Request for Comments: 7453
Category: Standards Track
ISSN: 2070-1721
Dell Inc.
K. Sampath
Redeem
S. Aldrin
Huawei Technologies
T. Nadeau
Brocade
February 2015
MPLS Transport Profile (MPLS-TP) Traffic Engineering (TE)
Management Information Base (MIB)
Abstract
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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 additional managed objects and textual conventions for tunnels, identifiers, and Label Switching Routers to support Multiprotocol Label Switching (MPLS) MIB modules for transport networks.
Status of This Memo
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This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7453.
Copyright Notice
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Copyright © 2015 IETF Trust and the persons identified as the document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License.
Table of Contents
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1. Introduction ....................................................4 2. The Internet-Standard Management Framework ......................5 3. Overview ........................................................5 3.1. Conventions Used in This Document ..........................5 3.2. Terminology ................................................6 3.3. Acronyms ...................................................6 4. Motivations .....................................................6 5. Feature List ....................................................7 6. Outline .........................................................7 6.1. MIB Module Extensions ......................................8 6.1.1. Summary of MIB Module Changes .......................8 6.2. MPLS-TE-EXT-STD-MIB ........................................9 6.2.1. mplsTunnelExtNodeConfigTable ........................9 6.2.2. mplsTunnelExtNodeIpMapTable .........................9 6.2.3. mplsTunnelExtNodeIccMapTable .......................10 6.2.4. mplsTunnelExtTable .................................10 6.3. MPLS-TC-EXT-STD-MIB .......................................10 6.4. MPLS-ID-STD-MIB ...........................................10 6.5. MPLS-LSR-EXT-STD-MIB ......................................11 6.6. The Use of RowPointer .....................................11 7. MIB Modules' Interdependencies .................................11 8. Dependencies between MIB Module Tables .........................13 9. Example of MPLS-TP Tunnel Setup ................................13 9.1. Example of MPLS-TP Static Co-routed Bidirectional Tunnel Setup ..............................................15 9.1.1. mplsTunnelEntry ....................................15 9.1.2. mplsTunnelExtEntry .................................16 9.1.3. Forward-Direction mplsOutSegmentEntry ..............16 9.1.4. Reverse-Direction mplsInSegmentEntry ...............16 9.1.5. Forward-Direction mplsXCEntry ......................17 9.1.6. Reverse-Direction mplsXCEntry ......................17 9.1.7. Forward-Direction mplsXCExtEntry ...................18 9.1.8. Reverse-Direction mplsXCExtEntry ...................18 9.2. Example of MPLS-TP Static Associated Bidirectional Tunnel Setup ..............................................18 9.2.1. Forward-Direction mplsTunnelEntry ..................18 9.2.2. Forward-Direction mplsTunnelExtEntry ...............19 9.2.3. Forward-Direction mplsOutSegmentTable ..............20 9.2.4. Forward-Direction mplsXCEntry ......................20 9.2.5. Forward-Direction mplsXCExtEntry ...................20 9.2.6. Reverse-Direction mplsTunnelEntry ..................21 9.2.7. Reverse-Direction mplsTunnelExtEntry ...............22 9.2.8. Reverse-Direction mplsInSegmentEntry ...............22 9.2.9. Reverse-Direction mplsXCEntry ......................22 9.2.10. Reverse-Direction mplsXCExtEntry ..................23 9.3. Example of MPLS-TP Signaled Co-routed Bidirectional Tunnel Setup ................................23 9.3.1. mplsTunnelEntry ....................................23 9.3.2. mplsTunnelExtEntry .................................24 9.3.3. Forward-Direction mplsOutSegmentEntry ..............24 9.3.4. Reverse-Direction mplsInSegmentEntry ...............25 9.3.5. Forward-Direction mplsXCEntry ......................25 9.3.6. Reverse-Direction mplsXCEntry ......................25 9.3.7. Forward-Direction mplsXCExtEntry ...................25 9.3.8. Reverse-Direction mplsXCExtEntry ...................25 10. MPLS Textual Convention Extension MIB Definitions .............26 11. MPLS Identifier MIB Definitions ...............................29 12. MPLS LSR Extension MIB Definitions ............................34 13. MPLS Tunnel Extension MIB Definitions .........................39 14. Security Considerations .......................................57 15. IANA Considerations ...........................................58 15.1. IANA Considerations for MPLS-TC-EXT-STD-MIB ..............58 15.2. IANA Considerations for MPLS-ID-STD-MIB ..................58 15.3. IANA Considerations for MPLS-LSR-EXT-STD-MIB .............58 15.4. IANA Considerations for MPLS-TE-EXT-STD-MIB ..............59 16. References ....................................................59 16.1. Normative References .....................................59 16.2. Informative References ...................................60 Acknowledgments ...................................................62 Authors' Addresses ................................................62
1. Introduction
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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 additional textual conventions and managed objects for tunnels, identifiers, and Label Switching Routers to support Multiprotocol Label Switching (MPLS) MIB modules for transport networks. MIB modules defined in this document extend the existing MPLS MIB objects in such a way that they support the MPLS Transport Profile (MPLS-TP) but also other MPLS networks. Hence, "MPLS-TP" is not included in the MIB module names.
As described in the MPLS Traffic Engineering (TE) MIB definition [RFC3812], MPLS traffic engineering is concerned with the creation and management of MPLS tunnels. This term is a shorthand for a combination of one or more LSPs linking an ingress and an egress LSR. Several types of point-to-point MPLS tunnels may be constructed between a pair of LSRs A and B:
- Unidirectional with a single LSP (say, from A to B).
- Associated bidirectional consisting of two separately routed LSPs, one linking A to B and the other linking B to A. Together, the pair provides a single logical bidirectional transport path.
- Co-routed bidirectional consisting of an associated bidirectional tunnel but with the second LSP from B to A following the reverse of the path of the LSP from A to B, in terms of both nodes and links.
Tunnels may be either statically configured by management action or dynamically created using an LSP management protocol.
The existing MPLS TE MIB [RFC3812] and the GMPLS TE MIB [RFC4802] address only a subset of the combinations of statically and dynamically configured tunnel types, catering to statically configured unidirectional tunnels together with dynamically configured unidirectional and co-routed bidirectional tunnels. They are also restricted to two endpoint LSRs identified by IP addresses.
The MPLS-TP TE MIB defined in this document extends the MIB modules defined in [RFC3812] to cover all six combinations (that is, adding support for statically configured associated and co-routed bidirectional plus dynamically configured associated bidirectional tunnels). It also extends support to endpoints that have identifiers other than IP addresses.
This support is provided by a suite of four MIB modules that are to be used in conjunction with the MIB modules defined in [RFC3812] and the companion document [RFC3813] for MPLS-TP tunnel management.
At the time of writing, SNMP SET is no longer recommended as a way to configure MPLS networks as described in [RFC3812]. However, since the MIB modules specified in this document extend and are intended to work in parallel with the MIB modules for MPLS specified in [RFC3812], certain objects defined here are specified with MAX-ACCESS of read-write or read-create so that specifications of the base tables in [RFC3812] and the extensions in this document are consistent. Although the examples described in Section 9 specify means to configure MPLS-TP Tunnels in a similar way to the examples in [RFC3812], this should be seen as indicating how the MIB values would be returned if the specified circumstances were configured by alternative means.
2. The Internet-Standard Management Framework
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For a detailed overview of the documents that describe the current Internet-Standard Management Framework, please refer to section 7 of RFC 3410 [RFC3410].
Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. MIB objects are generally accessed through the Simple Network Management Protocol (SNMP). Objects in the MIB are defined using the mechanisms defined in the Structure of Management Information (SMI). This memo specifies a MIB module that is compliant to the SMIv2, which is described in STD 58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580 [RFC2580].
3. Overview
3.1. Conventions Used in This Document
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The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119].
3.2. Terminology
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This document uses terminology from the "Multiprotocol Label Switching Architecture" [RFC3031], "Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Management Information Base (MIB)" [RFC3812], "Multiprotocol Label Switching (MPLS) Label Switching Router (LSR) Management Information Base (MIB)" [RFC3813], and"MPLS Transport Profile (MPLS-TP) Identifiers" [RFC6370].
3.3. Acronyms
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CC: Country Code
ICC: ITU Carrier Code
LSP: Label Switched Path
LSR: Label Switching Router
MPLS-TP: MPLS Transport Profile
TE: Traffic Engineering
TP: Transport Profile
4. Motivations
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"Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Management Information Base (MIB)" [RFC3812] provides support for Traffic Engineering tunnels. In MPLS, the actual transport of packets is provided by Label Switched Paths (LSPs). A transport service may be composed of multiple LSPs. In order to clearly identify the MPLS-TP service, as defined in [RFC6370], we use the term "MPLS-TP Tunnel" or simply "tunnel". However, with MPLS-TP, the characteristics of the tunnels were enhanced. For example, MPLS-TP Tunnels are bidirectional in nature and could be used with non-IP identifiers for the tunnel endpoints. As the existing MPLS-TE-STD-MIB and GMPLS-TE-STD-MIB were defined mainly to support unidirectional tunnels and signaled co-routed bidirectional tunnel definitions, respectively, these existing MIB modules are not sufficient to capture all the characteristics of the tunnels. Hence, enhancing the MIB modules to support MPLS-TP Tunnels is required. As most of the attributes of MPLS Traffic Engineering tunnels are also applicable to MPLS-TP Tunnels, it is optimal to reuse and extend the existing MIB module definition instead of defining a new MIB module.
This document defines four additional MIB modules, namely, MPLS-TE-EXT-STD-MIB, MPLS-TC-EXT-STD-MIB, MPLS-ID-STD-MIB, and MPLS-LSR-EXT-STD-MIB. As these additional MIB modules are required for MPLS-TP functionality, these are all defined in this document, instead of being documented separately.
5. Feature List
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The MIBs in this document satisfy the following requirements and constraints:
The MIB modules, taken together, support statically configured and dynamically signaled point-to-point, co-routed bidirectional and associated bidirectional tunnels.
- The MPLS tunnels need not be interfaces, but it is possible to configure an MPLS-TP Tunnel as an interface. The same ifType 150, as defined in Section 8 of [RFC3812], will be used for MPLS-TP Tunnels as well.
- The mplsTunnelTable [RFC3812] is also to be used for MPLS-TP Tunnels.
- New MPLS-TP-specific textual conventions and identifiers are required.
- The mplsTunnelTable is sparsely extended to support objects specific to MPLS-TP Tunnels.
- A node configuration table (mplsTunnelExtNodeConfigTable), as detailed in Section 6.2.1, below, is used to translate the Global_ID::Node_ID or ICC_Operator_ID::Node_ID to the local identifier in order to index the mplsTunnelTable.- The mplsXCTable is sparsely extended to support objects specific to MPLS-TP XC (Cross Connect).
- The MIB module supports persistent, as well as non-persistent, tunnels.
