Network Working Group Cheenu Srinivasan Internet Draft Tachion Networks, Inc. Expires: September 2000 Arun Viswanathan Force10 Networks Thomas D. Nadeau Cisco Systems, Inc. MPLS Traffic Engineering Management Information Base Using SMIv2 draft-ietf-mpls-te-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 RFC2026. 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 Srinivasan, et al. Expires September 2000 [Page 1] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 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. Abstract This memo defines an experimental portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for Multi-Protocol Label Switching (MPLS) [MPLSArch] [MPLSFW] based traffic engineering. 1. Introduction This memo defines an experimental 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 a Multi-Protocol Label Switching (MPLS) [MPLSArch][MPLSFW] based traffic engineering. This MIB should be used in conjunction with the companion document [LSRMIB] for MPLS based traffic engineering configuration and management. Srinivasan, et al. Expires September 2000 [Page 2] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 Comments should be made directly to the MPLS mailing list at mpls@uu.net. This memo does not, in its draft form, specify a standard for the Internet community. 2. Terminology This document uses terminology from the MPLS architecture document [MPLSArch] and MPLS Label Switch Router MIB [LSRMIB]. Some frequently used terms are described next. An explicitly routed LSP (ERLSP) is referred to as an MPLS tunnel. It consists of one in-segment and/or one out-segment at the ingress/egress LSRs, each segment being associated with one MPLS interface. These are also referred to as tunnel segments. Additionally, at an intermediate LSR, we model a connection as consisting of one or more in-segments and/or one or more out-segments. The binding or interconnection between in-segments and out-segments in performed using a cross-connect. These objects are defined in the MPLS Label Switch Router MIB [LSRMIB]. 3. The SNMP Management Framework The SNMP Management Framework presently consists of five major components: Srinivasan, et al. Expires September 2000 [Page 3] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 - An overall architecture, described in RFC 2271 [SNMPArch]. - 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 RFC 1155 [SMIv1], RFC 1212 [SNMPv1MIBDef] and RFC 1215 [SNMPv1Traps]. The second version, called SMIv2, is described in RFC 1902 [SMIv2], RFC 1903 [SNMPv2TC] and RFC 1904 [SNMPv2Conf]. - Message protocols for transferring management information. The first version of the SNMP message protocol is called SNMPv1 and described in RFC 1157 [SNMPv1]. A second version of the SNMP message protocol, which is not an Internet standards track protocol, is called SNMPv2c and described in RFC 1901 [SNMPv2c] and RFC 1906 [SNMPv2TM]. The third version of the message protocol is called SNMPv3 and described in RFC 1906 [SNMPv2TM], RFC 2272 [SNMPv3MP] and RFC 2574 [SNMPv3USM]. - Protocol operations for accessing management information. The first set of protocol operations and associated PDU formats is described in RFC 1157 [SNMPv1]. A second set of protocol operations and associated PDU formats is described in RFC 1905 [SNMPv2PO]. - A set of fundamental applications described in RFC Srinivasan, et al. Expires September 2000 [Page 4] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 2273 [SNMPv3App] and the view-based access control mechanism described in RFC 2575 [SNMPv3VACM]. 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. 3.1. Object Definitions Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the subset of Abstract Syntax Notation One (ASN.1) defined in the SMI. In particular, each object type is named by an OBJECT IDENTIFIER, an administratively assigned name. The object type together with an object instance serves to uniquely identify a specific instantiation of the object. For human convenience, we often use a textual string, termed the descriptor, to also refer to the object type. Srinivasan, et al. Expires September 2000 [Page 5] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 4. Feature Checklist The MPLS traffic engineering MIB is designed to satisfy the following requirements and constraints. - The MIB must support the configuration of point-to- point unidirectional tunnels. - The MIB should be able to support the configuration of point-to-point bi-directional tunnels. - The MIB should be able to support the configuration of multi-point-to-point unidirectional tunnels. - MPLS tunnels need not be interfaces, but it should be possible to configure a tunnel as an interface. - The MIB should be able to support both manually configured MPLS tunnels as well as those set up via any MPLS signaling protocol. - It should be possible to support persistent as well as non-persistent tunnels. 5. Outline Traffic engineering support for MPLS tunnels requires the following configuration. Srinivasan, et al. Expires September 2000 [Page 6] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 - Setting up MPLS tunnels along with appropriate configuration parameters. - Configuring tunnel loose and strict source routed hops. These actions may need to be accompanied with corresponding actions using [LSRMIB] to establish and configure tunnel segments, if this is done manually. Also, the in-segment and out-segment performance tables, mplsInSegmentPerfTable and mplsOutSegmentPerfTable [LSRMIB], should be used to determine performance of the tunnels and tunnel segments. 5.1. Summary of Traffic Engineering MIB The MIB objects for performing these actions consist of the following tables. - Tunnel table (mplsTunnelTable) for setting up MPLS tunnels. - Tunnel hop table (mplsTunnelHopTable) for configuring strict and loose source routed MPLS tunnels hops. - Resource table (mplsTunnelResourceTable) for setting up the tunnel resources. - Tunnel Actual Route Table (mplsTunnelARHopTable) for viewing the actual route used by the tunnel. Srinivasan, et al. Expires September 2000 [Page 7] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 These tables are described in the subsequent sections. 6. Brief Description of MIB Objects The objects described in this section support the functionality described in documents [RSVPTun][CR- LDP]. The tables support both manually configured and signaled tunnels. Moreover, they provide the capability to associate two unidirectional tunnels to form a single bi-directional tunnel. 6.1. mplsTunnelTable The mplsTunnelTable allows new MPLS tunnels to be created between an MPLS LSR and a remote endpoint, and existing tunnels to be reconfigured or removed. Note that we only support point-to-point tunnel segments, although multi-point-to-point and point-to-multi-point connections are supported by an LSR acting as a cross- connect. Each MPLS tunnel can thus have one out- segment originating at an LSR and/or one in-segment terminating at that LSR. mplsTunnelTable does not define the in and out segments forming the tunnel. Instead, these are defined by creating rows in the in-segment and out- segment tables, defining relationships in the cross- connect table and referring to these rows in the mplsTunnelTable using a cross-connect index, Srinivasan, et al. Expires September 2000 [Page 8] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTunnelXCID. These segment and cross-connect related objects are defined in [LSRMIB]. 