about a SRLG associated with a TE link. An ifEntry in the ifTable must exist before a teLinkSrlgEntry using the same ifIndex is created. If a TE link entry in the ifTable is destroyed, then so are all entries in the teLinkSrlgTable that use the ifIndex of this TE link." INDEX { ifIndex, srlg } ::= { teLinkSrlgTable 1 } TeLinkSrlgEntry ::= SEQUENCE { srlg Unsigned32, srlgRowStatus RowStatus, srlgStorageType StorageType } srlg OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS not-accessible STATUS current DESCRIPTION "This identifies a SRLG supported by the TE link." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { teLinkSrlgEntry 1 } srlgRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This variable is used to create, modify, and/or delete a row in this table. All read-create objects can only be changed when srlgRowStatus is active." Dubuc et al. Expires November 2002 [Page 27] Internet Draft MPLS Link Bundling MIB June 21, 2002 ::= { teLinkSrlgEntry 2 } srlgStorageType OBJECT-TYPE SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION "The storage type for this conceptual row in the teLinkSrlgTable. Conceptual rows having the value 'permanent' need not allow write-access to any columnar object in the row." ::= { teLinkSrlgEntry 3 } -- End of teLinkSrlgTable -- TE Link Bandwidth Table teLinkBandwidthTable OBJECT-TYPE SYNTAX SEQUENCE OF TeLinkBandwidthEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table specifies the priority-based bandwidth table for TE links." ::= { linkBundlingObjects 5 } teLinkBandwidthEntry OBJECT-TYPE SYNTAX TeLinkBandwidthEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table contains information about the priority-based bandwidth of TE links. An ifEntry in the ifTable must exist before a teLinkBandwidthEntry using the same ifIndex is created. If a TE link entry in the ifTable is destroyed, then so are all entries in the teLinkBandwidthTable that use the ifIndex of this TE link." INDEX { ifIndex, teLinkPriority } ::= { teLinkBandwidthTable 1 } TeLinkBandwidthEntry ::= SEQUENCE { teLinkPriority Unsigned32, teLinkUnreservedBandwidth Unsigned32, teLinkMaximumLspBandwidth Unsigned32, teLinkBandwidthRowStatus RowStatus, teLinkBandwidthStorageType StorageType } Dubuc et al. Expires November 2002 [Page 28] Internet Draft MPLS Link Bundling MIB June 21, 2002 teLinkPriority OBJECT-TYPE SYNTAX Unsigned32 (1..8) MAX-ACCESS not-accessible STATUS current DESCRIPTION "This attribute specifies the priority. It should be mapped to a number between 0 and 7" REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { teLinkBandwidthEntry 1 } teLinkUnreservedBandwidth OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "This attribute specifies the TE link unreserved bandwidth at priority p. It is the sum of the unreserved bandwidths at priority p of all component links associated with the TE link (excludes all links that are strictly used as protecting links). This value is an estimate in units of 1,000 bits per second." REFERENCE "draft-ietf-mpls-bundle-03.txt - Link Bundling in MPLS Traffic Engineering, K. Kompella, Y. Rekhter, L. Berger, May 2002." ::= { teLinkBandwidthEntry 2 } teLinkMaximumLspBandwidth OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies the TE link maximum LSP bandwidth at priority p. It is the maximum of all maximum LSP bandwidth at priority p of the component links associated with the TE link (excludes all links that are strictly used as protecting links). This value is an estimate in units of 1,000 bits per second." REFERENCE "draft-ietf-mpls-bundle-03.txt - Link Bundling in MPLS Traffic Engineering, K. Kompella, Y. Rekhter, L. Berger, May 2002." ::= { teLinkBandwidthEntry 3 } Dubuc et al. Expires November 2002 [Page 29] Internet Draft MPLS Link Bundling MIB June 21, 2002 teLinkBandwidthRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This variable is used to create, modify, and/or delete a row in this table. All read-create objects can only be changed when teLinkBandwidthRowStatus is active." ::= { teLinkBandwidthEntry 4 } teLinkBandwidthStorageType OBJECT-TYPE SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION "The storage type for this conceptual row in the teLinkBandwidthTable. Conceptual rows having the value 'permanent' need not allow write-access to any columnar object in the row." ::= { teLinkBandwidthEntry 5 } -- End of teLinkBandwidthTable -- Component Link Table componentLinkTable OBJECT-TYPE SYNTAX SEQUENCE OF ComponentLinkEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table specifies the component link parameters." ::= { linkBundlingObjects 6 } componentLinkEntry OBJECT-TYPE SYNTAX ComponentLinkEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table exists for each ifEntry that represents a component link. An ifEntry must exist in the ifTable before a componentLinkEntry is created with the corresponding ifIndex. If an entry representing a component link is destroyed in the ifTable, then so is the corresponding entry in the componentLinkTable. The administrative and operational status values are controlled from the ifEntry." INDEX { ifIndex } Dubuc et al. Expires November 2002 [Page 30] Internet Draft MPLS Link Bundling MIB June 21, 2002 ::= { componentLinkTable 1 } ComponentLinkEntry ::= SEQUENCE { componentLinkMuxCapability INTEGER, componentLinkPreferredProtection INTEGER, componentLinkCurrentProtection INTEGER, componentLinkRowStatus RowStatus, componentLinkStorageType StorageType } componentLinkMuxCapability OBJECT-TYPE SYNTAX INTEGER { packetSwitch1(1), packetSwitch2(2), packetSwitch3(3), packetSwitch4(4), layer2Switch(51), tdm(100), lambdaSwitch(150), fiberSwitch(200) } MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies link multiplexing capabilities of the component link." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { componentLinkEntry 1 } componentLinkPreferredProtection OBJECT-TYPE SYNTAX INTEGER { primary(1), secondary(2) } MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies whether this component link is a primary or secondary entity." ::= { componentLinkEntry 2 } componentLinkCurrentProtection OBJECT-TYPE SYNTAX INTEGER { primary(1), Dubuc et al. Expires November 2002 [Page 31] Internet Draft MPLS Link Bundling MIB June 21, 2002 secondary(2) } MAX-ACCESS read-only STATUS current DESCRIPTION "This attribute specifies whether this component link is currently used as primary or secondary link." ::= { componentLinkEntry 3 } componentLinkRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This variable is used to create, modify, and/or delete a row in this table. All read-create objects can only be changed when componentLinkRowStatus is active." ::= { componentLinkEntry 4 } componentLinkStorageType OBJECT-TYPE SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION "The storage type for this conceptual row in the componentLinkTable. Conceptual rows having the value 'permanent' need not allow write-access to any columnar object in the row." ::= { componentLinkEntry 5 } -- End of componentLinkTable -- Component Link Descriptor Table componentLinkDescriptorTable OBJECT-TYPE SYNTAX SEQUENCE OF ComponentLinkDescriptorEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table specifies the link descriptors associated with the component links." ::= { linkBundlingObjects 7 } componentLinkDescriptorEntry OBJECT-TYPE SYNTAX ComponentLinkDescriptorEntry MAX-ACCESS not-accessible STATUS current Dubuc et al. Expires November 2002 [Page 32] Internet Draft MPLS Link Bundling MIB June 21, 2002 DESCRIPTION "An entry in this table is created for every component link descriptor. An ifEntry in the ifTable must exist before a componentLinkDescriptorEntry using the same ifIndex is created. If a component link entry in the ifTable is destroyed, then so are all entries in the componentLinkDescriptorTable that use the ifIndex of this component link." INDEX { ifIndex, componentLinkDescrId } ::= { componentLinkDescriptorTable 1 } ComponentLinkDescriptorEntry ::= SEQUENCE { componentLinkDescrId Unsigned32, componentLinkEncodingType INTEGER, componentLinkDescrPriority Unsigned32, componentLinkMinReservBandwidth Unsigned32, componentLinkMaxReservBandwidth Unsigned32, componentLinkDescrRowStatus RowStatus, componentLinkDescrStorageType StorageType } componentLinkDescrId OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS not-accessible STATUS current DESCRIPTION "This object specifies the link descriptor identifier." ::= { componentLinkDescriptorEntry 1 } componentLinkEncodingType OBJECT-TYPE SYNTAX INTEGER { packet(1), ethernet(2), ansiEtsiPdh(3), sdhItuSonetAnsi(5), digitalWrapper(7), lambda(8), fiber(9), fiberChannel(11) } MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies the component link encoding type." REFERENCE "draft-ietf-mpls-generalized-signaling-08.txt - Generalized MPLS Signaling Functional Description, P. Ashwood-Smith, A. Banarjee, L. Berger, G. Bernstein, J. Drake, Y. Fan, E. Mannie, J. Lang, B. Rajagopalan, Y. Rekhter, D. Saha, Dubuc et al. Expires November 2002 [Page 33] Internet Draft MPLS Link Bundling MIB June 21, 2002 V. Sharma, G. Swallow, Z. Tang, April 2002." ::= { componentLinkDescriptorEntry 2 } componentLinkDescrPriority OBJECT-TYPE SYNTAX Unsigned32 (0..7) MAX-ACCESS read-create STATUS current DESCRIPTION "This object specifies the lowest priority at which that link encoding type is available for the component link." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { componentLinkDescriptorEntry 3 } componentLinkMinReservBandwidth OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies the minimum reservable bandwidth on the component link. This value is an estimate in units of 1,000 bits per second." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { componentLinkDescriptorEntry 4 } componentLinkMaxReservBandwidth OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies the maximum reservable bandwidth on the component link. This value is an estimate in units of 1,000 bits per second." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { componentLinkDescriptorEntry 5 } componentLinkDescrRowStatus OBJECT-TYPE Dubuc et al. Expires November 2002 [Page 34] Internet Draft MPLS Link Bundling MIB June 21, 2002 SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This variable is used to create, modify, and/or delete a row in this table. All read-create objects can only be changed when componentLinkDescrRowStatus is active." ::= { componentLinkDescriptorEntry 6 } componentLinkDescrStorageType OBJECT-TYPE SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION "The storage type for this conceptual row in the componentLinkDescriptorTable. Conceptual rows having the value 'permanent' need not allow write-access to any columnar object in the row." ::= { componentLinkDescriptorEntry 7 } -- End of componentLinkDescriptorTable -- Component Link Bandwidth Table componentLinkBandwidthTable OBJECT-TYPE SYNTAX SEQUENCE OF ComponentLinkBandwidthEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table specifies the priority-based bandwidth for component links." ::= { linkBundlingObjects 8 } componentLinkBandwidthEntry OBJECT-TYPE SYNTAX ComponentLinkBandwidthEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table contains information about the priority-based bandwidth on component links. An ifEntry in the ifTable must exist before a componentLinkBandwidthEntry using the same ifIndex is created. If a component link entry in the ifTable is destroyed, then so are all entries in the componentLinkBandwidthTable that use the ifIndex of this component link." Dubuc et al. Expires November 2002 [Page 35] Internet Draft MPLS Link Bundling MIB June 21, 2002 INDEX { ifIndex, componentLinkPriority } ::= { componentLinkBandwidthTable 1 } ComponentLinkBandwidthEntry ::= SEQUENCE { componentLinkPriority Unsigned32, componentLinkUnreservedBandwidth Unsigned32, componentLinkMaximumLspBandwidth Unsigned32, componentLinkBandwidthRowStatus RowStatus, componentLinkBwStorageType StorageType } componentLinkPriority OBJECT-TYPE SYNTAX Unsigned32 (1..8) MAX-ACCESS not-accessible STATUS current DESCRIPTION "This attribute specifies the priority. It should be mapped to a number between 0 and 7." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { componentLinkBandwidthEntry 1 } componentLinkUnreservedBandwidth OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "This attribute specifies the component link unreserved bandwidth at priority p. This value is an estimate in units of 1,000 bits per second." REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { componentLinkBandwidthEntry 2 } componentLinkMaximumLspBandwidth OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "This attribute specifies the component link maximum LSP bandwidth at priority p. This value is an estimate in units of 1,000 bits per second." Dubuc et al. Expires November 2002 [Page 36] Internet Draft MPLS Link Bundling MIB June 21, 2002 REFERENCE "draft-ietf-ccamp-ospf-gmpls-extensions-07.txt - OSPF Extensions in Support of Generalized MPLS, K. Kompella, Y. Rekhter, A. Banerjee, J. Drake, G. Bernstein, D. Fedyk, E. Mannie, D. Saha, V. Sharma, May 2002." ::= { componentLinkBandwidthEntry 3 } componentLinkBandwidthRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This variable is used to create, modify, and/or delete a row in this table. All read-create objects can only be changed when componentLinkBandwidthRowStatus is