6. Outline
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Traffic Engineering support for the MPLS-TP Tunnels requires the setup of the co-routed or associated bidirectional tunnel. The tables and MIB modules that are mentioned in the below subsections support the functionality described in [RFC5654] and [RFC6370]. These tables support both IP-compatible and ICC-based tunnel configurations.
Figure 1, below, depicts how the table references are followed in this MIB.
Tunnel1-->XC1<-------------- ^ ^ | | | | | | |-->InSeg1 | | | | |-->OutSeg1 | | | v | | ------XCext1 | | | | V v | Tunnel2-->XC1 | ^ | | | | | |-->InSeg2 | | | |-->OutSeg2 | | v | ------XCext2------------
Figure 1: Table References of MIB Modules
6.1. MIB Module Extensions
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Four MIB modules are extended to support MPLS-TP Tunnels, namely, MPLS-TE-EXT-STD-MIB, MPLS-TC-EXT-STD-MIB, MPLS-ID-STD-MIB, and MPLS-LSR-EXT-STD-MIB. The following section provides the summary of changes.
6.1.1. Summary of MIB Module Changes
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- Node configuration table (mplsTunnelExtNodeConfigTable) for setting the local identifier for Tunnel Ingress and Egress identifiers.
- Node IP map table (mplsTunnelExtNodeIpMapTable) for querying the local identifier for a given Global_ID and Node_ID.
- Node ICC map table (mplsTunnelExtNodeIccMapTable) for querying the local identifier for a given ICC_Operator_ID and Node_ID.
- Tunnel extension table (mplsTunnelExtTable) for setting up MPLS-TP Tunnels with sparse extension of mplsTunnelTable.
- Textual conventions and object definitions for MPLS-TP Tunnels.
- Cross-connect extension table (mplsXCExtTable) for setting up the MPLS-TP LSPs.
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These tables are described in the subsequent sections.
6.2. MPLS-TE-EXT-STD-MIB
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The TE MIB module extensions and details of the tables are described in the following sections.
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6.2.1. mplsTunnelExtNodeConfigTable
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The mplsTunnelExtNodeConfigTable is used to assign a local identifier for a given ICC_Operator_ID::Node_ID or Global_ID::Node_ID combination as defined in [RFC6923] and [RFC6370], respectively. The CC is a string of two characters, each being an uppercase Basic Latin alphabetic (i.e., A-Z). The ICC is a string of one to six characters, each an uppercase Basic Latin alphabetic (i.e., A-Z) or numeric (i.e., 0-9). All of the characters are encoded using [T.50] as described in [RFC6370].
In the IP-compatible mode, Global_ID::Node_ID, is used to uniquely identify a node. For each ICC_Operator_ID::Node_ID or Global_ID::Node_ID, there is a unique entry in the table representing a node. As the regular TE tunnels use the IP address as the LSR ID, the local identifier should be below the first valid IP address, which is 16777216[1.0.0.0]. Every node is assigned a local identifier within a range of 0 to 16777215. This local identifier is used for indexing into mplsTunnelTable as mplsTunnelIngressLSRId and mplsTunnelEgressLSRId.
For IP-compatible environments, an MPLS-TP Tunnel is indexed by Tunnel Index, Tunnel Instance, Source Global_ID, Source Node_ID, Destination Global_ID, and Destination Node_ID.
For ICC-based environments, an MPLS-TP Tunnel is indexed by Tunnel Index, Tunnel Instance, Source CC, Source ICC, Source Node_ID, Destination CC, Destination ICC, and Destination Node_ID.
As mplsTunnelTable is indexed by mplsTunnelIndex, mplsTunnelInstance, mplsTunnelIngressLSRId, and mplsTunnelEgressLSRId, the MPLS-TP tunnel identifiers cannot be used directly.
The mplsTunnelExtNodeConfigTable will be used to store an entry for ICC_Operator_ID::Node_ID or Global_ID::Node_ID with a local identifier to be used as the LSR ID in mplsTunnelTable.
6.2.2. mplsTunnelExtNodeIpMapTable
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The read-only mplsTunnelExtNodeIpMapTable is used to query the local identifier assigned and stored in mplsTunnelExtNodeConfigTable for a given Global_ID::Node_ID. In order to query the local identifier, in the IP-compatible mode, this table is indexed with Global_ID::Node_ID. In the IP-compatible mode for a TP tunnel, Global_ID::Node_ID is used.
A separate query is made to get the local identifier of both Ingress and Egress Global_ID::Node_ID identifiers. These local identifiers are used as mplsTunnelIngressLSRId and mplsTunnelEgressLSRId when indexing mplsTunnelTable.
6.2.3. mplsTunnelExtNodeIccMapTable
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The read-only mplsTunnelExtNodeIccMapTable is used to query the local identifier assigned and stored in the mplsTunnelExtNodeConfigTable for a given ICC_Operator_ID::Node_ID.
A separate query is made to get the local identifier of both Ingress and Egress ICC_Operator_ID::Node_ID. These local identifiers are used as mplsTunnelIngressLSRId and mplsTunnelEgressLSRId when indexing mplsTunnelTable.
6.2.4. mplsTunnelExtTable
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This table sparsely extends the mplsTunnelTable in order to support MPLS-TP Tunnels with additional objects. All the additional attributes specific to supporting a TP tunnel are contained in this extended table and could be accessed with the mplsTunnelTable indices.
The gmplsTunnelReversePerfTable [RFC4802] should be used to provide per-tunnel packet performance information for the reverse direction of a bidirectional tunnel. It can be seen as supplementing the mplsTunnelPerfTable, which augments the mplsTunnelTable.
6.3. MPLS-TC-EXT-STD-MIB
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This MIB module contains textual conventions for LSPs of MPLS-based transport networks.
6.4. MPLS-ID-STD-MIB
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This MIB module contains identifier object definitions for MPLS Traffic Engineering in transport networks.
6.5. MPLS-LSR-EXT-STD-MIB
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This MIB module contains generic object definitions (including the mplsXCExtTable -- cross-connect extension table -- for setting up the MPLS-TP LSPs with sparse extension of mplsXCTable) for MPLS LSRs in transport networks.
6.6. The Use of RowPointer
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This document follows the RowPointer usage as described in Section 10 of [RFC3812].
A new RowPointer object, mplsTunnelExtOppositeDirPtr, is added to mplsTunnelExtTable of MPLS-TE-EXT-STD-MIB module. This RowPointer object points to the tunnel entry in the opposite direction.
Two additional RowPointers objects, mplsXCExtTunnelPointer and mplsXCExtOppositeDirXCPtr, are added to the mplsXCExtTable of MPLS-LSR-EXT-STD-MIB. The RowPointer mplsXCExtTunnelPointer is a read-only object used to indicate the back pointer to the tunnel entry. The RowPointer mplsXCExtOppositeDirXCPtr object points to the opposite-direction XC entry.
If either of these RowPointers return zeroDotZero, it implies that there is no entry associated with the RowPointer object.
7. MIB Modules' Interdependencies
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This section provides an overview of the relationships between the MPLS-TP TE MIB module and other MPLS MIB modules.
The arrows in the following diagram show a "depends on" relationship. A relationship of "MIB module A depends on MIB module B" means that MIB module A uses an object, object identifier, or textual convention defined in MIB module B, or that MIB module A contains a pointer (index or RowPointer) to an object in MIB module B.
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MPLS-TC-EXT-STD-MIB
^ | | +<---- MPLS-ID-STD-MIB ^ | | +<---- MPLS-TE-EXT-STD-MIB | | | V | MPLS-TE-STD-MIB | | | | | V | MPLS-LSR-STD-MIB | ^ | | | | +------MPLS-LSR-EXT-STD-MIB-
Figure 2: MIB Modules' Interdependencies
Thus:
- All the new MPLS extension MIB modules depend on MPLS-TC-EXT-STD-MIB.
- MPLS-ID-STD-MIB contains references to objects in MPLS-TE-STD-MIB [RFC3812]. - MPLS-TE-EXT-STD-MIB contains references to objects in MPLS-TE-STD-MIB [RFC3812]. - MPLS-LSR-EXT-STD-MIB contains references to objects in MPLS-LSR-STD-MIB [RFC3813].The mplsTunnelExtTable sparsely extends the mplsTunnelTable of MPLS-TE-STD-MIB [RFC3812]. This helps in associating the reverse- direction tunnel information.
The mplsXCExtTable sparsely extends the mplsXCTable of MPLS-LSR-STD-MIB [RFC3813]. This helps in pointing back to the tunnel entry for easy tunnel access from the XC entry.
Note that all of the MIB modules shown above in the figure also have a dependency on MPLS-TC-STD-MIB.
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8. Dependencies between MIB Module Tables
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The tables in MPLS-TE-EXT-STD-MIB are related as shown on the diagram below. The arrows indicate a reference from one table to another.
mplsTunnelExtNodeConfigTable ^ ^ ^ | | | | | | | | | | | +----------------------+ | | | | mplsTunnelExtNodeIpMapTable mplsTunnelExtNodeIccMapTable | | mplsXCExtTable | | ^ | +---------+ | | | | | | | | V V mplsTunnelTable ---->mplsXCTable ^ | | | mplsTunnelExtTable-
Figure 3: Dependencies between MIB Module Tables
An existing mplsTunnelTable uses the mplsTunnelExtNodeConfigTable table to map the Global_ID::Node_ID and/or ICC_Operator_ID::Node_ID with the local number in order to accommodate in the existing tunnel table's ingress/egress LSR ID.
The new mplsTunnelExtTable provides the reverse-direction LSP information for the existing tunnel table so that bidirectional LSPs can be created.
The mplsXCExtTable sparsely extends the mplsLsrXCTable to provide backward reference to tunnel entry.
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9. Example of MPLS-TP Tunnel Setup
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In this section, we provide an example of configuring MPLS-TP bidirectional tunnels with IP tunnel identifiers. This example provides the usage of the MPLS-TP Tunnel MIB along with the extended MIB modules introduced in this document.
Do note that a MPLS-TP Tunnel could be set up statically as well as signaled via the control plane. This example considers accessing MIB objects on a head-end for static and signaled MPLS-TP Tunnels. This section shows the configuration of the forward- and reverse-direction MPLS-TP LSPs that run between East and West, and vice versa. Only objects relevant to MPLS-TP Tunnels are illustrated here.
In mplsTunnelExtNodeConfigTable:
{ -- Non-IP Ingress LSR_ID (Index to the table) mplsTunnelExtNodeConfigLocalId = 1, mplsTunnelExtNodeConfigGlobalId = 1234, mplsTunnelExtNodeConfigNodeId = 10, -- Mandatory parameters needed to activate the row go here mplsTunnelExtNodeConfigRowStatus = createAndGo (4) -- Non-IP Egress LSR ID (Index to the table) mplsTunnelExtNodeConfigLocalId = 2, mplsTunnelExtNodeConfigGlobalId = 1234, mplsTunnelExtNodeConfigNodeId = 20, -- Mandatory parameters needed to activate the row go here mplsTunnelExtNodeConfigRowStatus = createAndGo (4) }This will create an entry in the mplsTunnelExtNodeConfigTable for a Global_ID::Node_ID. The Ingress and Egress LSR are represented by separate entries.