6.2. mplsTunnelHopTable mplsTunnelHopTable is used to indicate the hops, strict or loose, for an MPLS tunnel defined in mplsTunnelTable, when it is established via signaling. Each row in this table is indexed primarily by the same index mplsTunnelIndex as the row of the corresponding tunnel in mplsTunnelTable. Each row also has a secondary index, mplsTunnelHopIndex, corresponding to the next hop of this tunnel. The scalar mplsTunnelMaxHops indicates the maximum number of hops that can be specified on each tunnel supported by this LSR. 6.3. mplsTunnelResourceTable mplsTunnelResourceTable is used to indicate the resources required for a tunnel. Multiple tunnels may share the same resource by pointing to the same entry in this table. Tunnels that do not share resources must point to separate entries in this table. 6.4. mplsTunnelARHopTable mplsTunnelARHopTable is used to indicate the actual route taken by a tunnel. This table is particularly Srinivasan, et al. Expires September 2000 [Page 9] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 useful in cases where tunnel hops are loosely routed. This table will allow the user to see the actual path taken by the tunnel through the network. Support of this tunnel is dependent upon the MPLS signaling protocols providing this information. 7. Example of Tunnel Setup This section contains an example of which MIB objects should be modified if one would like to create loosely routed, unidirectional traffic engineered tunnel, which spans two hops of a simple network. Note that these objects should be created on the "head-end" LSR. In mplsTunnelTable: { mplsTunnelIndex = 1, mplsTunnelInstance = 1, mplsTunnelName = "My first tunnel ", mplsTunnelDescr = "Here to there", mplsTunnelIsIf = true (1), mplsTunnelIfIndex = 12, mplsTunnelDirection = in (1), mplsTunnelXCIndex = 15, mplsTunnelSignallingProto = none (1), mplsTunnelLocalCookie = 123.123.123.1, mplsTunnelRemoteCookie = 123.123.123.1, mplsTunnelIsMergeable = false (1), mplsTunnelSetupPrio = 0, mplsTunnelHoldingPrio = 0, Srinivasan, et al. Expires September 2000 [Page 10] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTunnelIsPersistent = false (1), mplsTunnelSessionAttributes = 0, mplsTunnelOwner = snmp (1), mplsTunnelLocalProtectInUse = false (0), mplsTunnelResourceEntryIndex= 5, mplsTunnelInstancePriority = 1, mplsTunnelRowStatus = createAndGo (4) } In mplsTunnelResourceTable: { mplsTunnelResourceIndex = 5, mplsTunnelInMaxRate = 100, mplsTunnelInMeanRate = 100, mplsTunnelInMaxBurstSize = 100, mplsTunnelOutMaxRate = 100, mplsTunnelOutMeanRate = 100, mplsTunnelOutMaxBurstSize = 100, mplsTunnelResourceRowStatus = createAndGo (4) } The next two instances of mplsTunnelHopEntry are used to denote the hops this tunnel will take across the network. Note that mplsTunnelIndex, mplsTunnelInstance, and mplsTunnelHopIndex are used to index these objects. For the purposes of this example, all entries in the MplsTunnelHopTable will use the index of 1, which was defined for the mpslTunnelEntry above. The following denotes the beginning of the network, or the first hop. We have used the fictitious LSR Srinivasan, et al. Expires September 2000 [Page 11] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 identified by "123.123.125.1" as our example head-end router. In mplsTunnelHopTable: { mplsTunnelHopIndex = 1, mplsTunnelHopAddrType = 1, mplsTunnelHopIpv4Addr = 123.123.125.1, mplsTunnelHopIpv4PrefixLen = 9, mplsTunnelHopStrictOrLoose = loose (2), mplsTunnelHopRowStatus = createAndGo (4) } The following denotes the end of the network, or the last hop in our example. We have used the fictitious LSR identified by "123.123.126.1" as our end router. In mplsTunnelHopTable: { mplsTunnelHopIndex = 2, mplsTunnelHopAddrType = 1, mplsTunnelHopIpv4Addr = 123.123.126.1, mplsTunnelHopIpv4PrefixLen = 9, mplsTunnelHopStrictOrLoose = loose (2), mplsTunnelHopOwner = snmp (1), mplsTunnelHopRowStatus = createAndGo (4) } 7.1. Support of the MPLS Layer by ifTable Some specific interpretations of ifTable for the MPLS Srinivasan, et al. Expires September 2000 [Page 12] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 layer follow. Object Use for the MPLS layer. ifIndex Each MPLS interface is represented by an ifEntry. ifDescr Description of the MPLS interface. ifType The value that is allocated for MPLS is . ifSpeed The total bandwidth in bits per second for use by the MPLS layer. ifPhysAddress Unused. ifAdminStatus See [IFMIB]. ifOperStatus Assumes the value down(2) if the MPLS layer is down. ifLastChange See [IFMIB]. ifInOctets The number of received octets over the interface, i.e., the number of received, octets received as labeled packets. ifOutOctets The number of transmitted octets over the interface, i.e., the number of octets transmitted as labeled Srinivasan, et al. Expires September 2000 [Page 13] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 packets. ifInErrors The number of labeled packets dropped due to uncorrectable errors. ifInUnknownProtos The number of received packets discarded during packet header validation, including packets with unrecognized label values. ifOutErrors See [IFMIB]. ifName Textual name (unique on this system) of the interface or an octet string of zero length. ifLinkUpDownTrapEnable Default is disabled (2). ifConnectorPresent Set to false (2). ifHighSpeed See [IFMIB]. ifHCInOctets The 64-bit version of ifInOctets; supported if required by the compliance statements in [IFMIB]. ifHCOutOctets The 64-bit version of ifOutOctets; supported if required by the compliance statements in [IFMIB]. ifAlias The non-volatile 'alias' name for the interface as specified by a network manager. Srinivasan, et al. Expires September 2000 [Page 14] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 8. MPLS Traffic Engineering MIB Definitions MPLS-TE-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, experimental, Integer32, Counter32, Counter64, Gauge32, IpAddress FROM SNMPv2-SMI MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP FROM SNMPv2-CONF TEXTUAL-CONVENTION, TruthValue, RowStatus FROM SNMPv2-TC ifIndex, InterfaceIndex, InterfaceIndexOrZero FROM IF-MIB MplsBitRate, MplsBurstSize FROM MPLS-LSR-MIB; mplsTeMIB MODULE-IDENTITY LAST-UPDATED "200003031200Z" -- 3 Mar 2000 12:00:00 EST ORGANIZATION "Multiprotocol Label Switching (MPLS) Working Group" CONTACT-INFO " Cheenu Srinivasan Postal: Tachion Networks, Inc. 2 Meridian Road Eatontown, NJ 0772 Srinivasan, et al. Expires September 2000 [Page 15] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 Tel: +1 732 542 7750 x234 Email: cheenu@tachion.com Arun Viswanathan Postal: Force10 Networks 1440 McCarthy Blvd Milpitas, CA 95035 Tel: +1-408-571-3516 Email: arun@force10networks.com Thomas D. Nadeau Postal: Cisco Systems, Inc. 250 Apollo Drive Chelmsford, MA 01824 Tel: +1-978-244-3051 Email: tnadeau@cisco.com" DESCRIPTION "This MIB module contains managed object definitions for MPLS Traffic Engineering (TE) as defined in: Extensions to RSVP for LSP Tunnels, Awduche et al, Internet Draft , March 1999; Constraint-Based LSP Setup using LDP, B. Jamoussi, Internet Draft , Feb. 1999; Requirements for Traffic Engineering Over MPLS, Awduche, D., J. Malcolm, J., Agogbua, J., O'Dell, M., J. McManus, , September 1999." -- Revision history. REVISION "199907161200Z" -- 16 July 1999 12:00:00 EST Srinivasan, et al. Expires September 2000 [Page 16] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 DESCRIPTION "Initial draft version." REVISION "200003101700Z" -- 10 March 2000 17:00:00 EST DESCRIPTION "Initial version, published as RFC xxxx." ::= { experimental 95 } -- Textual Conventions. -- An MPLS label. MplsLabel ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Represents an MPLS label. Note that the contents of a label field are interpreted in an interface-type specific fashion. For example, the label carried in the MPLS shim header is 20 bits wide and the top 12 bits must be zero. The frame relay label can be either 10, 17 or 23 bits wide depending on the size of the DLCI field size and the top 22, 15, or 9 bits must be zero, respectively. For an ATM interface, the lowermost 16 bits are interpreted as the VCI, the next 8 bits as the VPI and the remaining bits must be zero. Also note the permissible label values are also a function of the interface type. For example, the value 3 has special semantics in the control plane for an MPLS shim header label and is not a valid label Srinivasan, et al. Expires September 2000 [Page 17] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 value in the data path." REFERENCE "1. MPLS Label Stack Encoding, Rosen et al, draft- ietf-mpls-label-encaps-04.txt, April 1999. 