active." ::= { componentLinkBandwidthEntry 4 } componentLinkBwStorageType OBJECT-TYPE SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION "The storage type for this conceptual row in the componentLinkBandwidthTable. Conceptual rows having the value 'permanent' need not allow write-access to any columnar object in the row." ::= { componentLinkBandwidthEntry 5 } -- End of componentLinkBandwidthTable -- Notification Configuration linkBundlingNotifEnable OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "If this object is true, then it enables the generation of the link bundling notifications, otherwise these notifications are not emitted." DEFVAL { false } ::= { linkBundlingObjects 9 } -- Notifications Dubuc et al. Expires November 2002 [Page 37] Internet Draft MPLS Link Bundling MIB June 21, 2002 -- Bundled Link Notifications linkBundleMismatch NOTIFICATION-TYPE OBJECTS { teLinkIpAddrType, teLinkIpAddr, teLinkRemoteIpAddr } STATUS current DESCRIPTION "This notification is generated when a mismatch is found on a bundled link. Such mismatch can be detected for instance if one of the traffic engineering parameters is not consistent across all TE links within a bundled link (resource class, OSPF link type, etc.)." ::= { linkBundlingNotifications 1 } -- End of notifications -- Module compliance linkBundlingGroups OBJECT IDENTIFIER ::= { linkBundlingConformance 1 } linkBundlingCompliances OBJECT IDENTIFIER ::= { linkBundlingConformance 2 } linkBundlingFullModuleCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "Compliance statement for agents that support the configuration and monitoring of link bundling MIB." MODULE -- this module -- The mandatory groups have to be implemented -- by all devices supporting link bundling. However, they may all -- be supported as read-only objects in the case where automatic -- configuration is supported. MANDATORY-GROUPS { linkBundlingGroup, teLinkBandwidthGroup, componentLinkBandwidthGroup } GROUP teLinkOspfTeGroup DESCRIPTION "This group is mandatory for OSPF enabled devices." GROUP teLinkSrlgGroup DESCRIPTION "This group is mandatory for G-MPLS enabled devices." Dubuc et al. Expires November 2002 [Page 38] Internet Draft MPLS Link Bundling MIB June 21, 2002 GROUP linkBundlingNotificationGroup DESCRIPTION "This group is mandatory for equipment that support link bundling notifications." -- teLinkTable OBJECT teLinkIpAddrType SYNTAX INTEGER { unknown(0), ipv4(1), ipv6(2) } MIN-ACCESS read-only DESCRIPTION "The dns(16) address type need not be supported. The ipv4(1) and ipv6(2) address types need not be supported if numbered links are not supported. The unknown(0) address type need not be supported if unnumbered links are not supported." OBJECT teLinkIpAddr SYNTAX InetAddress (SIZE(0|4|16)) DESCRIPTION "Size of TE link IP address depends on type of TE link. TE link IP address size is zero if link is unnumbered, four if link IP address is IPv4 and sixteen if link IP address is IPv6." OBJECT teLinkRemoteIpAddr SYNTAX InetAddress (SIZE(0|4|16)) DESCRIPTION "Size of TE link IP address depends on type of TE link. TE link IP address size is zero if link is unnumbered, four if link IP address is IPv4 and sixteen if link IP address is IPv6." OBJECT teLinkMuxCapability MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkProtectionType MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } DESCRIPTION "The notReady(3) state need not be supported." Dubuc et al. Expires November 2002 [Page 39] Internet Draft MPLS Link Bundling MIB June 21, 2002 OBJECT teLinkStorageType SYNTAX INTEGER { other(1) } DESCRIPTION "Only other(1) needs to be supported." -- teLinkDescriptorTable OBJECT teLinkEncodingType MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkDescrPriority MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkMinReservableBandwidth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkMaxReservableBandwidth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkDescrRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } DESCRIPTION "The notReady(3) state need not be supported." OBJECT teLinkDescrStorageType SYNTAX INTEGER { other(1) } DESCRIPTION "Only other(1) needs to be supported." -- teLinkOspfTeTable OBJECT teLinkOspfLinkType SYNTAX INTEGER { pointToPoint(1) } MIN-ACCESS read-only DESCRIPTION "A value of multiAccess(2) need not be supported." OBJECT teLinkOspfLinkId MIN-ACCESS read-only Dubuc et al. Expires November 2002 [Page 40] Internet Draft MPLS Link Bundling MIB June 21, 2002 