The following read-only mplsTunnelExtNodeIpMapTable table is populated automatically upon creating an entry in mplsTunnelExtNodeConfigTable, and this table is used to retrieve the local identifier for the given Global_ID::Node_ID.
In mplsTunnelExtNodeIpMapTable:
{ -- Global_ID (Index to the table) mplsTunnelExtNodeIpMapGlobalId = 1234, -- Node Identifier (Index to the table) mplsTunnelExtNodeIpMapNodeId = 10, mplsTunnelExtNodeIpMapLocalId = 1 -- Global_ID (Index to the table) mplsTunnelExtNodeIpMapGlobalId = 1234, -- Node Identifier (Index to the table) mplsTunnelExtNodeIpMapNodeId = 20, mplsTunnelExtNodeIpMapLocalId = 2 }
9.1. Example of MPLS-TP Static Co-routed Bidirectional Tunnel Setup
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The following denotes the co-routed bidirectional tunnel "head" entry.
9.1.1. mplsTunnelEntry
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In mplsTunnelTable:
{ mplsTunnelIndex = 1, mplsTunnelInstance = 1, -- Local map number created in mplsTunnelExtNodeConfigTable for -- Ingress LSR ID mplsTunnelIngressLSRId = 1, -- Local map number created in mplsTunnelExtNodeConfigTable for -- Egress LSR ID mplsTunnelEgressLSRId = 2, mplsTunnelName = "TP co-routed bidirectional LSP", mplsTunnelDescr = "East to West", mplsTunnelIsIf = true (1), -- RowPointer MUST point to the first accessible column mplsTunnelXCPointer = mplsXCLspId.4.0.0.0.1.1.0.4.0.0.0.1, mplsTunnelSignallingProto = none (1), mplsTunnelSetupPrio = 0, mplsTunnelHoldingPrio = 0, mplsTunnelSessionAttributes = 0, mplsTunnelLocalProtectInUse = false (0), -- RowPointer MUST point to the first accessible column mplsTunnelResourcePointer = mplsTunnelResourceMaxRate.5, mplsTunnelInstancePriority = 1, mplsTunnelHopTableIndex = 1, mplsTunnelIncludeAnyAffinity = 0, mplsTunnelIncludeAllAffinity = 0, mplsTunnelExcludeAnyAffinity = 0, mplsTunnelRole = head (1), -- Mandatory parameters needed to activate the row go here mplsTunnelRowStatus = createAndGo (4) } -
9.1.2. mplsTunnelExtEntry
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-- An MPLS extension table In mplsTunnelExtTable: { -- This opposite-direction tunnel pointer may point to 0.0 -- if co-routed bidirectional tunnel is managed by single tunnel -- entry mplsTunnelExtOppositeDirTnlPtr = 0.0 -- Set both the Ingress and Egress LocalId objects to TRUE, as -- this tunnel entry uses the local identifiers. mplsTunnelExtIngressLSRLocalIdValid = true, mplsTunnelExtEgressLSRLocalIdValid = true }Next, we must create the appropriate in-segment and out-segment entries. These are done in [RFC3813] using the mplsInSegmentTable and mplsOutSegmentTable.
9.1.3. Forward-Direction mplsOutSegmentEntry
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For the forward direction:
In mplsOutSegmentTable:
{mplsOutSegmentIndex = 0x0000001, mplsOutSegmentInterface = 13, -- outgoing interface mplsOutSegmentPushTopLabel = true(1), mplsOutSegmentTopLabel = 22, -- outgoing label -- RowPointer MUST point to the first accessible column. mplsOutSegmentTrafficParamPtr = 0.0, mplsOutSegmentRowStatus = createAndGo (4) }
9.1.4. Reverse-Direction mplsInSegmentEntry
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For the reverse direction:
In mplsInSegmentTable:
{mplsInSegmentIndex = 0x0000001 mplsInSegmentLabel = 21, -- incoming label mplsInSegmentNPop = 1, mplsInSegmentInterface = 13, -- incoming interface -- RowPointer MUST point to the first accessible column. mplsInSegmentTrafficParamPtr = 0.0, mplsInSegmentRowStatus = createAndGo (4) }Next, two cross-connect entries are created in the mplsXCTable of the MPLS-LSR-STD-MIB [RFC3813], thereby associating the newly created segments together.
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9.1.5. Forward-Direction mplsXCEntry
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In mplsXCTable:
{mplsXCIndex = 0x01, mplsXCInSegmentIndex = 0x00000000, mplsXCOutSegmentIndex = 0x00000001, mplsXCLspId = 0x0102 -- unique ID -- only a single outgoing label mplsXCLabelStackIndex = 0x00, mplsXCRowStatus = createAndGo(4) }
9.1.6. Reverse-Direction mplsXCEntry
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In mplsXCTable: { mplsXCIndex = 0x01, mplsXCInSegmentIndex = 0x00000001, mplsXCOutSegmentIndex = 0x00000000, mplsXCLspId = 0x0102 -- unique ID -- only a single outgoing label mplsXCLabelStackIndex = 0x00, mplsXCRowStatus = createAndGo(4) }This table entry is extended by an entry in the mplsXCExtTable. Note that the nature of the 'extends' relationship is a sparse augmentation so that the entry in the mplsXCExtTable has the same index values as the entry in the mplsXCTable.
9.1.7. Forward-Direction mplsXCExtEntry
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In mplsXCExtTable (0x01, 0x00000000, 0x00000001) { -- Back pointer from XC table to Tunnel table mplsXCExtTunnelPointer = mplsTunnelName.1.1.1.2 mplsXCExtOppositeDirXCPtr = mplsXCLspId.4.0.0.0.1.4.0.0.0.1.1.0 }
9.1.8. Reverse-Direction mplsXCExtEntry
-
Next, for the reverse direction:
In mplsXCExtTable (0x01, 0x00000001, 0x00000000) { -- Back pointer from XC table to Tunnel table mplsXCExtTunnelPointer = mplsTunnelName.1.1.1.2 mplsXCExtOppositeDirXCPtr = mplsXCLspId.4.0.0.0.1.1.0.4.0.0.0.1 }
9.2. Example of MPLS-TP Static Associated Bidirectional Tunnel Setup
-
The MPLS-TP associated bidirectional tunnel is implemented by two different unidirectional tunnels (Forward and Reverse LSPs), and these are associated together using mplsTunnelExtTable. Two different tunnel entries to provide the forward and reverse directions MAY be used for co-routed bidirectional tunnels as well.
The following denotes the associated bidirectional forward tunnel "head" entry:
9.2.1. Forward-Direction mplsTunnelEntry
-
-
In mplsTunnelTable:
{ mplsTunnelIndex = 1, mplsTunnelInstance = 1, -- Local map number created in mplsTunnelExtNodeConfigTable for -- Ingress LSR ID mplsTunnelIngressLSRId = 1, -- Local map number created in mplsTunnelExtNodeConfigTable for -- Egress LSR ID mplsTunnelEgressLSRId = 2, mplsTunnelName = "TP associated bidirectional forward LSP", mplsTunnelDescr = "East to West", mplsTunnelIsIf = true (1), -- RowPointer MUST point to the first accessible column mplsTunnelXCPointer = mplsXCLspId.4.0.0.0.1.1.0.4.0.0.0.1, mplsTunnelSignallingProto = none (1), mplsTunnelSetupPrio = 0, mplsTunnelHoldingPrio = 0, mplsTunnelSessionAttributes = 0, mplsTunnelLocalProtectInUse = false (0), -- RowPointer MUST point to the first accessible column mplsTunnelResourcePointer = mplsTunnelResourceMaxRate.5, mplsTunnelInstancePriority = 1, mplsTunnelHopTableIndex = 1, mplsTunnelIncludeAnyAffinity = 0, mplsTunnelIncludeAllAffinity = 0, mplsTunnelExcludeAnyAffinity = 0, mplsTunnelRole = head (1), -- Mandatory parameters needed to activate the row go here mplsTunnelRowStatus = createAndGo (4) } -
9.2.2. Forward-Direction mplsTunnelExtEntry
-
For the associated bidirectional forward LSP, in mplsTunnelExtTable:
{ mplsTunnelExtOppositeDirPtr = mplsTunnelName.2.1.2.1 -- Set both the Ingress and Egress LocalId objects to TRUE, as -- this tunnel entry uses the local identifiers. mplsTunnelExtIngressLSRLocalIdValid = true, mplsTunnelExtEgressLSRLocalIdValid = true }
9.2.3. Forward-Direction mplsOutSegmentTable
-
For the forward direction:
In mplsOutSegmentTable:
{mplsOutSegmentIndex = 0x0000001, mplsOutSegmentInterface = 13, -- outgoing interface mplsOutSegmentPushTopLabel = true(1), mplsOutSegmentTopLabel = 22, -- outgoing label -- RowPointer MUST point to the first accessible column. mplsOutSegmentTrafficParamPtr = 0.0, mplsOutSegmentRowStatus = createAndGo (4) }
9.2.4. Forward-Direction mplsXCEntry
-
In mplsXCTable: { mplsXCIndex = 0x01, mplsXCInSegmentIndex = 0x00000000, mplsXCOutSegmentIndex = 0x00000001, mplsXCLspId = 0x0102 -- unique ID -- only a single outgoing label mplsXCLabelStackIndex = 0x00, mplsXCRowStatus = createAndGo(4) }
9.2.5. Forward-Direction mplsXCExtEntry
-
In mplsXCExtTable (0x01, 0x00000000, 0x00000001) { -- Back pointer from XC table to Tunnel table mplsXCExtTunnelPointer = mplsTunnelName.1.1.1.2 mplsXCExtOppositeDirXCPtr = mplsXCLspId.4.0.0.0.1.4.0.0.0.1.1.0 }
9.2.6. Reverse-Direction mplsTunnelEntry
-
The following denotes the configured associated bidirectional reverse tunnel "tail" entry:
-
In mplsTunnelTable:
{ mplsTunnelIndex = 2, mplsTunnelInstance = 1, -- Local map number created in mplsTunnelExtNodeConfigTable for -- Ingress LSR ID mplsTunnelIngressLSRId = 2, -- Local map number created in mplsTunnelExtNodeConfigTable for -- Egress LSR ID mplsTunnelEgressLSRId = 1, mplsTunnelName = "TP associated bidirectional reverse LSP", mplsTunnelDescr = "West to East", mplsTunnelIsIf = true (1), -- RowPointer MUST point to the first accessible column mplsTunnelXCPointer = mplsXCLspId.4.0.0.0.1.4.0.0.0.1.1.0, mplsTunnelSignallingProto = none (1), mplsTunnelSetupPrio = 0, mplsTunnelHoldingPrio = 0, mplsTunnelSessionAttributes = 0, mplsTunnelLocalProtectInUse = false (0), -- RowPointer MUST point to the first accessible column mplsTunnelResourcePointer = mplsTunnelResourceMaxRate.5, mplsTunnelInstancePriority = 1, mplsTunnelHopTableIndex = 1, mplsTunnelIncludeAnyAffinity = 0, mplsTunnelIncludeAllAffinity = 0, mplsTunnelExcludeAnyAffinity = 0, mplsTunnelRole = head (1), -- Mandatory parameters needed to activate the row go here mplsTunnelRowStatus = createAndGo (4) } -
9.2.7. Reverse-Direction mplsTunnelExtEntry
-
For the associated bidirectional reverse LSP, in mplsTunnelExtTable:
{ mplsTunnelExtOppositeDirPtr = mplsTunnelName.1.1.1.2 -- Set both the Ingress and Egress LocalId objects to TRUE, as -- this tunnel entry uses the local identifiers. mplsTunnelExtIngressLSRLocalIdValid = true, mplsTunnelExtEgressLSRLocalIdValid = true }
9.2.8. Reverse-Direction mplsInSegmentEntry
-
Next, we must create the appropriate in-segment and out-segment entries. These are done in [RFC3813] using the mplsInSegmentTable and mplsOutSegmentTable.