2. Use of Label Switching on Frame Relay Networks, Conta et al, draft-ietf-mpls-fr- 03.txt, Nov. 1998." SYNTAX Integer32 MplsTunnelIndex ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Primary index into mplsTunnelTable." SYNTAX INTEGER (0..65535) MplsTunnelInstance ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Instance of the tunnel; secondary index into mplsTunnelTable." SYNTAX INTEGER (0..65535) MplsTunnelCookie ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "A globally unique identifier that is assigned to each ERLSP. This is assigned at the head end of the ERLSP and can be used by all LSRs to identify this ERLSP. At the head end this cookie is maintained in the tunnel table as mplsTunnelLocalCookie. For signaled tunnels this cookie is piggybacked by the signaling Srinivasan, et al. Expires September 2000 [Page 18] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 protocol to the remote end where the cookie is stored in the remote LSR's tunnel table as mplsTunnelRemoteCookie for the tunnel. For creating bi-directional tunnels the cookie is used to associate the two unidirectional ERLSPs as belonging to the same tunnel. It is recommended that the cookie value be assigned by concatenating the head-end LSR's IP address with the tunnel index. For IPv4 addresses this results in a 6-octet long cookie." SYNTAX OCTET STRING (SIZE (0..255)) Ipv6Address ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "IPv6 address." SYNTAX OCTET STRING (SIZE(16)) -- Top level components of this MIB. -- tables, scalars mplsTeObjects OBJECT IDENTIFIER ::= { mplsTeMIB 1 } -- traps mplsTeNotifications OBJECT IDENTIFIER ::= { mplsTeMIB 2 } -- conformance mplsTeConformance OBJECT IDENTIFIER ::= { mplsTeMIB 3 } Srinivasan, et al. Expires September 2000 [Page 19] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 -- MPLS tunnel table. mplsTunnelIndexNext OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the next appropriate value to be used for mplsTunnelIndex when creating entries in the mplsTunnelTable. If the number of unassigned entries is exhausted, this object will take on the value of 0. To obtain the mplsTunnelIndex value for a new entry, the manager must first issue a management protocol retrieval operation to obtain the current value of this object. The agent should modify the value to reflect the next unassigned index after each retrieval operation. After a manager retrieves a value the agent will determine through its local policy when this index value will be made available for reuse." ::= { mplsTeObjects 1 } mplsTunnelTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsTunnelEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The mplsTunnelTable allows new MPLS tunnels to be created between an LSR and a remote endpoint, Srinivasan, et al. Expires September 2000 [Page 20] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 and existing tunnels to be reconfigured or removed. Note that only point-to-point tunnel segments are supported, although multi-point-to- point and point-to-multi-point connections are supported by an LSR acting as a cross-connect. Each MPLS tunnel can thus have one out-segment originating at this LSR and/or one in-segment terminating at this LSR." ::= { mplsTeObjects 2 } mplsTunnelEntry OBJECT-TYPE SYNTAX MplsTunnelEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents an MPLS tunnel. An entry can be created by a network administrator or by an SNMP agent as instructed by an MPLS signaling protocol. Whenever a new entry is created with mplsTunnelIsIf set to true(1), then a corresponding entry is created in ifTable as well (see RFC 2233). The ifType of this entry is mplsTunnel(150)." REFERENCE "1. RFC 2233 - The Interfaces Group MIB using SMIv2, McCloghrie, K., and F. Kastenholtz, Nov. 1997 2. RFC 1700 - Assigned Numbers, Reynolds, J. and J. Postel, Oct. 1994" INDEX { mplsTunnelIndex, mplsTunnelInstance } ::= { mplsTunnelTable 1 } Srinivasan, et al. Expires September 2000 [Page 21] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 MplsTunnelEntry ::= SEQUENCE { mplsTunnelIndex MplsTunnelIndex, mplsTunnelInstance MplsTunnelInstance, mplsTunnelName DisplayString, mplsTunnelDescr DisplayString, mplsTunnelIsIf TruthValue, mplsTunnelIfIndex InterfaceIndexOrZero, mplsTunnelDirection INTEGER, mplsTunnelXCIndex Integer32, mplsTunnelSignallingProto INTEGER, mplsTunnelLocalCookie MplsTunnelCookie, mplsTunnelRemoteCookie MplsTunnelCookie, mplsTunnelSetupPrio INTEGER, mplsTunnelHoldingPrio INTEGER, mplsTunnelSessionAttributes INTEGER, mplsTunnelOwner INTEGER, mplsTunnelResourceEntryIndex INTEGER, mplsTunnelInstancePriority Integer32, mplsTunnelAdminStatus INTEGER, mplsTunnelOperStatus INTEGER, mplsTunnelRowStatus RowStatus } mplsTunnelIndex OBJECT-TYPE SYNTAX MplsTunnelIndex MAX-ACCESS read-create STATUS current DESCRIPTION "Uniquely identifies this row." ::= { mplsTunnelEntry 1 } Srinivasan, et al. Expires September 2000 [Page 22] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTunnelInstance OBJECT-TYPE SYNTAX MplsTunnelIndex MAX-ACCESS read-create STATUS current DESCRIPTION "Uniquely identifies an instance of a tunnel. It is useful to identify multiple instances of tunnels for the purposes of backup and parallel tunnels." ::= { mplsTunnelEntry 2 } mplsTunnelName OBJECT-TYPE SYNTAX DisplayString MAX-ACCESS read-create STATUS current DESCRIPTION "The canonical name assigned to the tunnel. This name can be used to refer to the tunnel on the LSR’s console port. If mplsTunnelIsIf is set to true then the ifName of the interface corresponding to this tunnel should have a value equal to mplsTunnelName. Also see the description of ifName in RFC 2233." REFERENCE "RFC 2233 - The Interfaces Group MIB using SMIv2, McCloghrie, K., and F. Kastenholtz, Nov. 1997" ::= { mplsTunnelEntry 3 } mplsTunnelDescr OBJECT-TYPE SYNTAX DisplayString MAX-ACCESS read-create STATUS current Srinivasan, et al. Expires September 2000 [Page 23] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 DESCRIPTION "A textual string containing information about the tunnel. If there is no description this object contains a zero length string." ::= { mplsTunnelEntry 4 } mplsTunnelIsIf OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "Denotes whether or not this tunnel corresponds to an interface represented in the interfaces group table. Note that if this variable is set to true then the ifName of the interface corresponding to this tunnel should have a value equal to mplsTunnelName. Also see the description of ifName in RFC 2233." REFERENCE "RFC 2233 - The Interfaces Group MIB using SMIv2, McCloghrie, K., and F. Kastenholtz, Nov. 1997" DEFVAL { false } ::= { mplsTunnelEntry 5 } mplsTunnelIfIndex OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-only