DESCRIPTION "Write access is not required." -- teLinkSrlgTable OBJECT srlgRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } DESCRIPTION "The notReady(3) and createAndWait(5) states need not be supported." OBJECT srlgStorageType SYNTAX INTEGER { other(1) } DESCRIPTION "Only other(1) needs to be supported." -- teLinkBandwidthTable OBJECT teLinkMaximumLspBandwidth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkBandwidthRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } DESCRIPTION "The notReady(3) and createAndWait(5) states need not be supported." OBJECT teLinkBandwidthStorageType SYNTAX INTEGER { other(1) } DESCRIPTION "Only other(1) needs to be supported." -- componentLinkTable OBJECT componentLinkMuxCapability MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT componentLinkMaxReservBandwidth MIN-ACCESS read-only DESCRIPTION "Write access is not required." Dubuc et al. Expires November 2002 [Page 41] Internet Draft MPLS Link Bundling MIB June 21, 2002 OBJECT componentLinkRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } DESCRIPTION "The notReady(3) and createAndWait(5) states need not be supported." OBJECT componentLinkStorageType SYNTAX INTEGER { other(1) } DESCRIPTION "Only other(1) needs to be supported." -- componentLinkDescriptorTable OBJECT componentLinkDescrRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } DESCRIPTION "The notReady(3) state need not be supported." OBJECT componentLinkDescrStorageType SYNTAX INTEGER { other(1) } DESCRIPTION "Only other(1) needs to be supported." -- componentLinkBandwidthTable OBJECT componentLinkMaximumLspBandwidth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT componentLinkBandwidthRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } DESCRIPTION "The notReady(3) and createAndWait(5) states need not be supported." OBJECT componentLinkBwStorageType SYNTAX INTEGER { other(1) } DESCRIPTION "Only other(1) needs to be supported." ::= { linkBundlingCompliances 1 } linkBundlingMonModuleCompliance MODULE-COMPLIANCE STATUS current Dubuc et al. Expires November 2002 [Page 42] Internet Draft MPLS Link Bundling MIB June 21, 2002 DESCRIPTION "Compliance statement for agents that support the monitoring of link bundling MIB." MODULE -- this module -- The mandatory groups have to be implemented -- by all devices supporting link bundling. However, they may all -- be supported as read-only objects in the case where manual -- configuration is unsupported. MANDATORY-GROUPS { linkBundlingGroup, teLinkBandwidthGroup, componentLinkBandwidthGroup } GROUP teLinkOspfTeGroup DESCRIPTION "This group is mandatory for OSPF enabled devices." GROUP teLinkSrlgGroup DESCRIPTION "This group is mandatory for G-MPLS enabled devices." GROUP linkBundlingNotificationGroup DESCRIPTION "This group is optional." -- teLinkTable OBJECT teLinkIpAddrType SYNTAX INTEGER { unknown(0), ipv4(1), ipv6(2) } MIN-ACCESS read-only DESCRIPTION "The dns(16) address type need not be supported. The ipv4(1) and ipv6(2) address types need not be supported if numbered links are not supported. The unknown(0) address type need not be supported if unnumbered links are not supported." OBJECT teLinkIpAddr SYNTAX InetAddress (SIZE(0|4|16)) DESCRIPTION "Size of TE link IP address depends on type of TE link. TE link IP address size is zero if link is unnumbered, four if link IP address is IPv4 and sixteen if link IP address is IPv6." OBJECT teLinkRemoteIpAddr SYNTAX InetAddress (SIZE(0|4|16)) Dubuc et al. Expires November 2002 [Page 43] Internet Draft MPLS Link Bundling MIB June 21, 2002 DESCRIPTION "Size of TE link IP address depends on type of TE link. TE link IP address size is zero if link is unnumbered, four if link IP address is IPv4 and sixteen if link IP address is IPv6." OBJECT teLinkMuxCapability MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkProtectionType MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkWorkingPriority MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkFlooding MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } MIN-ACCESS read-only DESCRIPTION "The notReady(3) state need not be supported." OBJECT teLinkStorageType SYNTAX INTEGER { other(1) } MIN-ACCESS read-only DESCRIPTION "Only other(1) needs to be supported." -- teLinkDescriptorTable OBJECT teLinkEncodingType MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkDescrPriority MIN-ACCESS read-only Dubuc et al. Expires November 2002 [Page 44] Internet Draft MPLS Link Bundling MIB June 21, 2002 