In mplsInSegmentTable:
{mplsInSegmentIndex = 0x0000001 mplsInSegmentLabel = 21, -- incoming label mplsInSegmentNPop = 1, mplsInSegmentInterface = 13, -- incoming interface -- RowPointer MUST point to the first accessible column. mplsInSegmentTrafficParamPtr = 0.0, mplsInSegmentRowStatus = createAndGo (4) }Next, two cross-connect entries are created in the mplsXCTable of the MPLS-LSR-STD-MIB [RFC3813], thereby associating the newly created segments together.
9.2.9. Reverse-Direction mplsXCEntry
-
In mplsXCTable:
{mplsXCIndex = 0x01, mplsXCInSegmentIndex = 0x00000001, mplsXCOutSegmentIndex = 0x00000000, mplsXCLspId = 0x0102 -- unique ID -- only a single outgoing label mplsXCLabelStackIndex = 0x00, mplsXCRowStatus = createAndGo(4) }This table entry is extended by an entry in the mplsXCExtTable. Note that the nature of the 'extends' relationship is a sparse augmentation so that the entry in the mplsXCExtTable has the same index values as the entry in the mplsXCTable.
9.2.10. Reverse-Direction mplsXCExtEntry
-
Next, for the reverse direction:
In mplsXCExtTable (0x01, 0x00000001, 0x00000000) { -- Back pointer from XC table to Tunnel table mplsXCExtTunnelPointer = mplsTunnelName.2.1.2.1 mplsXCExtOppositeDirXCPtr = mplsXCLspId.4.0.0.0.1.1.0.4.0.0.0.1 }
9.3. Example of MPLS-TP Signaled Co-routed Bidirectional Tunnel Setup
-
The following denotes the co-routed bidirectional tunnel "head" entry. In intermediate and tail-end nodes, the tunnel table and its associated tables are created by the local management subsystem (e.g., agent) when the MPLS-TP Tunnel is signaled successfully. Refer to [RFC3812] and [RFC4802] for examples of signaled tunnel table configuration.
9.3.1. mplsTunnelEntry
-
-
In mplsTunnelTable:
{ mplsTunnelIndex = 1, mplsTunnelInstance = 0, -- Local map number created in mplsTunnelExtNodeConfigTable for -- Ingress LSR-Id. For the intermediate and tail-end nodes, -- the local management entity is expected to pick the first -- available local identifier that is not used in mplsTunnelTable. mplsTunnelIngressLSRId = 1,-- Local map number created in mplsTunnelExtNodeConfigTable for -- Egress LSR ID
mplsTunnelEgressLSRId = 2, mplsTunnelName = "TP co-routed bidirectional LSP", mplsTunnelDescr = "East to West", mplsTunnelIsIf = true (1), -- RowPointer MUST point to the first accessible column mplsTunnelXCPointer = mplsXCLspId.4.0.0.0.1.1.0.4.0.0.0.1, mplsTunnelSignallingProto = none (1), mplsTunnelSetupPrio = 0, mplsTunnelHoldingPrio = 0, mplsTunnelSessionAttributes = 0, mplsTunnelLocalProtectInUse = false (0), -- RowPointer MUST point to the first accessible column mplsTunnelResourcePointer = mplsTunnelResourceMaxRate.5, mplsTunnelInstancePriority = 1, mplsTunnelHopTableIndex = 1, mplsTunnelIncludeAnyAffinity = 0, mplsTunnelIncludeAllAffinity = 0, mplsTunnelExcludeAnyAffinity = 0, mplsTunnelRole = head (1), -- Mandatory parameters needed to activate the row go here mplsTunnelRowStatus = createAndGo (4) } -
9.3.2. mplsTunnelExtEntry
-
-- An MPLS extension table In mplsTunnelExtTable: { -- This opposite-direction tunnel pointer may point to 0.0 -- if co-routed bidirectional tunnel is managed by a single -- tunnel entry mplsTunnelExtOppositeDirTnlPtr = 0.0 -- Set both the Ingress and Egress LocalId objects to TRUE, as -- this tunnel entry uses the local identifiers. mplsTunnelExtIngressLSRLocalIdValid = true, mplsTunnelExtEgressLSRLocalIdValid = true }Next, we must create the appropriate in-segment and out-segment entries. These are done in [RFC3813] using the mplsInSegmentTable and mplsOutSegmentTable.
9.3.3. Forward-Direction mplsOutSegmentEntry
-
The forward-direction mplsOutSegmentTable will be populated automatically based on the information received from the signaling protocol.
9.3.4. Reverse-Direction mplsInSegmentEntry
-
The reverse-direction mplsOutSegmentTable will be populated automatically based on the information received from the signaling protocol.
Next, two cross-connect entries are created in the mplsXCTable of the MPLS-LSR-STD-MIB [RFC3813], thereby associating the newly created segments together.
9.3.5. Forward-Direction mplsXCEntry
-
The forward-direction mplsXCEntry will be populated as soon as the forward-path label information is available.
9.3.6. Reverse-Direction mplsXCEntry
-
The reverse-direction mplsXCEntry will be populated as soon as the reverse-path label information is available.
This table entry is extended by an entry in the mplsXCExtTable. Note that the nature of the 'extends' relationship is a sparse augmentation so that the entry in the mplsXCExtTable has the same index values as the entry in the mplsXCTable.
9.3.7. Forward-Direction mplsXCExtEntry
-
Once the forward path information is negotiated using the signaling protocol, the forward-direction mplsXCExtEntry will be created for associating the opposite-direction XC entry and tunnel table entry.
9.3.8. Reverse-Direction mplsXCExtEntry
-
Once the reverse path information is negotiated using the signaling protocol, the reverse-direction mplsXCExtEntry will be created for associating the opposite-direction XC entry and tunnel table entry.
10. MPLS Textual Convention Extension MIB Definitions
-
MPLS-TC-EXT-STD-MIB DEFINITIONS ::= BEGIN
IMPORTS
-
MODULE-IDENTITY, Unsigned32
FROM SNMPv2-SMI -- RFC 2578
-
TEXTUAL-CONVENTION
FROM SNMPv2-TC -- RFC 2579
-
mplsStdMIB
FROM MPLS-TC-STD-MIB -- RFC 3811 ; mplsTcExtStdMIB MODULE-IDENTITY LAST-UPDATED "201502020000Z" -- February 2, 2015 ORGANIZATION "Multiprotocol Label Switching (MPLS) Working Group" CONTACT-INFO " Venkatesan Mahalingam Dell Inc, 5450 Great America Parkway, Santa Clara, CA 95054, USA Email: venkat.mahalingams@gmail.com Kannan KV Sampath Redeem, India Email: kannankvs@gmail.com Sam Aldrin Huawei Technologies 2330 Central Express Way, Santa Clara, CA 95051, USA Email: aldrin.ietf@gmail.com Thomas D. Nadeau Email: tnadeau@lucidvision.com " DESCRIPTION "This MIB module contains Textual Conventions for LSPs of MPLS- based transport networks.
-
-
Copyright © 2015 IETF Trust and the persons identified as authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info)."
-- Revision history.
-
REVISION "201502020000Z" -- February 2, 2015 DESCRIPTION "MPLS Textual Convention Extensions" ::= { mplsStdMIB 17 }MplsGlobalId ::= TEXTUAL-CONVENTION
STATUS current DESCRIPTION "This object contains the Textual Convention for an IP-based operator-unique identifier (Global_ID). The Global_ID can contain the 2-octet or 4-octet value of the operator's Autonomous System Number (ASN).-
-
When the Global_ID is derived from a 2-octet ASN, the two high-order octets of this 4-octet identifier MUST be set to zero (0x00). Further, ASN 0 is reserved. The size of the Global_ID string MUST be zero if the Global_ID is invalid.
-
Note that a Global_ID of zero is limited to entities contained within a single operator and MUST NOT be used across a Network-to-Network Interface (NNI). A non-zero Global_ID MUST be derived from an ASN owned by the operator." REFERENCE "MPLS Transport Profile (MPLS-TP) Identifiers, RFC 6370, Section 3" SYNTAX OCTET STRING (SIZE (4)) MplsCcId ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "The CC (Country Code) is a string of two characters, each being an uppercase Basic Latin alphabetic (i.e., A-Z). The characters are encoded using ITU-T Recommendation T.50. The size of the CC string MUST be zero if the CC identifier is invalid." REFERENCE "MPLS-TP Identifiers Following ITU-T Conventions, RFC 6923, Section 3. International Reference Alphabet (IRA) (Formerly International Alphabet No. 5 or IA5) - Information technology - 7-bit coded character set for information exchange, ITU-T Recommendation T.50, September 1992." SYNTAX OCTET STRING (SIZE (0|2)) MplsIccId ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "The ICC is a string of one to six characters, each an uppercase Basic Latin alphabetic (i.e., A-Z) or numeric (i.e., 0-9). The characters are encoded using ITU-T Recommendation T.50. The size of the ICC string MUST be zero if the ICC identifier is invalid." REFERENCE "MPLS-TP Identifiers Following ITU-T Conventions, RFC 6923, Section 3. International Reference Alphabet (IRA) (Formerly International Alphabet No. 5 or IA5) - Information technology - 7-bit coded character set for information exchange, ITU-T Recommendation T.50, September 1992." SYNTAX OCTET STRING (SIZE (0|1..6))MplsNodeId ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d" STATUS current DESCRIPTION "The Node_ID is assigned within the scope of the Global_ID/ICC_Operator_ID.-
-
When IPv4 addresses are in use, the value of this object can be derived from the LSR's IPv4 loopback address. When IPv6 addresses are in use, the value of this object can be a 32-bit value unique within the scope of a Global_ID.
Note that, when IP reachability is not needed, the 32-bit Node_ID is not required to have any association
with the IPv4 address space. The value of 0 indicates an invalid Node_ID."