STATUS current DESCRIPTION "If mplsTunnelIsIf is set to true, then this value contains the LSR-assigned ifIndex which corresponds to an entry in the interfaces table. Srinivasan, et al. Expires September 2000 [Page 24] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 Otherwise this variable should contain the value of zero indicating that a valid ifIndex was not assigned to this tunnel interface." REFERENCE "RFC 2233 - The Interfaces Group MIB using SMIv2, McCloghrie, K., and F. Kastenholtz, Nov. 1997" ::= { mplsTunnelEntry 6 } mplsTunnelDirection OBJECT-TYPE SYNTAX INTEGER { in(1), out(2), in-out(3) } MAX-ACCESS read-create STATUS current DESCRIPTION "Indicates whether this tunnel is unidirectional- incoming, unidirectional-outgoing, or bi- directional." ::= { mplsTunnelEntry 7 } mplsTunnelXCIndex OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-create STATUS current DESCRIPTION "This variable represents an index into the mplsXCTable. This table identifies the segments that compose this tunnel, their characteristics, and relationships to each other." REFERENCE "Srinivasan, C., Viswanathan, A., and T. Nadeau, MPLS Label Switch Router Management Information Base Using SMIv2, Internet Draft , March 2000." Srinivasan, et al. Expires September 2000 [Page 25] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 DEFVAL { 0 } ::= { mplsTunnelEntry 8 } mplsTunnelSignallingProto OBJECT-TYPE SYNTAX INTEGER { none(1), ldp(2), rsvp(3), other(4) } MAX-ACCESS read-create STATUS current DESCRIPTION "The signaling protocol, if any, which was used to setup this tunnel." DEFVAL { none } ::= { mplsTunnelEntry 9 } mplsTunnelLocalCookie OBJECT-TYPE SYNTAX MplsTunnelCookie MAX-ACCESS read-only STATUS current DESCRIPTION "The local cookie assigned to the outgoing direction of this tunnel at this LSR." ::= { mplsTunnelEntry 10 } mplsTunnelRemoteCookie OBJECT-TYPE SYNTAX MplsTunnelCookie MAX-ACCESS read-only STATUS current DESCRIPTION "The remote cookie assigned to the incoming direction of tunnel by the remote (head-end) LSR." ::= { mplsTunnelEntry 11 } Srinivasan, et al. Expires September 2000 [Page 26] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTunnelSetupPrio OBJECT-TYPE SYNTAX INTEGER (0..7) MAX-ACCESS read-create STATUS current DESCRIPTION "Indicates the setup priority of this tunnel." REFERENCE "1. Extensions to RSVP for LSP Tunnels, Awduche et al, Internet Draft , March 1999., 2. Constraint-Based LSP Setup using LDP, Jamoussi, Internet Draft , Feb. 1999." ::= { mplsTunnelEntry 12 } mplsTunnelHoldingPrio OBJECT-TYPE SYNTAX INTEGER (0..7) MAX-ACCESS read-create STATUS current DESCRIPTION "Indicates the holding priority for this tunnel." REFERENCE "1. Extensions to RSVP for LSP Tunnels, Awduche et al, Internet Draft , March 1999. 2. Constraint-Based LSP Setup using LDP, B. Jamoussi, Internet Draft , Feb. 1999." ::= { mplsTunnelEntry 13 } mplsTunnelSessionAttributes OBJECT-TYPE Srinivasan, et al. Expires September 2000 [Page 27] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 SYNTAX BITS { ingressMayReroute (0), mergingPermitted (1), isPersistent (2), localProtectionAvailable (3), isPinned (4) } MAX-ACCESS read-create STATUS current DESCRIPTION "This bitmask indicates optional session values for this tunnel. The following describes these bitfields: fastReroute: This flag indicates that the tunnel ingress node may choose to reroute this tunnel without tearing it down. mergingPermitted: This flag permits transit routers to merge this session with other RSVP sessions for the purpose of reducing resource overhead on downstream transit routers, thereby providing better network scalability. isPersistent: Indicates whether this tunnel should be restored automatically after a failure occurs. localProtectionAvailable: This flag permits transit routers to use a local repair mechanism which may result in violation of the explicit routing of this tunnel. When a fault is Srinivasan, et al. Expires September 2000 [Page 28] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 det4ected on an adjacent downstream link or node, a transit router can reroute traffic for fast service restoration. isPinned: This flag Indicates whether the loose- routed hops of this tunnel are to be pinned." REFERENCE "Extensions to RSVP for LSP Tunnels, Awduche et al, Internet Draft , March 1999." ::= { mplsTunnelEntry 14 } mplsTunnelOwner OBJECT-TYPE SYNTAX INTEGER { snmp (1), ldp (2), rsvp (3), policyAgent (4), other (5) } MAX-ACCESS read-create STATUS current DESCRIPTION "Indicates which protocol created and is responsible for managing this tunnel." ::= { mplsTunnelEntry 15 } mplsTunnelResourceEntryIndex OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION Srinivasan, et al. Expires September 2000 [Page 29] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 "Indicates which entry from the mplsTunnelResourceTable is currently in use by this tunnel." ::= { mplsTunnelEntry 16 } mplsTunnelInstancePriority OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "This value indicates which priority, in descending order with 0 indicating the lowest priority, within a group of tunnel instances. A group of tunnel instances is defined as a set of tunnels with the same mplsTunnelIndex in this table, but with a different mplsTunnelInstance. Tunnel group priorities are used to denote the priority at which particular a tunnel instance will supercede another. Instances of tunnels containing the same mplsTunnelInstancePriority will be used for load sharing." ::= { mplsTunnelEntry 17 } mplsTunnelAdminStatus OBJECT-TYPE SYNTAX INTEGER { up(1), -- ready to pass packets down(2), testing(3) -- in some test mode } MAX-ACCESS read-create STATUS current DESCRIPTION Srinivasan, et al. Expires September 2000 [Page 30] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 "Indicates the desired operational status of this tunnel." ::= { mplsTunnelEntry 18 } mplsTunnelOperStatus OBJECT-TYPE SYNTAX INTEGER { up(1), -- ready to pass packets down(2), testing(3), -- in some test mode unknown(4), -- status cannot be determined dormant(5), notPresent(6), -- some component is missing lowerLayerDown(7) -- down due to the state of -- lower layer interfaces } MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the actual operational status of this tunnel, which is typically but not limited to, a function of the state of individual segments of this tunnel." ::= { mplsTunnelEntry 19 } mplsTunnelRowStatus 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." Srinivasan, et al. Expires September 2000 [Page 31] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 ::= { mplsTunnelEntry 20 } -- End of mplsTunnelTable -- Begin of mplsTunnelResourceTable mplsTunnelResourceIndexNext OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the next appropriate value to be used for mplsTunnelResourceIndex when creating entries in the mplsTunnelResourceTable. If the number of unassigned entries is exhausted, this object will take on the value of 0. To obtain the mplsTunnelResourceIndex value for a new entry, the manager must first issue a management protocol retrieval operation to obtain the current value of this object. The agent should modify the value to reflect the next unassigned index after each retrieval operation. After a manager retrieves a value the agent will determine through its local policy when this index value will be made available for reuse." ::= { mplsTeObjects 3 } mplsTunnelResourceTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsTunnelResourceEntry MAX-ACCESS not-accessible STATUS current Srinivasan, et al. Expires September 2000 [Page 32] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 DESCRIPTION "The mplsTunnelResourceTable allows a manager to specify which resources are desired for an MPLS tunnel. This table also allows several tunnels to point to a single entry in this table, implying that these tunnels should share resources." ::= { mplsTeObjects 4 } mplsTunnelResourceEntry OBJECT-TYPE SYNTAX MplsTunnelResourceEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents a set of resources for an MPLS tunnel. An entry can be created by a network administrator or by an SNMP agent as instructed by any MPLS signaling protocol." INDEX { mplsTunnelResourceIndex } ::= { mplsTunnelResourceTable 1 } MplsTunnelResourceEntry ::= SEQUENCE { mplsTunnelResourceIndex Unsigned32, mplsTunnelResourceInMaxRate MplsBitRate, mplsTunnelResourceInMeanRate MplsBitRate, mplsTunnelResourceInMaxBurstSize MplsBurstSize, mplsTunnelResourceOutMaxRate MplsBitRate, mplsTunnelResourceOutMeanRate MplsBitRate, mplsTunnelResourceOutMaxBurstSize MplsBurstSize, mplsTunnelResourceRowStatus RowStatus Srinivasan, et al. Expires September 2000 [Page 33] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 } mplsTunnelResourceIndex OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "Uniquely identifies this row." ::= { mplsTunnelResourceEntry 1 } mplsTunnelResourceInMaxRate OBJECT-TYPE SYNTAX MplsBitRate UNITS "bits per second" MAX-ACCESS read-create STATUS current DESCRIPTION "The maximum incoming rate in bits/second. Note that setting mplsTunnelInMaxRate, mplsTunnelInMeanRate, and mplsTunnelInMaxBurstSize to 0 indicates best- effort treatment. This object is copied to an instance of mplsTSpecMaxRate in mplsTSpecTable the index of which is copied into the corresponding mplsInSegmentTSpecIndex." REFERENCE "Srinivasan, C., Viswanathan, A., and T. Nadeau, MPLS Label Switch Router Management Information Base Using SMIv2, Internet Draft , March 2000." DEFVAL { 0 } ::= { mplsTunnelResourceEntry 2 } Srinivasan, et al. Expires September 2000 [Page 34] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTunnelResourceInMeanRate OBJECT-TYPE SYNTAX MplsBitRate UNITS "bits per second" MAX-ACCESS read-create STATUS current DESCRIPTION "This object is copied into an instance of mplsTSpecMeanRate in the mplsTSpecTable. The index of this table is then copied into the corresponding mplsInSegmentTSpecIndex. When resource allocation is performed as requested by this TSpec object, it is copied into an entry in mplsTSpecTable [LSRMIB]: mplsTunnelInMeanRate to mplsTSpecMeanRate. The mplsTSpecDirection of this entry is set to ‘in’(1). The mplsTSpecIndex value of this entry is copied to mplsInSegmentTSpecIndex of the corresponding in-segment entry." REFERENCE "Srinivasan, C., Viswanathan, A., and T. Nadeau, MPLS Label Switch Router Management Information Base Using SMIv2, Internet Draft , Feb. 2000." DEFVAL { 0 } ::= { mplsTunnelResourceEntry 3 } mplsTunnelResourceInMaxBurstSize OBJECT-TYPE SYNTAX MplsBurstSize UNITS "bytes" MAX-ACCESS read-create Srinivasan, et al. Expires September 2000 [Page 35] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 STATUS current DESCRIPTION "The maximum burst size in bytes. This object is copied to mplsInSegmentMaxBurstSize of the corresponding in-segment. When resource allocation is performed as requested by this TSpec object, it is copied into an entry in mplsTSpecTable [LSRMIB]: mplsTunnelInMaxBurstSize to mplsTSpecMaxBurstSize. The mplsTSpecDirection of this entry is set to ‘in’ (1). The mplsTSpecIndex value of this entry is copied to mplsInSegmentTSpecIndex of the corresponding in- segment entry." REFERENCE "Srinivasan, C., Viswanathan, A., and T. Nadeau, MPLS Label Switch Router Management Information Base Using SMIv2, Internet Draft , March 2000." DEFVAL { 0 } ::= { mplsTunnelResourceEntry 4 } mplsTunnelResourceOutMaxRate OBJECT-TYPE SYNTAX MplsBitRate UNITS "bits per second" MAX-ACCESS read-create STATUS current DESCRIPTION "The maximum outgoing rate in bits/second. Note that setting mplsTunnelOutMaxRate to 0 indicates best-effort treatment. This object is copied to Srinivasan, et al. Expires September 2000 [Page 36] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsOutSegmentMaxRate of the corresponding out- segment. When resource allocation is performed as requested by the following outgoing TSpec object, it is copied into an entry in mplsTSpecTable [LSRMIB] as follows: mplsTunnelOutMaxRate to mplsTSpecMaxRate. Also note that the mplsTSpecDirection of this entry is set to out (2). The mplsTSpecIndex value of this entry is copied to mplsOutSegmentTSpecIndex of the corresponding out-segment entry." REFERENCE "Srinivasan, C., Viswanathan, A., and Nadeau, T., MPLS Label Switch Router Management Information Base Using SMIv2, Internet Draft , March 2000." DEFVAL { 0 } ::= { mplsTunnelResourceEntry 5 } mplsTunnelResourceOutMeanRate OBJECT-TYPE SYNTAX MplsBitRate UNITS "bits per second" MAX-ACCESS read-create STATUS current DESCRIPTION "The mean outgoing rate in bits/second. Note that setting mplsTunnelOutMeanRate to 0 indicates best-effort treatment. This object is copied to mplsOutSegmentMeanRate of the corresponding out- segment. Srinivasan, et al. Expires September 2000 [Page 37] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 When resource allocation is performed as requested by the following outgoing TSpec object, it is copied into an entry in mplsTSpecTable [LSRMIB] as follows: mplsTunnelOutMeanRate to mplsTSpecMeanRate. Also note that the mplsTSpecDirection of this entry is set to out (2). The mplsTSpecIndex value of this entry is copied to mplsOutSegmentTSpecIndex of the corresponding out-segment entry." REFERENCE "Srinivasan, C., Viswanathan, A., and T. Nadeau, MPLS Label Switch Router Management Information Base Using SMIv2, Internet Draft , March 2000." DEFVAL { 0 } ::= { mplsTunnelResourceEntry 6 } mplsTunnelResourceOutMaxBurstSize OBJECT-TYPE SYNTAX MplsBurstSize UNITS "bytes" MAX-ACCESS read-create STATUS current DESCRIPTION "The maximum burst size in bytes. This object is copied to mplsOutSegmentMaxBurstSize of the corresponding out-segment. Note that setting mplsTunnelOutMaxBurstSize to 0 indicates best- effort treatment. When resource allocation is performed as requested by the following outgoing TSpec object, it is copied into an entry in Srinivasan, et al. Expires September 2000 [Page 38] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTSpecTable [LSRMIB] as follows: mplsTunnelOutMaxBurstSize to mplsTSpecMaxBurstSize. Also note that the mplsTSpecDirection of this entry is set to out (2). The mplsTSpecIndex value of this entry is copied to mplsOutSegmentTSpecIndex of the corresponding out-segment entry." REFERENCE "Srinivasan, C., Viswanathan, A., and T. Nadeau, MPLS Label Switch Router Management Information Base Using SMIv2, Internet Draft , March 2000." DEFVAL { 0 } ::= { mplsTunnelResourceEntry 7 } mplsTunnelResourceRowStatus 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." ::= { mplsTunnelResourceEntry 8 } -- End mplsTunnelResourceTable -- Maximum number of tunnel hops supported. mplsTunnelMaxHops OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current Srinivasan, et al. Expires September 2000 [Page 39] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 DESCRIPTION "The maximum number of hops that can be specified for a tunnel on this device." ::= { mplsTeObjects 5 } -- Tunnel hop table. mplsTunnelHopTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsTunnelHopEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The mplsTunnelHopTable is used to indicate the hops, strict or loose, for an MPLS tunnel defined