DESCRIPTION "Write access is not required." OBJECT teLinkMinReservableBandwidth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkMaxReservableBandwidth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkDescrRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } MIN-ACCESS read-only DESCRIPTION "The notReady(3) state need not be supported." OBJECT teLinkDescrStorageType SYNTAX INTEGER { other(1) } MIN-ACCESS read-only DESCRIPTION "Only other(1) needs to be supported." -- teLinkOspfTeTable OBJECT teLinkOspfLinkType SYNTAX INTEGER { pointToPoint(1) } DESCRIPTION "A value of multiAccess(2) need not be supported." OBJECT teLinkOspfLinkId MIN-ACCESS read-only DESCRIPTION "Write access is not required." -- teLinkSrlgTable OBJECT srlgRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } MIN-ACCESS read-only DESCRIPTION "The notReady(3) and createAndWait(5) states need not be supported." Dubuc et al. Expires November 2002 [Page 45] Internet Draft MPLS Link Bundling MIB June 21, 2002 OBJECT srlgStorageType SYNTAX INTEGER { other(1) } MIN-ACCESS read-only DESCRIPTION "Only other(1) needs to be supported." -- teLinkBandwidthTable OBJECT teLinkMaximumLspBandwidth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT teLinkBandwidthRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } MIN-ACCESS read-only DESCRIPTION "The notReady(3) and createAndWait(5) states need not be supported." OBJECT teLinkBandwidthStorageType SYNTAX INTEGER { other(1) } MIN-ACCESS read-only DESCRIPTION "Only other(1) needs to be supported." -- componentLinkTable OBJECT componentLinkMuxCapability MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT componentLinkPreferredProtection MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT componentLinkMaxReservBandwidth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT componentLinkRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } MIN-ACCESS read-only Dubuc et al. Expires November 2002 [Page 46] Internet Draft MPLS Link Bundling MIB June 21, 2002 DESCRIPTION "The notReady(3) and createAndWait(5) states need not be supported." OBJECT componentLinkStorageType SYNTAX INTEGER { other(1) } MIN-ACCESS read-only DESCRIPTION "Only other(1) needs to be supported." -- componentLinkDescriptorTable OBJECT componentLinkEncodingType MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT componentLinkDescrPriority MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT componentLinkMinReservBandwidth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT componentLinkDescrRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } MIN-ACCESS read-only DESCRIPTION "The notReady(3) state need not be supported." OBJECT componentLinkDescrStorageType SYNTAX INTEGER { other(1) } MIN-ACCESS read-only DESCRIPTION "Only other(1) needs to be supported." -- componentLinkBandwidthTable OBJECT componentLinkMaximumLspBandwidth MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT componentLinkBandwidthRowStatus Dubuc et al. Expires November 2002 [Page 47] Internet Draft MPLS Link Bundling MIB June 21, 2002 SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } MIN-ACCESS read-only DESCRIPTION "The notReady(3) and createAndWait(5) states need not be supported." OBJECT componentLinkBwStorageType SYNTAX INTEGER { other(1) } MIN-ACCESS read-only DESCRIPTION "Only other(1) needs to be supported." ::= { linkBundlingCompliances 2 } -- Units of conformance linkBundlingGroup OBJECT-GROUP OBJECTS { teLinkIpAddrType, teLinkIpAddr, teLinkRemoteIpAddr, teLinkMetric, teLinkMuxCapability, teLinkProtectionType, teLinkWorkingPriority, teLinkResourceClass, teLinkIncomingIfId, teLinkOutgoingIfId, teLinkFlooding, teLinkRowStatus, teLinkStorageType, teLinkEncodingType, teLinkDescrPriority, teLinkMinReservableBandwidth, teLinkMaxReservableBandwidth, teLinkDescrRowStatus, teLinkDescrStorageType, componentLinkMuxCapability, componentLinkPreferredProtection, componentLinkCurrentProtection, componentLinkRowStatus, componentLinkStorageType, linkBundlingNotifEnable } STATUS current DESCRIPTION "Collection of objects needed for the monitoring of Dubuc et al. Expires November 2002 [Page 48] Internet Draft MPLS Link Bundling MIB June 21, 2002 resources associated with TE links." ::= { linkBundlingGroups 1 } teLinkOspfTeGroup OBJECT-GROUP OBJECTS { teLinkOspfLinkType, teLinkOspfLinkId } STATUS current DESCRIPTION "Collection of objects needed for the OSPF traffic engineering parameters of TE links." ::= { linkBundlingGroups 2 } teLinkSrlgGroup