-
REFERENCE "MPLS Transport Profile (MPLS-TP) Identifiers, RFC 6370, Section 4" SYNTAX Unsigned32 (0|1..4294967295) -- MPLS-TC-EXT-STD-MIB module ends END
11. MPLS Identifier MIB Definitions
-
MPLS-ID-STD-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE FROM SNMPv2-SMI -- RFC 2578 MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF -- RFC 2580 mplsStdMIB FROM MPLS-TC-STD-MIB -- RFC 3811 MplsGlobalId, MplsCcId, MplsIccId, MplsNodeId FROM MPLS-TC-EXT-STD-MIB ;mplsIdStdMIB MODULE-IDENTITY
LAST-UPDATED "201502020000Z" -- February 2, 2015 ORGANIZATION "Multiprotocol Label Switching (MPLS) Working Group"CONTACT-INFO
-
"
Venkatesan Mahalingam Dell Inc, 5450 Great America Parkway, Santa Clara, CA 95054, USA Email: venkat.mahalingams@gmail.com Kannan KV Sampath Redeem, India Email: kannankvs@gmail.com Sam Aldrin Huawei Technologies 2330 Central Express Way, Santa Clara, CA 95051, USA Email: aldrin.ietf@gmail.com Thomas D. Nadeau Email: tnadeau@lucidvision.com " DESCRIPTION "This MIB module contains identifier object definitions for MPLS Traffic Engineering in transport networks.-
-
Copyright © 2015 IETF Trust and the persons identified as authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info)."
-
-- Revision history.
REVISION "201502020000Z" -- February 2, 2015 DESCRIPTION "This MIB modules defines the MIB objects for MPLS-TP identifiers" ::= { mplsStdMIB 18 } -- notifications mplsIdNotifications OBJECT IDENTIFIER ::= { mplsIdStdMIB 0 } -- tables, scalars mplsIdObjects OBJECT IDENTIFIER ::= { mplsIdStdMIB 1 } -- conformance mplsIdConformance OBJECT IDENTIFIER ::= { mplsIdStdMIB 2 }-- MPLS common objects
mplsIdGlobalId OBJECT-TYPE
SYNTAX MplsGlobalId MAX-ACCESS read-write STATUS current DESCRIPTION "This object allows the operator or service provider to assign a unique operator identifier, also called the MPLS-TP Global_ID. If this value is used in mplsTunnelExtNodeConfigGlobalId for mapping Global_ID::Node_ID with the local identifier, then this object value MUST NOT be changed." ::= { mplsIdObjects 1 }mplsIdNodeId OBJECT-TYPE
SYNTAX MplsNodeId MAX-ACCESS read-write STATUS current DESCRIPTION "This object allows the operator or service provider to assign a unique MPLS-TP Node_ID. The Node_ID is assigned within the scope of the Global_ID/ICC_Operator_ID. If this value is used in mplsTunnelExtNodeConfigNodeId for mapping Global_ID::Node_ID with the local identifier, then this object value SHOULD NOT be changed. If this value is used in mplsTunnelExtNodeConfigNodeId for mapping ICC_Operator_ID::Node_ID with the local identifier, then this object value MUST NOT be changed." ::= { mplsIdObjects 2 }mplsIdCc OBJECT-TYPE
SYNTAX MplsCcId MAX-ACCESS read-write STATUS current DESCRIPTION "This object allows the operator or service provider to assign a Country Code (CC) to the node. Global uniqueness of ICC is assured by concatenating the ICC with a Country Code (CC). If this value is used in mplsTunnelExtNodeConfigCcId for mapping ICC_Operator_ID::Node_ID with the local identifier, then this object value MUST NOT be changed." REFERENCE "MPLS-TP Identifiers Following ITU-T Conventions, RFC 6923, Section 3" ::= { mplsIdObjects 3 }mplsIdIcc OBJECT-TYPE
SYNTAX MplsIccId MAX-ACCESS read-write STATUS current DESCRIPTION "This object allows the operator or service provider to assign a unique MPLS-TP ITU-T Carrier Code (ICC) to the node. Together, the CC and the ICC form the ICC_Operator_ID as CC::ICC. If this value is used in mplsTunnelExtNodeConfigIccId for mapping ICC_Operator_ID::Node_ID with the local identifier, then this object value MUST NOT be changed." REFERENCE "MPLS-TP Identifiers Following ITU-T Conventions, RFC 6923, Section 3" ::= { mplsIdObjects 4 }-- Module compliance.
mplsIdCompliances
OBJECT IDENTIFIER ::= { mplsIdConformance 1 }mplsIdGroups
OBJECT IDENTIFIER ::= { mplsIdConformance 2 }-- Compliance requirement for fully compliant implementations.
mplsIdModuleFullCompliance MODULE-COMPLIANCE
-
STATUS current
DESCRIPTION-
"Compliance statement for agents that provide full
-
support of the MPLS-ID-STD-MIB module."
-
MODULE -- this module
-- The mandatory group has to be implemented by all LSRs that -- originate, terminate, or act as transit for MPLS-TP Tunnels.
GROUP mplsIdIpOperatorGroup
DESCRIPTION-
"This group is mandatory for devices that support
-
IP-based identifier configuration."
-
GROUP mplsIdIccOperatorGroup
DESCRIPTION-
"This group is mandatory for devices that support
-
ICC-based identifier configuration." ::= { mplsIdCompliances 1 }
-- Compliance requirement for read-only implementations.
-
-
mplsIdModuleReadOnlyCompliance MODULE-COMPLIANCE
-
STATUS current
DESCRIPTION-
"Compliance statement for agents that only provide
-
read-only support for the MPLS-ID-STD-MIB module."
-
MODULE -- this module
GROUP mplsIdIpOperatorGroup
DESCRIPTION-
"This group is mandatory for devices that support
-
IP-based identifier configuration."
-
GROUP mplsIdIccOperatorGroup
DESCRIPTION-
"This group is mandatory for devices that support
-
ICC-based identifier configuration." OBJECT mplsIdGlobalId MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsIdNodeId MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsIdCc MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsIdIcc MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mplsIdCompliances 2 }-- Units of conformance.
-
mplsIdIpOperatorGroup OBJECT-GROUP
OBJECTS { mplsIdGlobalId, mplsIdNodeId } STATUS current DESCRIPTION "The objects in this group are optional for an ICC-based node." ::= { mplsIdGroups 1 }-
mplsIdIccOperatorGroup OBJECT-GROUP
OBJECTS { mplsIdNodeId, mplsIdCc, mplsIdIcc } STATUS current DESCRIPTION "The objects in this group are optional for an IP-based node." ::= { mplsIdGroups 2 } -- MPLS-ID-STD-MIB module ends END -
12. MPLS LSR Extension MIB Definitions
-
MPLS-LSR-EXT-STD-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE FROM SNMPv2-SMI -- RFC 2578 MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF -- RFC 2580 mplsStdMIB FROM MPLS-TC-STD-MIB -- RFC 3811 RowPointer FROM SNMPv2-TC -- RFC 2579 mplsXCIndex, mplsXCInSegmentIndex, mplsXCOutSegmentIndex, mplsInterfaceGroup, mplsInSegmentGroup, mplsOutSegmentGroup, mplsXCGroup, mplsLsrNotificationGroup FROM MPLS-LSR-STD-MIB; -- RFC 3813mplsLsrExtStdMIB MODULE-IDENTITY
LAST-UPDATED "201502020000Z" -- February 2, 2015 ORGANIZATION "Multiprotocol Label Switching (MPLS) Working Group" CONTACT-INFO " Venkatesan Mahalingam Dell Inc, 5450 Great America Parkway, Santa Clara, CA 95054, USA Email: venkat.mahalingams@gmail.com Kannan KV Sampath Redeem, India Email: kannankvs@gmail.com Sam Aldrin Huawei Technologies 2330 Central Express Way, Santa Clara, CA 95051, USA Email: aldrin.ietf@gmail.com Thomas D. Nadeau Email: tnadeau@lucidvision.com " DESCRIPTION "This MIB module contains generic object definitions for MPLS LSRs in transport networks.-
-
Copyright © 2015 IETF Trust and the persons identified as authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info)."
-- Revision history.
-
REVISION "201502020000Z" -- February 2, 2015 DESCRIPTION "MPLS LSR-specific MIB objects extension" ::= { mplsStdMIB 19 } -- notifications mplsLsrExtNotifications OBJECT IDENTIFIER ::= { mplsLsrExtStdMIB 0 } -- tables, scalars mplsLsrExtObjects OBJECT IDENTIFIER ::= { mplsLsrExtStdMIB 1 } -- conformance mplsLsrExtConformance OBJECT IDENTIFIER ::= { mplsLsrExtStdMIB 2 } -- MPLS LSR common objects mplsXCExtTable OBJECT-TYPE SYNTAX SEQUENCE OF MplsXCExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table sparse augments the mplsXCTable of MPLS-LSR-STD-MIB (RFC 3813) to provide MPLS-TP-specific information about associated tunnel information" REFERENCE "Multiprotocol Label Switching (MPLS) Label Switching Router (LSR) Management Information Base (MIB), RFC 3813." ::= { mplsLsrExtObjects 1 } mplsXCExtEntry OBJECT-TYPE SYNTAX MplsXCExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table sparsely extends the cross-connect information represented by an entry in the mplsXCTable in MPLS-LSR-STD-MIB (RFC 3813) through a sparse augmentation. An entry can be created by a network operator via SNMP SET commands or in response to signaling protocol events." REFERENCE "Multiprotocol Label Switching (MPLS) Label Switching Router (LSR) Management Information Base (MIB), RFC 3813." INDEX { mplsXCIndex, mplsXCInSegmentIndex, mplsXCOutSegmentIndex } ::= { mplsXCExtTable 1 } MplsXCExtEntry ::= SEQUENCE { mplsXCExtTunnelPointer RowPointer, mplsXCExtOppositeDirXCPtr RowPointer }mplsXCExtTunnelPointer OBJECT-TYPE
SYNTAX RowPointer MAX-ACCESS read-only STATUS current DESCRIPTION "This read-only object indicates the back pointer to the tunnel entry segment. The only valid value for Tunnel Pointer is mplsTunnelTable entry." REFERENCE "Multiprotocol Label Switching (MPLS) Label Switching Router (LSR) Management Information Base (MIB), RFC 3813." ::= { mplsXCExtEntry 1 }mplsXCExtOppositeDirXCPtr OBJECT-TYPE
SYNTAX RowPointer MAX-ACCESS read-create STATUS current DESCRIPTION "This object indicates the pointer to the opposite- direction XC entry. This object cannot be modified if mplsXCRowStatus for the corresponding entry in the mplsXCTable is active(1). If this pointer is not set or removed, mplsXCOperStatus should be set to down(2)." REFERENCE "Multiprotocol Label Switching (MPLS) Label Switching Router (LSR) Management Information Base (MIB), RFC 3813." ::= { mplsXCExtEntry 2 }mplsLsrExtCompliances
OBJECT IDENTIFIER ::= { mplsLsrExtConformance 1 }mplsLsrExtGroups
OBJECT IDENTIFIER ::= { mplsLsrExtConformance 2 }-- Compliance requirement for fully compliant implementations.
mplsLsrExtModuleFullCompliance MODULE-COMPLIANCE
-
STATUS current
DESCRIPTION-
"Compliance statement for agents that provide full support
for MPLS-LSR-EXT-STD-MIB.