in mplsTunnelTable, when it is established via signaling, for the outgoing direction of the tunnel. Each row in this table is indexed primarily by the same index, mplsTunnelIndex, as the row of the corresponding tunnel in mplsTunnelTable. Each row also has a secondary index mplsTunnelHopIndex corresponding to the next hop that this row corresponds to. The first row in the table is the first hop after the origination point of the tunnel. In case we want to specify a particular interface on the originating LSR of an outgoing tunnel by which we want packets to exit the LSR, we specify this as the first hop for this tunnel in mplsTunnelHopTable." ::= { mplsTeObjects 6 } Srinivasan, et al. Expires September 2000 [Page 40] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTunnelHopEntry OBJECT-TYPE SYNTAX MplsTunnelHopEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents a tunnel hop. An entry is created by a network administrator for signaled ERLSP set up by an MPLS signaling protocol." INDEX { mplsTunnelIndex, mplsTunnelInstance, mplsTunnelHopIndex } ::= { mplsTunnelHopTable 1 } MplsTunnelHopEntry ::= SEQUENCE { mplsTunnelHopIndex Integer32, mplsTunnelHopAddrType INTEGER, mplsTunnelHopIpv4Addr IpAddress, mplsTunnelHopIpv4PrefixLen INTEGER, mplsTunnelHopIpv6Addr Ipv6Address, mplsTunnelHopIpv6PrefixLen INTEGER, mplsTunnelHopAsNumber INTEGER, mplsTunnelHopStrictOrLoose INTEGER, mplsTunnelHopRowStatus RowStatus } mplsTunnelHopIndex OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-create STATUS current DESCRIPTION "Secondary index into this table identifying the particular hop." Srinivasan, et al. Expires September 2000 [Page 41] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 ::= { mplsTunnelHopEntry 1 } mplsTunnelHopAddrType OBJECT-TYPE SYNTAX INTEGER { ipV4(1), ipV6(2), asNumber(3) } MAX-ACCESS read-create STATUS current DESCRIPTION "Denotes the address type of this tunnel hop." DEFVAL { ipV4 } ::= { mplsTunnelHopEntry 2 } mplsTunnelHopIpv4Addr OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-create STATUS current DESCRIPTION "If mplsTunnelHopAddrType is set to ipV4(1), then this value will contain the IPv4 address of this hop. This object is otherwise insignificant and should contain a value of 0." ::= { mplsTunnelHopEntry 3 } mplsTunnelHopIpv4PrefixLen OBJECT-TYPE SYNTAX INTEGER (1..32) MAX-ACCESS read-create STATUS current DESCRIPTION "If mplsTunnelHopAddrType is ipV4(1), then the prefix length for this hop's IPv4 address is contained herein. This object is otherwise insignificant and should contain a value of 0." Srinivasan, et al. Expires September 2000 [Page 42] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 ::= { mplsTunnelHopEntry 4 } mplsTunnelHopIpv6Addr OBJECT-TYPE SYNTAX Ipv6Address MAX-ACCESS read-create STATUS current DESCRIPTION "If the mplsTunnelHopAddrType is set to ipV6(2), then this variable contains the IPv6 address of this hop. This object is otherwise insignificant and should contain a value of 0." ::= { mplsTunnelHopEntry 5 } mplsTunnelHopIpv6PrefixLen OBJECT-TYPE SYNTAX INTEGER (1..128) MAX-ACCESS read-create STATUS current DESCRIPTION "If mplsTunnelHopAddrType is set to ipV6(2), this value will contain the prefix length for this hop's IPv6 address. This object is otherwise insignificant and should contain a value of 0." ::= { mplsTunnelHopEntry 6 } mplsTunnelHopAsNumber OBJECT-TYPE SYNTAX INTEGER (0..65535) MAX-ACCESS read-create STATUS current DESCRIPTION "If mplsTunnelHopAddrType is set to asNumber(3), then this value will contain the AS number of this hop. This object is otherwise insignificant Srinivasan, et al. Expires September 2000 [Page 43] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 and should contain a value of 0 to indicate this fact." ::= { mplsTunnelHopEntry 7 } mplsTunnelHopStrictOrLoose OBJECT-TYPE SYNTAX INTEGER { strict(1), loose(2) } MAX-ACCESS read-create STATUS current DESCRIPTION "Denotes whether this is tunnel hop is routed in a strict or loose fashion." ::= { mplsTunnelHopEntry 8 } mplsTunnelHopRowStatus 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." ::= { mplsTunnelHopEntry 9 } -- End of mplsTunnelHopTable -- Tunnel Actual Route Hop table. mplsTunnelARHopTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsTunnelARHopEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The mplsTunnelARHopTable is used to indicate the Srinivasan, et al. Expires September 2000 [Page 44] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 (A)ctual (R)oute hops, for an MPLS tunnel defined in mplsTunnelTable, as set up by the specified MPLS signaling protocol, for the outgoing direction of the tunnel. Each row in this table is indexed primarily by the same indices, mplsTunnelIndex and mplsTunnelInstance, as the row of the corresponding tunnel in mplsTunnelTable. Each row also has a third index mplsTunnelARHopIndex, corresponding to the next hop that this row corresponds to. The first row in the table is the first hop after the origination point of the tunnel. Please note that since the information necessary to build entries within this table are not provided by some MPLS signaling protocols; hence implementation of this table is optional. The information in this table is available from the MPLS signaling protocol after the path has been set-up." ::= { mplsTeObjects 7 } mplsTunnelARHopEntry OBJECT-TYPE SYNTAX MplsTunnelARHopEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents an currently active tunnel hop. An entry is created in this table by the MPLS signaling protocol when the active path for this tunnel is known." INDEX { mplsTunnelIndex, mplsTunnelInstance, Srinivasan, et al. Expires September 2000 [Page 45] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTunnelARHopIndex } ::= { mplsTunnelARHopTable 1 } MplsTunnelARHopEntry ::= SEQUENCE { mplsTunnelARHopIndex Integer32, mplsTunnelARHopAddrType INTEGER, mplsTunnelARHopIpv4Addr IpAddress, mplsTunnelARHopIpv4PrefixLen INTEGER, mplsTunnelARHopIpv6Addr Ipv6Address, mplsTunnelARHopIpv6PrefixLen INTEGER, mplsTunnelARHopAsNumber INTEGER } mplsTunnelARHopIndex OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "Secondary index into this table identifying the particular hop." ::= { mplsTunnelARHopEntry 1 } mplsTunnelARHopAddrType OBJECT-TYPE SYNTAX INTEGER { ipV4(1), ipV6(2), asNumber(3) } MAX-ACCESS read-only STATUS current DESCRIPTION "Denotes the address type of this tunnel hop." DEFVAL { ipV4 } ::= { mplsTunnelARHopEntry 2 } Srinivasan, et al. Expires September 2000 [Page 46] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTunnelARHopIpv4Addr OBJECT-TYPE SYNTAX IpAddress MAX-ACCESS read-only STATUS current DESCRIPTION "If mplsTunnelARHopAddrType is set to ipV4(1), then this value will contain the IPv4 address of this hop. This object is otherwise insignificant and should contain a value of 0." ::= { mplsTunnelARHopEntry 3 } mplsTunnelARHopIpv4PrefixLen OBJECT-TYPE SYNTAX INTEGER (1..32) MAX-ACCESS read-only STATUS current DESCRIPTION "If mplsTunnelARHopAddrType is ipV4(1), then the prefix length for this hop's IPv4 address is contained herein. This object is otherwise insignificant and should contain a value of 0." ::= { mplsTunnelARHopEntry 4 } mplsTunnelARHopIpv6Addr OBJECT-TYPE SYNTAX Ipv6Address MAX-ACCESS read-only STATUS current DESCRIPTION "If the mplsTunnelARHopAddrType is set to ipV6(2), then this variable contains the IPv6 address of this hop. This object is otherwise insignificant and should contain a value of 0." ::= { mplsTunnelARHopEntry 5 } Srinivasan, et al. Expires September 2000 [Page 47] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTunnelARHopIpv6PrefixLen