OBJECT-GROUP OBJECTS { srlgRowStatus, srlgStorageType } STATUS current DESCRIPTION "Collection of objects needed for the monitoring of SRLG resources associated with TE links." ::= { linkBundlingGroups 3 } teLinkBandwidthGroup OBJECT-GROUP OBJECTS { teLinkUnreservedBandwidth, teLinkMaximumLspBandwidth, teLinkBandwidthRowStatus, teLinkBandwidthStorageType } STATUS current DESCRIPTION "Collection of objects needed for the monitoring of the priority-based bandwidth resources associated with TE links and component links." ::= { linkBundlingGroups 4 } componentLinkBandwidthGroup OBJECT-GROUP OBJECTS { componentLinkEncodingType, componentLinkDescrPriority, componentLinkMinReservBandwidth, componentLinkMaxReservBandwidth, componentLinkDescrRowStatus, componentLinkDescrStorageType, componentLinkUnreservedBandwidth, componentLinkMaximumLspBandwidth, Dubuc et al. Expires November 2002 [Page 49] Internet Draft MPLS Link Bundling MIB June 21, 2002 componentLinkBandwidthRowStatus, componentLinkBwStorageType } STATUS current DESCRIPTION "Collection of objects needed for the monitoring of bandwidth parameters associated with component links." ::= { linkBundlingGroups 5 } linkBundlingNotificationGroup NOTIFICATION-GROUP NOTIFICATIONS { linkBundleMismatch } STATUS current DESCRIPTION "Set of notifications implemented in this module. None is mandatory." ::= { linkBundlingGroups 6 } -- End of LINK-BUNDLING-MIB END 11. Security Considerations It is clear that this MIB is potentially useful for monitoring of link bundling enabled devices. This MIB can also be used for confi- guration of certain objects, and anything that can be configured can be incorrectly configured, with potentially disastrous results. At this writing, no security holes have been identified beyond those that SNMP Security [RFC2571] is itself intended to address. These relate to primarily controlled access to sensitive information and the ability to configure a device - or which might result from opera- tor error, which is beyond the scope of any security architecture. There are a number of management objects defined in this MIB which 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 environ- ment without proper protection can have a negative effect on network operations. The use of SNMP Version 3 is recommended over prior ver- sions, for configuration control, as its security model is improved. SNMPv1 or SNMPv2 are by themselves not a secure environment. Even if the network itself is secure (for example by using IPSec [RFC2401]), 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 Dubuc et al. Expires November 2002 [Page 50] Internet Draft MPLS Link Bundling MIB June 21, 2002 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 [RFC2574] and the View-based Access Control [RFC2575] is recommended. It is then a customer/user respon- sibility 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. There are a number of managed objects in this MIB that may contain information that may be sensitive from a business perspective, in that they can be used to derive the network topology, e.g. list of nodes and their IP address (teLinkTable), list of component links (componentLinkTable) in addition to usage of network resources (teL- inkBandwidthTable and componentLinkBandwidthTable). Allowing uncon- trolled access to these objects could result in malicious and unwanted disruptions of network traffic, incorrect network configura- tion or theft of competitive business information. There are no objects that are particularly sensitive in their own right, such as passwords or monetary amounts. 12. Acknowledgments The general structure of this draft has been modeled around draft- ietf-mpls-lsr-mib-06.txt. The authors would like to acknowlegde the contribution of Dmitry Ryumkin. 13. References [RFC1155] Rose, M., and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP- based Internets", STD 16, RFC 1155, May 1990. [RFC1157] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple Network Management Protocol", STD 15, RFC 1157, May 1990. [RFC1212] Rose, M., and K. McCloghrie, "Concise MIB Definitions", STD 16, RFC 1212, March 1991. [RFC1215] M. Rose, "A Convention for Defining Traps for use with the SNMP", RFC 1215, March 1991. [RFC1901] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Introduction to Community-based SNMPv2", RFC 1901, January 1996. Dubuc et al. Expires November 2002 [Page 51] Internet Draft MPLS Link Bundling MIB June 21, 2002 [RFC1905] 