The mandatory group has to be implemented by all LSRs that originate, terminate, or act as transit for TE-LSPs/tunnels.
In addition, depending on the type of tunnels supported, other groups become mandatory as explained below."
-
MODULE MPLS-LSR-STD-MIB -- The MPLS-LSR-STD-MIB, RFC 3813 MANDATORY-GROUPS { mplsInSegmentGroup, mplsOutSegmentGroup, mplsXCGroup, mplsLsrNotificationGroup }
-
MODULE -- this module
MANDATORY-GROUPS { mplsXCExtGroup } ::= { mplsLsrExtCompliances 1 }-- Compliance requirement for implementations that provide -- read-only access.
-
mplsLsrExtModuleReadOnlyCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION-
"Compliance requirement for implementations that only
provide read-only support for MPLS-LSR-EXT-STD-MIB.
Such devices can then be monitored but cannot be
configured using this MIB module."
-
MODULE MPLS-LSR-STD-MIB MANDATORY-GROUPS { mplsInterfaceGroup, mplsInSegmentGroup, mplsOutSegmentGroup }-
MODULE -- this module
GROUP mplsXCExtReadOnlyObjectsGroup
DESCRIPTION
-
"This group is mandatory for devices that support
opposite-direction XC configuration of tunnels."
-
-
-- mplsXCExtTable
OBJECT mplsXCExtOppositeDirXCPtr MIN-ACCESS read-only DESCRIPTION "Write access is not required. This object indicates the pointer to the opposite- direction XC entry. The only valid value for XC Pointer is mplsXCTable entry." ::= { mplsLsrExtCompliances 2 }-
-- Units of conformance.
mplsXCExtGroup OBJECT-GROUP OBJECTS { mplsXCExtTunnelPointer, mplsXCExtOppositeDirXCPtr } STATUS current DESCRIPTION "This object should be supported in order to access the tunnel entry from the XC entry." ::= { mplsLsrExtGroups 1 } mplsXCExtReadOnlyObjectsGroup OBJECT-GROUP OBJECTS { mplsXCExtTunnelPointer, mplsXCExtOppositeDirXCPtr } STATUS current DESCRIPTION "This Object is needed to associate the opposite-direction (forward/reverse) XC entry." ::= { mplsLsrExtGroups 2 } -- MPLS-LSR-EXT-STD-MIB module ends END -
13. MPLS Tunnel Extension MIB Definitions
-
This MIB module imports from [RFC2578], [RFC2579], [RFC2580], [RFC3289], [RFC3811], and [RFC3812]. MPLS-TE-EXT-STD-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE FROM SNMPv2-SMI -- RFC 2578 MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF -- RFC 2580 TruthValue, RowStatus, RowPointer, StorageType FROM SNMPv2-TC -- RFC 2579 IndexIntegerNextFree FROM DIFFSERV-MIB -- RFC 3289 MplsGlobalId, MplsNodeId, MplsCcId, MplsIccId FROM MPLS-TC-EXT-STD-MIB mplsStdMIB, MplsTunnelIndex, MplsTunnelInstanceIndex, MplsExtendedTunnelId FROM MPLS-TC-STD-MIB -- RFC 3811 mplsTunnelIndex, mplsTunnelInstance, mplsTunnelIngressLSRId, mplsTunnelEgressLSRId FROM MPLS-TE-STD-MIB -- RFC 3812 ;mplsTeExtStdMIB MODULE-IDENTITY
LAST-UPDATED "201502020000Z" -- February 2, 2015 ORGANIZATION "Multiprotocol Label Switching (MPLS) Working Group" CONTACT-INFO " Venkatesan Mahalingam Dell Inc, 5450 Great America Parkway, Santa Clara, CA 95054, USA Email: venkat.mahalingams@gmail.com Kannan KV Sampath Redeem, India Email: kannankvs@gmail.com Sam Aldrin Huawei Technologies 2330 Central Express Way, Santa Clara, CA 95051, USA Email: aldrin.ietf@gmail.com Thomas D. Nadeau Email: tnadeau@lucidvision.com " DESCRIPTION "This MIB module contains generic object definitions for extending the MPLS Traffic Engineering tunnels in transport networks.-
-
Copyright © 2015 IETF Trust and the persons identified as authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info)."
-- Revision history.
REVISION
-
"201502020000Z" -- February 2, 2015
-
DESCRIPTION
-
"MPLS TE MIB objects extension"
::= { mplsStdMIB 20 }-- Top-level components of this MIB module.
-- tables, scalars mplsTeExtObjects OBJECT IDENTIFIER ::= { mplsTeExtStdMIB 0 } -- conformance mplsTeExtConformance OBJECT IDENTIFIER ::= { mplsTeExtStdMIB 1 }-- Start of MPLS Transport Profile Node configuration table
mplsTunnelExtNodeConfigLocalIdNext OBJECT-TYPE
SYNTAX IndexIntegerNextFree (0..16777215) MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains an unused value for mplsTunnelExtNodeConfigLocalId, or a zero to indicate that none exist. Negative values are not allowed, as they do not correspond to valid values of mplsTunnelExtNodeConfigLocalId." ::= { mplsTeExtObjects 1 }mplsTunnelExtNodeConfigTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsTunnelExtNodeConfigEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table allows the operator to map a node or LSR identifier (IP-compatible [Global_ID::Node_ID] or ICC-based [ICC_Operator_ID::Node_ID]) with a local identifier.-
This table is created to reuse the existing mplsTunnelTable for MPLS-based transport network tunnels also.
Since the MPLS tunnel's Ingress/Egress LSR identifiers' size (Unsigned32) value is not compatible for MPLS-TP Tunnel, i.e., Global_ID::Node_ID of size 8 bytes and ICC_Operator_ID::Node_ID of size 12 bytes, there exists a need to map the Global_ID::Node_ID or ICC_Operator_ID::Node_ID with the local identifier of size 4 bytes (Unsigned32) value in order to index (Ingress/Egress LSR identifier) the existing mplsTunnelTable."
::= { mplsTeExtObjects 2 }mplsTunnelExtNodeConfigEntry OBJECT-TYPE
SYNTAX MplsTunnelExtNodeConfigEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents a mapping identification for the operator or service provider to a node or an LSR.-
As per RFC 6370, IP-compatible mapping is represented as Global_ID::Node_ID.
As per RFC 6923, the CC and the ICC form the ICC_Operator_ID
as CC::ICC, and ICC-compatible mapping is represented
as ICC_Operator_ID::Node_ID.
-
-
Note: Each entry in this table should have a unique [Global_ID and Node_ID] or [CC::ICC and Node_ID] combination." INDEX { mplsTunnelExtNodeConfigLocalId }
::= { mplsTunnelExtNodeConfigTable 1 }
MplsTunnelExtNodeConfigEntry ::= SEQUENCE {
mplsTunnelExtNodeConfigLocalId MplsExtendedTunnelId, mplsTunnelExtNodeConfigGlobalId MplsGlobalId, mplsTunnelExtNodeConfigCcId MplsCcId, mplsTunnelExtNodeConfigIccId MplsIccId, mplsTunnelExtNodeConfigNodeId MplsNodeId, mplsTunnelExtNodeConfigIccValid TruthValue, mplsTunnelExtNodeConfigStorageType StorageType, mplsTunnelExtNodeConfigRowStatus RowStatus } mplsTunnelExtNodeConfigLocalId OBJECT-TYPE SYNTAX MplsExtendedTunnelId MAX-ACCESS not-accessible STATUS current-
DESCRIPTION
-
"This object is used in accommodating the bigger-
size Global_ID::Node_ID and/or the ICC_Operator_ID::Node_ID with the smaller-size LSR identifier in order to index the mplsTunnelTable.
The local identifier is configured between 0 and 16777215, as the valid IP address range starts from 16777216(01.00.00.00).
This range is chosen to determine whether the mplsTunnelTable's Ingress/Egress LSR ID is an IP address or local identifier. If the configured range is not an IP address, the operator is expected to retrieve the complete information (Global_ID::Node_ID or ICC_Operator_ID::Node_ID) from mplsTunnelExtNodeConfigTable. This way, the existing mplsTunnelTable is reused for bidirectional tunnel extensions for MPLS-based transport networks.
The local identifier allows the operator to assign a unique identifier to map Global_ID::Node_ID and/or ICC_Operator_ID::Node_ID. As this local identifier is unique within the node and the same syntax of this object can be used for MPLS-TE tunnel also, it is up to the operator/local management entity to choose a non-conflicting value for indexing the MPLS and MPLS-TP tunnel entries." ::= { mplsTunnelExtNodeConfigEntry 1 } mplsTunnelExtNodeConfigGlobalId OBJECT-TYPE SYNTAX MplsGlobalId MAX-ACCESS read-create STATUS current DESCRIPTION "This object indicates the Global Operator Identifier. This object has no meaning when mplsTunnelExtNodeConfigIccValid is set true." REFERENCE "MPLS Transport Profile (MPLS-TP) Identifiers, RFC 6370, Section 3." ::= { mplsTunnelExtNodeConfigEntry 2 }mplsTunnelExtNodeConfigCcId OBJECT-TYPE
SYNTAX MplsCcId MAX-ACCESS read-create STATUS current-
-
DESCRIPTION
"This object allows the operator or service provider to
-
configure a unique MPLS-TP ITU-T Country Code (CC) either for Ingress ID or Egress ID.
-
This object has no meaning when mplsTunnelExtNodeConfigIccValid is set to false." REFERENCE "MPLS-TP Identifiers Following ITU-T Conventions, RFC 6923, Section 3" ::= { mplsTunnelExtNodeConfigEntry 3 }-
mplsTunnelExtNodeConfigIccId OBJECT-TYPE
SYNTAX MplsIccId MAX-ACCESS read-create STATUS current DESCRIPTION "This object allows the operator or service provider to configure a unique MPLS-TP ITU-T Carrier Code (ICC) either for Ingress ID or Egress ID. This object has no meaning when mplsTunnelExtNodeConfigIccValid is set to false." REFERENCE "MPLS-TP Identifiers Following ITU-T Conventions, RFC 6923, Section 3" ::= { mplsTunnelExtNodeConfigEntry 4 } mplsTunnelExtNodeConfigNodeId OBJECT-TYPE SYNTAX MplsNodeId MAX-ACCESS read-create STATUS current DESCRIPTION "This object indicates the Node_ID within the scope of a Global_ID or ICC_Operator_ID." REFERENCE "MPLS Transport Profile (MPLS-TP) Identifiers, RFC 6370, Section 4." ::= { mplsTunnelExtNodeConfigEntry 5 } mplsTunnelExtNodeConfigIccValid OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "Denotes whether or not this entry uses mplsTunnelExtNodeConfigCcId, mplsTunnelExtNodeConfigIccId, and mplsTunnelExtNodeConfigNodeId for mapping the ICC-based identifiers with the local identifier. Note that if this variable is set to false, then the mplsTunnelExtNodeConfigGlobalId and mplsTunnelExtNodeConfigNodeId objects should have the valid information." DEFVAL { false } ::= { mplsTunnelExtNodeConfigEntry 6 }-
mplsTunnelExtNodeConfigStorageType OBJECT-TYPE
SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION "This variable indicates the storage type for this object. Conceptual rows having the value 'permanent' need not allow write-access to any columnar objects in the row." DEFVAL { volatile } ::= { mplsTunnelExtNodeConfigEntry 7 }mplsTunnelExtNodeConfigRowStatus OBJECT-TYPE
SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object allows the operator to create, modify, and/or delete a row in this table." ::= { mplsTunnelExtNodeConfigEntry 8 }-- End of MPLS Transport Profile Node configuration table
-- Start of MPLS Transport Profile Node IP-compatible -- mapping table
mplsTunnelExtNodeIpMapTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsTunnelExtNodeIpMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This read-only table allows the operator to retrieve the local identifier for a given Global_ID::Node_ID in an IP-compatible operator environment. This table MAY be used in on-demand and/or proactive OAM operations to get the Ingress/Egress LSR identifier -
(local identifier) from Src-Global_Node_ID
or Dst-Global_Node_ID. The Ingress and Egress LSR
identifiers are used to retrieve the tunnel entry.