OBJECT-TYPE SYNTAX INTEGER (1..128) MAX-ACCESS read-only STATUS current DESCRIPTION "If mplsTunnelARHopAddrType is set to ipV6(2), this value will contain the prefix length for this hop's IPv6 address. This object is otherwise insignificant and should contain a value of 0." ::= { mplsTunnelARHopEntry 6 } mplsTunnelARHopAsNumber OBJECT-TYPE SYNTAX INTEGER (0..65535) MAX-ACCESS read-only STATUS current DESCRIPTION "If mplsTunnelARHopAddrType is set to asNumber(3), then this value will contain the AS number of this hop. This object is otherwise insignificant and should contain a value of 0 to indicate this fact." ::= { mplsTunnelARHopEntry 7 } -- End of mplsTunnelARHopTable -- Notifications. mplsTunnelUp NOTIFICATION-TYPE OBJECTS { mplsTunnelIndex, mplsTunnelAdminStatus, Srinivasan, et al. Expires September 2000 [Page 48] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTunnelOperStatus } STATUS current DESCRIPTION "This notification is generated when a mplsTunnelOperStatus object for one of the configured tunnels is about to leave the down state and transition into some other state (but not into the notPresent state). This other state is indicated by the included value of mplsTunnelOperStatus." ::= { mplsTeNotifications 1 } mplsTunnelDown NOTIFICATION-TYPE OBJECTS { mplsTunnelIndex, mplsTunnelAdminStatus, mplsTunnelOperStatus } STATUS current DESCRIPTION "This notification is generated when a mplsTunnelOperStatus object for one of the configured tunnels is about to enter the down state from some other state (but not from the notPresent state). This other state is indicated by the included value of mplsTunnelOperStatus." ::= { mplsTeNotifications 2 } -- End of notifications. -- Module compliance. mplsTeGroups Srinivasan, et al. Expires September 2000 [Page 49] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 OBJECT IDENTIFIER ::= { mplsTeConformance 1 } mplsTeCompliances OBJECT IDENTIFIER ::= { mplsTeConformance 2 } mplsTeModuleCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "Compliance statement for agents that support the MPLS TE MIB." MODULE -- this module -- The mandatory group has to be implemented by all -- LSRs that originate/terminate ESLSPs/tunnels. -- In addition, depending on the type of tunnels -- supported, other groups become mandatory as -- explained below. MANDATORY-GROUPS { mplsTunnelGroup } GROUP mplsTunnelManualGroup DESCRIPTION "This group is mandatory for devices which support manual configuration of tunnels, in addition to mplsTunnelGroup. The following constraints apply: mplsTunnelSignallingProto should be at least read-only with a value of none(1)." GROUP mplsTunnelSignaledGroup DESCRIPTION Srinivasan, et al. Expires September 2000 [Page 50] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 "This group is mandatory for devices which support signaled tunnel set up, in addition to mplsTunnelGroup. The following constraints apply: mplsTunnelSignallingProto should be at least read-only returning a value of ldp(2), or rsvp(3)." GROUP mplsTunnelIsNotIntfcGroup DESCRIPTION "This group is mandatory for devices which support tunnels that are not interfaces, in addition to mplsTunnelGroup. The following constraints apply: mplsTunnelIsIf must at least be read-only returning false(1)." GROUP mplsTunnelIsIntfcGroup DESCRIPTION "This group is mandatory for devices which support tunnels that are interfaces, in addition to mplsTunnelGroup. The following constraints apply: mplsTunnelIsIf must at least be read-only returning true(2)." -- mplsTunnelTable OBJECT mplsTunnelIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelInstance Srinivasan, et al. Expires September 2000 [Page 51] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelName MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelDescr MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelIsIf MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelIfIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelDirection SYNTAX INTEGER { out(2) } MIN-ACCESS read-only DESCRIPTION "The values in(1) and in-out(3) need not be supported." OBJECT mplsTunnelXCIndex Srinivasan, et al. Expires September 2000 [Page 52] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelSignallingProto MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelLocalCookie MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelRemoteCookie MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelSetupPrio MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelHoldingPrio MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelSessionAttributes MIN-ACCESS read-only DESCRIPTION Srinivasan, et al. Expires September 2000 [Page 53] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 "Write access is not required." OBJECT mplsTunnelOwner MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelLocalProtectInUse MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelResourceEntryIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelInstancePriority MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelAdminStatus SYNTAX INTEGER { up (1), down (2) } MIN-ACCESS read-only DESCRIPTION "Only up and down states must be supported. Write access is not required." OBJECT mplsTunnelOperStatus SYNTAX INTEGER { up (1), down (2) } MIN-ACCESS read-only Srinivasan, et al. Expires September 2000 [Page 54] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 DESCRIPTION "Only up and down states must be supported. Write access is not required." OBJECT mplsTunnelRowStatus 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. Write access is not required." -- mplsTunnelHopTable OBJECT mplsTunnelHopIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelHopAddrType MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelHopIpv4Addr MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelHopIpv4PrefixLen Srinivasan, et al. Expires September 2000 [Page 55] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelHopIpv6Addr MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelHopIpv6PrefixLen MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelHopAsNumber MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelHopStrictOrLoose SYNTAX INTEGER { strict(1) } MIN-ACCESS read-only DESCRIPTION "loose(2) need not be supported. Write access is not required." OBJECT mplsTunnelHopRowStatus SYNTAX INTEGER { active(1), notInService(2), createAndGo(4), destroy(6) } MIN-ACCESS read-only DESCRIPTION "The notReady(3) and createAndWait(5) states Srinivasan, et al. Expires September 2000 [Page 56] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 need not be supported. Write access is not required." -- mplsTunnelResourceTable OBJECT mplsTunnelResourceInMaxRate MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelResourceInMeanRate MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelResourceInMaxBurstSize MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelResourceOutMaxRate MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelResourceOutMeanRate MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelResourceOutMaxBurstSize MIN-ACCESS read-only Srinivasan, et al. Expires September 2000 [Page 57] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 DESCRIPTION "Write access is not required." OBJECT mplsTunnelResourceRowStatus 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. Write access is not required." ::= { mplsTeCompliances 1 } -- Units of conformance. mplsTunnelGroup OBJECT-GROUP OBJECTS { mplsTunnelIndexNext, mplsTunnelIndex, mplsTunnelInstance, mplsTunnelName, mplsTunnelDirection, mplsTunnelXCIndex, mplsTunnelIfIndex, mplsTunnelAdminStatus, mplsTunnelOperStatus, mplsTunnelRowStatus } STATUS current DESCRIPTION "Necessary, but not sufficient, set of objects to implement tunnels. In addition, depending on the type of the tunnels supported (for example, manually configured or signaled, persistent or non-persistent, etc.), the following other Srinivasan, et al. Expires September 2000 [Page 58] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 groups defined below are mandatory: mplsTunnelManualGroup and/or mplsTunnelSignaledGroup, mplsTunnelIsNotIntfcGroup and/or mplsTunnelIsIntfcGroup." ::= { mplsTeGroups 1 } mplsTunnelManualGroup OBJECT-GROUP OBJECTS { mplsTunnelSignallingProto } STATUS current DESCRIPTION "Object(s) needed to implement manually configured tunnels." ::= { mplsTeGroups 2 } mplsTunnelSignaledGroup OBJECT-GROUP OBJECTS { mplsTunnelSignallingProto, mplsTunnelLocalCookie, mplsTunnelRemoteCookie, mplsTunnelHopIndex, mplsTunnelHopAddrType, mplsTunnelHopIpv4Addr, mplsTunnelHopIpv4PrefixLen, mplsTunnelHopIpv6Addr, mplsTunnelHopIpv6PrefixLen, mplsTunnelHopStrictOrLoose, mplsTunnelHopRowStatus, mplsTunnelResourceEntryIndex } STATUS current DESCRIPTION "Object needed to implement signaled tunnels." ::= { mplsTeGroups 3 } Srinivasan, et al. Expires September 2000 [Page 59] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 mplsTunnelIsIntfcGroup OBJECT-GROUP OBJECTS { mplsTunnelIsIf } STATUS current DESCRIPTION "Objects needed to implement tunnels that are interfaces." ::= { mplsTeGroups 4 } mplsTunnelIsNotIntfcGroup OBJECT-GROUP OBJECTS { mplsTunnelIsIf } STATUS current DESCRIPTION "Objects needed to implement tunnels that are not interfaces." ::= { mplsTeGroups 5 } mplsTeNotificationGroup NOTIFICATION-GROUP NOTIFICATIONS { mplsTunnelUp, mplsTunnelDown } STATUS current DESCRIPTION "Set of notifications implemented in this module. None is mandatory." ::= { mplsTeGroups 6 } -- End of MPLS-TE-MIB END 9. Security Considerations There are a number of management objects defined in this MIB that have a MAX-ACCESS clause of read-write Srinivasan, et al. Expires September 2000 [Page 60] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 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. It is thus important to control even GET access to these objects and possibly to even encrypt the values of these object when sending them over the network via SNMP. Not all versions of SNMP provide features for such a secure environment. SNMPv1 by itself is not a secure environment. Even if the network itself is secure (for example by using IPSec [IPSEC]), 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 [SNMPv3USM] and the View- based Access Control [SNMPv3VACM] 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. 10. Acknowledgments Srinivasan, et al. Expires September 2000 [Page 61] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 We wish to thank Eric Gray, Patrick Kerharo, and Pramod Koppol for their comments on this draft. 11. References [MPLSArch] Rosen, E., Viswanathan, A., and R. Callon, "Multiprotocol Label Switching Architecture", Internet Draft , August 1999. [MPLSFW] Callon, R., Doolan, P., Feldman, N., Fredette, A., Swallow, G., and A. Viswanathan, "A Framework for Multiprotocol Label Switching", Internet Draft , September 1999. [LSRMIB] Srinivasan, C., Viswanathan, A. and T. Nadeau, "MPLS Label Switch Router Management Information Base Using SMIv2", Internet Draft , February 2000. [LDPMIB] Cucchiara, J., Sjostrand, H., and J. Luciani, "Definitions of Managed Objects for the Multiprotocol Label Switching, Label Distribution Protocol (LDP)", Internet Draft , February 2000. [LblStk] Rosen, E., Rekhter, Y., Tappan, D., Srinivasan, et al. Expires September 2000 [Page 62] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 Farinacci, D., Federokow, G., Li, T., and A. Conta, "MPLS Label Stack Encoding", Internet Draft , September 1999. [RSVPTun] Awaduche, D., Berger, L., Der-Haw, G., Li, T., Swallow, G., and V. Srinivasan, "Extensions to RSVP for LSP Tunnels", Internet Draft , September 1999. [CR-LDP] B. Jamoussi (Editor), "Constraint-Based LSP Setup using LDP", Internet Draft , September 1999. [Assigned] Reynolds, J., and J. Postel, "Assigned Numbers", RFC 1700, October 1994. See also: http://www.isi.edu/in- notes/iana/assignments/smi-numbers [SNMPArch] Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for Describing SNMP Management Frameworks", RFC 2271, January 1998. [SMIv1] Rose, M., and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP-based Internets", RFC 1155, May 1990. Srinivasan, et al. Expires September 2000 [Page 63] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 [SNMPv1MIBDef]Rose, M., and K. McCloghrie, "Concise MIB Definitions", RFC 1212, March 1991. [SNMPv1Traps] M. Rose, "A Convention for Defining Traps for use with the SNMP", RFC 1215, March 1991. [SMIv2] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Structure of Management Information for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1902, January 1996. [SNMPv2TC] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Textual Conventions for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1903, SNMP Research, Inc., Cisco Systems, Inc., January 1996. [SNMPv2Conf] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Conformance Statements for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1904, January 1996. [SNMPv1] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple Network Management Protocol", RFC 1157, May 1990. [SNMPv2c] Case, J., McCloghrie, K., Rose, M., and Srinivasan, et al. Expires September 2000 [Page 64] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 S. Waldbusser, "Introduction to Community-based SNMPv2", RFC 1901, January 1996. [SNMPv2TM] 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. [SNMPv3MP] Case, J., Harrington D., Presuhn R., and B. Wijnen, "Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)", RFC 2272, January 1998. [SNMPv3USM] Blumenthal, U., and B. Wijnen, "User- based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 2574, April 1999. [SNMPv2PO] 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. [SNMPv3App] Levi, D., Meyer, P., and B. Stewart, "SNMPv3 Applications", RFC 2273, January 1998. Srinivasan, et al. Expires September 2000 [Page 65] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 [SNMPv3VACM] Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 2575, April 1999. [IPSEC] Kent, S., and Atkinson, R., "Security Architecture for the Internet Protocol", RFC 2401, November 1998. [IFMIB] McCloghrie, K., and F. Kastenholtz, "The Interfaces Group MIB using SMIv2", RFC 2233, Nov. 1997 12. Authors' Addresses Cheenu Srinivasan Tachion Networks, Inc. 2 Meridian Road Eatontown, NJ 07724 Phone: +1-732-542-7750 x234 Email: cheenu@tachion.com Arun Viswanathan Force10 Networks 1440 McCarthy Blvd Milpitas, CA 95035 Phone: +1-408-571-3516 Email: arun@force10networks.com Srinivasan, et al. Expires September 2000 [Page 66] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 Thomas D. Nadeau Cisco Systems, Inc. 300 Apollo Drive Chelmsford, MA 01824 Phone: +1-978-244-3051 Email: tnadeau@cisco.com 13. Full Copyright Statement Copyright (C) The Internet Society (2000). 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 document 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 developing Internet standards in which case the procedures for copyrights 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 Srinivasan, et al. Expires September 2000 [Page 67] Internet Draft MPLS Traffic Engineering MIB 10 March 2000 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. Srinivasan, et al. Expires September 2000 [Page 68]