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. [RFC1906] 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. [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [RFC2401] Kent, S., and Atkinson, R., "Security Architecture for the Internet Protocol", RFC 2401, November 1998. [RFC2570] Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction to Version 3 of the Internet-standard Network Management Framework", RFC 2570, April 1999. [RFC2571] Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for Describing SNMP Management Frameworks", RFC 2571, April 1999. [RFC2572] Case, J., Harrington D., Presuhn R., and B. Wijnen, "Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)", RFC 2572, April 1999. [RFC2573] Levi, D., Meyer, P., and B. Stewart, "SNMPv3 Applications", RFC 2573, April 1999. [RFC2574] Blumenthal, U., and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 2574, April 1999. [RFC2575] Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 2575, April 1999. [RFC2578] 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. [RFC2579] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M., and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999. Dubuc et al. Expires November 2002 [Page 52] Internet Draft MPLS Link Bundling MIB June 21, 2002 [RFC2580] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M., and S. Waldbusser, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999. [RFC2863] McCloghrie, K., and Kastenholtz, F., "The Interfaces Group MIB", RFC 2863, June 2000. [Assigned] Reynolds, J., and J. Postel, "Assigned Numbers", RFC 1700, October 1994. See also: http://www.iana.org/assignments/smi-numbers [BUNDLING] Kompella, K., Rekhter, Y., and Berger, L., "Link Bundling in MPLS Traffic Engineering", Internet Draft , May 2002. [GMPLS] Ashwood-Smith, P., Banarjee, A., Berger, L., Bernstein, G., Drake, J., Fan, Y., Kompella, K., Mannie, E., Lang, J., Rajagopalan, B., Rekhter, Y., Saha, D., Sharma, V., Swallow, G., and Tang, Z., "Generalized MPLS Signaling Functional Description", Internet Draft , April 2002. [GMPLS-ARCH] Mannie, E., Ashwood-Smith, P., Awduche, D., Banarjee, A., Basak, D., Berger, L., Bernstein, G., Dharanikota, S., Drake, J., Fan, Y., Fedyk, D., Grammel, G., Guo, D., Kompella, K., Kullberg, A., Lang, J., Liaw, F., Nadeau, T., Ong, L., Papadimitriou, D., Pendarakis, D., Rajagopalan, B., Rekhter, Y., Saha, D., Sandick, H., Sharma, V., Swallow, G., Tang, Z., Yates, J., Young, G., Yu, J., Zinin, A., "Generalized Multi-Protocol Label Switching (GMPLS) Architecture", Internet Draft , March 2002. [GMPLS-OSPF] Kompella, K., Rekhter, Y., Banerjee, A. et al, "OSPF Extensions in Support of Generalized MPLS", Internet Draft , May 2002. [IANAFamily] Internet Assigned Numbers Authority (IANA), ADDRESS FAMILY NUMBERS, (http://www.isi.edu/in- notes/iana/assignements/address-family-numbers), for MIB see: Dubuc et al. Expires November 2002 [Page 53] Internet Draft MPLS Link Bundling MIB June 21, 2002 ftp://ftp.isi.edu/mib/ianaaddressfamilynumbers.mib [LMP] Lang, J., Mitra, K., Drake, J., Kompella, K., Rekhter, Y., Berger, L., Rajagopalan, B., Basak, D., Sandick, H., Zinin, A., and Banarjee, A., "Link Management Protocol", Internet Draft , March 2002. [OSPF] Katz, D., Yeung, D. "Traffic Engineering Extensions to OSPF", Internet Draft , October 2001. 14. Authors' Addresses Martin Dubuc Thomas D. Nadeau Meriton Networks Cisco Systems, Inc. 3026 Solandt Road 300 Apollo Drive Kanata, ON, CANADA K2K 2A5 Chelmsford, MA 01824 Phone: +1-613-270-9279 x253 Phone: +1-978-244-3051 Email: martin.dubuc@meriton.com Email: tnadeau@cisco.com Sudheer Dharanikota Jonathan P. Lang Nayna Networks, Inc. Calient Networks, Inc. 157 Topaz Street 25 Castilian Drive Milipitas, CA 95035 Goleta, CA 93117 Phone: +1-408-956-8000 x357 Email: jplang@calient.net Email: sudheer@nayna.com 15. Full Copyright Statement Copyright (C) The Internet Society (2001). All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this docu- ment itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of develop- ing Internet standards in which case the procedures for copyrights Dubuc et al. Expires November 2002 [Page 54] Internet Draft MPLS Link Bundling MIB June 21, 2002 defined in the Internet Standards process must be followed, or as required to translate it into languages other than English. The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns. This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Dubuc et al. Expires November 2002 [Page 55]