-
This table returns nothing when the associated entry is not defined in mplsTunnelExtNodeConfigTable." ::= { mplsTeExtObjects 3 }mplsTunnelExtNodeIpMapEntry OBJECT-TYPE
SYNTAX MplsTunnelExtNodeIpMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents a mapping of Global_ID::Node_ID with the local identifier.
An entry in this table is created automatically when
the local identifier is associated with Global_ID and
Node_Id in the mplsTunnelExtNodeConfigTable.
-
Note: Each entry in this table should have a unique Global_ID and Node_ID combination." INDEX { mplsTunnelExtNodeIpMapGlobalId, mplsTunnelExtNodeIpMapNodeId } ::= { mplsTunnelExtNodeIpMapTable 1 } MplsTunnelExtNodeIpMapEntry ::= SEQUENCE { mplsTunnelExtNodeIpMapGlobalId MplsGlobalId, mplsTunnelExtNodeIpMapNodeId MplsNodeId, mplsTunnelExtNodeIpMapLocalId MplsExtendedTunnelId } mplsTunnelExtNodeIpMapGlobalId OBJECT-TYPE SYNTAX MplsGlobalId MAX-ACCESS not-accessible STATUS current DESCRIPTION "This object indicates the Global_ID." ::= { mplsTunnelExtNodeIpMapEntry 1 } mplsTunnelExtNodeIpMapNodeId OBJECT-TYPE SYNTAX MplsNodeId MAX-ACCESS not-accessible STATUS current DESCRIPTION "This object indicates the Node_ID within the operator." ::= { mplsTunnelExtNodeIpMapEntry 2 } mplsTunnelExtNodeIpMapLocalId OBJECT-TYPE SYNTAX MplsExtendedTunnelId MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains an IP-compatible local identifier that is defined in mplsTunnelExtNodeConfigTable." ::= { mplsTunnelExtNodeIpMapEntry 3 }-- End MPLS Transport Profile Node IP compatible table
-- Start of MPLS Transport Profile Node ICC based table
mplsTunnelExtNodeIccMapTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsTunnelExtNodeIccMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This read-only table allows the operator to retrieve the local identifier for a given ICC_Operator_ID::Node_ID in an ICC operator environment. This table MAY be used in on-demand and/or proactive OAM operations to get the Ingress/Egress LSR identifier (local identifier) from Src-ICC or Dst-ICC. The Ingress and Egress LSR identifiers are used to retrieve the tunnel entry. This table returns nothing when the associated entry is not defined in mplsTunnelExtNodeConfigTable." ::= { mplsTeExtObjects 4 }mplsTunnelExtNodeIccMapEntry OBJECT-TYPE
SYNTAX MplsTunnelExtNodeIccMapEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents a mapping of ICC_Operator_ID::Node_ID with the local identifier.-
-
An entry in this table is created automatically when the local identifier is associated with ICC_Operator_ID::Node_ID in the mplsTunnelExtNodeConfigTable."
-
INDEX { mplsTunnelExtNodeIccMapCcId, mplsTunnelExtNodeIccMapIccId, mplsTunnelExtNodeIccMapNodeId } ::= { mplsTunnelExtNodeIccMapTable 1 } MplsTunnelExtNodeIccMapEntry ::= SEQUENCE { mplsTunnelExtNodeIccMapCcId MplsCcId, mplsTunnelExtNodeIccMapIccId MplsIccId, mplsTunnelExtNodeIccMapNodeId MplsNodeId, mplsTunnelExtNodeIccMapLocalId MplsExtendedTunnelId }mplsTunnelExtNodeIccMapCcId OBJECT-TYPE
SYNTAX MplsCcId MAX-ACCESS not-accessible STATUS current DESCRIPTION "This object allows the operator or service provider to configure a unique MPLS-TP ITU-T Country Code (CC) either for Ingress or Egress LSR ID.
The CC is a string of two alphabetic characters
represented with uppercase letters (i.e., A-Z)."
::= { mplsTunnelExtNodeIccMapEntry 1 }
-
-
-
mplsTunnelExtNodeIccMapIccId OBJECT-TYPE
-
SYNTAX MplsIccId MAX-ACCESS not-accessible STATUS current DESCRIPTION "This object allows the operator or service provider to configure a unique MPLS-TP ITU-T Carrier Code (ICC) either for Ingress or Egress LSR ID. The ICC is a string of one to six characters, each character being either alphabetic (i.e., A-Z) or numeric (i.e., 0-9) characters. Alphabetic characters in the ICC should be represented with uppercase letters." ::= { mplsTunnelExtNodeIccMapEntry 2 } mplsTunnelExtNodeIccMapNodeId OBJECT-TYPE SYNTAX MplsNodeId MAX-ACCESS not-accessible STATUS current DESCRIPTION "This object indicates the Node_ID within the ICC-based operator." ::= { mplsTunnelExtNodeIccMapEntry 3} mplsTunnelExtNodeIccMapLocalId OBJECT-TYPE SYNTAX MplsExtendedTunnelId MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains an ICC-based local identifier that is defined in mplsTunnelExtNodeConfigTable." ::= { mplsTunnelExtNodeIccMapEntry 4 }-- End MPLS Transport Profile Node ICC-based table
-- Start of MPLS Tunnel table extension
mplsTunnelExtTable OBJECT-TYPE
SYNTAX SEQUENCE OF MplsTunnelExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table represents extensions to mplsTunnelTable in order to support MPLS-TP Tunnels.-
As per MPLS-TP Identifiers (RFC 6370), LSP_ID for IP-based co-routed bidirectional tunnel:
A1-{Global_ID::Node_ID::Tunnel_Num}::Z9-{Global_ID:: Node_ID::Tunnel_Num}::LSP_Num LSP_ID for IP based associated bidirectional tunnel: A1-{Global_ID::Node_ID::Tunnel_Num::LSP_Num}:: Z9-{Global_ID::Node_ID::Tunnel_Num::LSP_Num}-
mplsTunnelTable is reused for forming the LSP_ID as follows:
Source Tunnel_Num is mapped with mplsTunnelIndex, Source Node_ID is mapped with mplsTunnelIngressLSRId, Destination Node_ID is
mapped with mplsTunnelEgressLSRId, and LSP_Num is mapped with mplsTunnelInstance.
Source Global_ID::Node_ID and/or ICC_Operator_ID::Node_ID and Destination Global_ID::Node_ID and/or ICC_Operator_ID::Node-ID are maintained in the mplsTunnelExtNodeConfigTable. mplsTunnelExtNodeConfigLocalId is used to create an entry in mplsTunnelTable." REFERENCE "MPLS Transport Profile (MPLS-TP) Identifiers, RFC 6370." ::= { mplsTeExtObjects 5 } mplsTunnelExtEntry OBJECT-TYPE SYNTAX MplsTunnelExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table represents additional MPLS-TP- specific tunnel configurations." INDEX { mplsTunnelIndex, mplsTunnelInstance, mplsTunnelIngressLSRId, mplsTunnelEgressLSRId } ::= { mplsTunnelExtTable 1 } MplsTunnelExtEntry ::= SEQUENCE { mplsTunnelExtOppositeDirPtr RowPointer, mplsTunnelExtOppositeDirTnlValid TruthValue, mplsTunnelExtDestTnlIndex MplsTunnelIndex, mplsTunnelExtDestTnlLspIndex MplsTunnelInstanceIndex, mplsTunnelExtDestTnlValid TruthValue, mplsTunnelExtIngressLSRLocalIdValid TruthValue, mplsTunnelExtEgressLSRLocalIdValid TruthValue } mplsTunnelExtOppositeDirPtr OBJECT-TYPE SYNTAX RowPointer MAX-ACCESS read-create STATUS current DESCRIPTION "This object points to the opposite-direction tunnel entry." ::= { mplsTunnelExtEntry 1 } mplsTunnelExtOppositeDirTnlValid OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "Denotes whether or not this tunnel uses mplsTunnelExtOppositeDirPtr for identifying the opposite- direction tunnel information. Note that if this variable is set to true, then the mplsTunnelExtOppositeDirPtr should point to the first accessible row of the valid opposite- direction tunnel."-
DEFVAL { false }
::= { mplsTunnelExtEntry 2 } mplsTunnelExtDestTnlIndex OBJECT-TYPE SYNTAX MplsTunnelIndex MAX-ACCESS read-create STATUS current DESCRIPTION "This object is applicable only for the bidirectional tunnel that has the forward and reverse LSPs in the different tunnel entries.-
-
The values of this object and the mplsTunnelExtDestTnlLspIndex object together can be used to identify an opposite-direction LSP, i.e., if the mplsTunnelIndex and mplsTunnelInstance hold the value for forward LSP, this object and mplsTunnelExtDestTnlLspIndex can be used to retrieve the reverse-direction LSP and vice versa.
-
This object and mplsTunnelExtDestTnlLspIndex values provide the first two indices of tunnel entry, and the remaining indices can be derived as follows: the Ingress and Egress Identifiers should be swapped in order to index the other direction tunnel." ::= { mplsTunnelExtEntry 3 } mplsTunnelExtDestTnlLspIndex OBJECT-TYPE SYNTAX MplsTunnelInstanceIndex MAX-ACCESS read-create STATUS current DESCRIPTION "This object is applicable only for the bidirectional tunnel that has the forward and reverse LSPs in the different tunnel entries. This object holds the instance index of the opposite-direction tunnel." ::= { mplsTunnelExtEntry 4 } mplsTunnelExtDestTnlValid OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "Denotes whether or not this tunnel uses mplsTunnelExtDestTnlIndex and mplsTunnelExtDestTnlLspIndex for identifying the opposite-direction tunnel information. Note that if this variable is set to true, then the mplsTunnelExtDestTnlIndex and mplsTunnelExtDestTnlLspIndex objects should have the valid opposite-direction tunnel indices." DEFVAL { false } ::= { mplsTunnelExtEntry 5 }mplsTunnelExtIngressLSRLocalIdValid OBJECT-TYPE
SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "This object denotes whether the mplsTunnelIngressLSRId contains the local value that is used to reference the complete Ingress Global_ID::Node_ID or ICC_Operator_ID from the mplsTunnelExtNodeConfigTable.-
-
If this object is set to FALSE, mplsTunnelExtNodeConfigTable will not contain an entry to reference the local identifier with Global_ID::Node_ID or ICC_Operator_ID::Node_ID value.
-
This object is set to FALSE for legacy implementations like MPLS TE tunnels where mplsTunnelIngressId itself provides the complete Ingress LSR ID." REFERENCE "MPLS-TE-STD-MIB (RFC 3812), Section 11. mplsTunnelIngressLSRId object in mplsTunnelTable." DEFVAL { false } ::= { mplsTunnelExtEntry 6 }mplsTunnelExtEgressLSRLocalIdValid OBJECT-TYPE
SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "This object denotes whether the mplsTunnelEgressLSRId contains the local value, which is used to reference the complete Egress Global_ID::Node_ID or ICC_Operator_ID::Node_ID from the mplsTunnelExtNodeConfigTable.-
-
If this object is set to FALSE, mplsTunnelExtNodeConfigTable will not contain an entry to reference the local identifier with Global_ID::Node_ID or ICC_Operator_ID::Node_ID value.
This object is set to FALSE for legacy implementations like MPLS TE tunnels where mplsTunnelEgressId itself provides the complete Egress LSR ID."
-
REFERENCE "MPLS-TE-STD-MIB (RFC 3812), Section 11. mplsTunnelEgressLSRId object in mplsTunnelTable." DEFVAL { false } ::= { mplsTunnelExtEntry 7 }-- End of MPLS Tunnel table extension
-- Module compliance.
mplsTeExtCompliances
OBJECT IDENTIFIER ::= { mplsTeExtConformance 1 }mplsTeExtGroups
OBJECT IDENTIFIER ::= { mplsTeExtConformance 2 }-- Compliance requirement for fully compliant implementations.
mplsTeExtModuleFullCompliance MODULE-COMPLIANCE
-
STATUS current
DESCRIPTION-
"Compliance statement for agents that provide full
-
support the MPLS-TE-EXT-STD-MIB module."
-
MODULE -- this module
-
-- The mandatory group has to be implemented by all -- LSRs that originate/terminate MPLS-TP Tunnels.
-- In addition, depending on the type of tunnels -- supported, other groups become mandatory as -- explained below.
-
MANDATORY-GROUPS { mplsTunnelExtGroup }-
-
GROUP mplsTunnelExtIpOperatorGroup
DESCRIPTION
-
-
"This group is mandatory for devices that support
configuration of IP-based identifier tunnels."
-
-
-
GROUP mplsTunnelExtIccOperatorGroup
DESCRIPTION-
"This group is mandatory for devices that support
configuration of ICC based tunnels."
-
-
::= { mplsTeExtCompliances 1 }-- Compliance requirement for read-only implementations.
mplsTeExtModuleReadOnlyCompliance MODULE-COMPLIANCE
-
STATUS current
DESCRIPTION
-
"Compliance statement for agents that only provide
read-only support for the MPLS-TE-EXT-STD-MIB module."
-
-
MODULE -- this module
MANDATORY-GROUPS { mplsTunnelExtGroup }GROUP mplsTunnelExtIpOperatorGroup
DESCRIPTION-
"This group is mandatory for devices that support
configuration of IP-based identifier tunnels."
GROUP mplsTunnelExtIccOperatorGroup
DESCRIPTION-
"This group is mandatory for devices that support
configuration of ICC-based tunnels."
-- mplsTunnelExtTable OBJECT mplsTunnelExtOppositeDirPtr MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtOppositeDirTnlValid MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtDestTnlIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtDestTnlLspIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtDestTnlValid MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtIngressLSRLocalIdValid MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtEgressLSRLocalIdValid MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtNodeConfigGlobalId MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtNodeConfigNodeId MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtNodeConfigStorageType MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtNodeConfigRowStatus SYNTAX RowStatus { active(1) } MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtNodeConfigCcId MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtNodeConfigIccId MIN-ACCESS read-only DESCRIPTION "Write access is not required." OBJECT mplsTunnelExtNodeConfigIccValid MIN-ACCESS read-only DESCRIPTION "Write access is not required." ::= { mplsTeExtCompliances 2 }-
-- Units of conformance.
mplsTunnelExtGroup OBJECT-GROUP
OBJECTS { mplsTunnelExtOppositeDirPtr, mplsTunnelExtOppositeDirTnlValid, mplsTunnelExtDestTnlIndex, mplsTunnelExtDestTnlLspIndex, mplsTunnelExtDestTnlValid, mplsTunnelExtIngressLSRLocalIdValid, mplsTunnelExtEgressLSRLocalIdValid } STATUS current DESCRIPTION "Necessary, but not sufficient, set of objects to implement tunnels. In addition, depending on the operating environment, the following groups are mandatory." ::= { mplsTeExtGroups 1 } mplsTunnelExtIpOperatorGroup OBJECT-GROUP OBJECTS { mplsTunnelExtNodeConfigLocalIdNext, mplsTunnelExtNodeConfigGlobalId, mplsTunnelExtNodeConfigNodeId, mplsTunnelExtNodeIpMapLocalId, mplsTunnelExtNodeConfigStorageType, mplsTunnelExtNodeConfigRowStatus } STATUS current DESCRIPTION "Object(s) needed to implement IP-compatible tunnels." ::= { mplsTeExtGroups 2 } mplsTunnelExtIccOperatorGroup OBJECT-GROUP OBJECTS { mplsTunnelExtNodeConfigLocalIdNext, mplsTunnelExtNodeConfigCcId, mplsTunnelExtNodeConfigIccId, mplsTunnelExtNodeConfigNodeId, mplsTunnelExtNodeConfigIccValid, mplsTunnelExtNodeIccMapLocalId, mplsTunnelExtNodeConfigStorageType, mplsTunnelExtNodeConfigRowStatus } STATUS current DESCRIPTION "Object(s) needed to implement ICC-based tunnels." ::= { mplsTeExtGroups 3 } -- MPLS-TE-EXT-STD-MIB module ends END -
14. Security Considerations
-
This document follows the security considerations mentioned in Section 12 of [RFC3812]. These security considerations are also applicable to the MIB objects and tables defined in this document, which are identified as below.
- The common objects mplsIdGlobalId, mplsIdNodeId, mplsIdCc, and mplsIdIcc are used to define the identity of an MPLS-TP node for OAM purposes. If write-access is allowed to these objects it offers the possibility for incorrect values to be entered that will confuse the information returned by OAM functions and possibly prevent OAM from operating correctly. Furthermore, there is the possibility of inducing one node to impersonate another with confusing results.- mplsTunnelExtNodeConfigTable, mplsTunnelExtTable and mplsXCExtTable collectively contain objects to provision MPLS-TP Tunnels, tunnel hops, and tunnel resources.
Some of the readable objects in this MIB module (i.e., objects with a MAX-ACCESS other than not-accessible) may be considered sensitive or vulnerable in some network environments. It is thus important to control even GET and/or NOTIFY access to these objects and possibly to even encrypt the values of these objects when sending them over the network via SNMP. These are the tables and objects and their sensitivity/vulnerability:
- mplsTunnelExtNodeConfigTable, mplsTunnelExtTable, and mplsXCExtTable collectively show the characteristics of the MPLS-TP tunnel network topology. If an Administrator does not want to reveal this information, then these tables should be considered sensitive/vulnerable.
SNMP versions prior to SNMPv3 did not include adequate security. Even if the network itself is secure (for example by using 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 module.
Implementations SHOULD provide the security features described by the SNMPv3 framework (see [RFC3410]), and implementations claiming compliance to the SNMPv3 standard MUST include full support for authentication and privacy via the User-based Security Model (USM) [RFC3414] with the AES cipher algorithm [RFC3826]. Implementations MAY also provide support for the Transport Security Model (TSM) [RFC5591] in combination with a secure transport such as SSH [RFC5592] or TLS/DTLS [RFC6353].
Further, deployment of SNMP versions prior to SNMPv3 is NOT RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to enable cryptographic security. It is then a customer/operator responsibility to ensure that the SNMP entity giving access to an instance of this MIB module 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.
15. IANA Considerations
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As described in [RFC4221] and [RFC6639], and as requested in the MPLS-TC-STD-MIB [RFC3811], MPLS-related Standards Track MIB modules should be rooted under the mplsStdMIB subtree. There are four MPLS MIB modules contained in this document; each of the following subsections lists a new assignment made by IANA under the mplsStdMIB subtree. New assignments can only be made via a Standards Action as specified in [RFC5226].
15.1. IANA Considerations for MPLS-TC-EXT-STD-MIB
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IANA has assigned the OID { mplsStdMIB 17 } to the MPLS-TC-EXT-STD-MIB module specified in this document.
15.2. IANA Considerations for MPLS-ID-STD-MIB
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IANA has assigned the OID { mplsStdMIB 18 } to the MPLS-ID-STD-MIB module specified in this document.
15.3. IANA Considerations for MPLS-LSR-EXT-STD-MIB
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IANA has assigned the OID { mplsStdMIB 19 } to the MPLS-LSR-EXT-STD-MIB module specified in this document.
15.4. IANA Considerations for MPLS-TE-EXT-STD-MIB
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IANA has assigned the OID { mplsStdMIB 20 } to the MPLS-TE-EXT-STD-MIB module specified in this document.
16. References
16.1. Normative References
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[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997, <http://www.rfc-editor.org/info/rfc2119>. [RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Structure of Management Information Version 2 (SMIv2)", STD 58, RFC 2578, April 1999, <http://www.rfc-editor.org/info/rfc2578>. [RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999, <http://www.rfc-editor.org/info/rfc2579>. [RFC2580] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999, <http://www.rfc-editor.org/info/rfc2580>. [RFC3031] Rosen, E., Viswanathan, A., and R. Callon, "Multiprotocol Label Switching Architecture", RFC 3031, January 2001, <http://www.rfc-editor.org/info/rfc3031>. [RFC3289] Baker, F., Chan, K., and A. Smith, "Management Information Base for the Differentiated Services Architecture", RFC 3289, May 2002, <http://www.rfc-editor.org/info/rfc3289>. [RFC3811] Nadeau, T., Ed., and J. Cucchiara, Ed., "Definitions of Textual Conventions (TCs) for Multiprotocol Label Switching (MPLS) Management", RFC 3811, June 2004, <http://www.rfc-editor.org/info/rfc3811>. [RFC3812] Srinivasan, C., Viswanathan, A., and T. Nadeau, "Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) Management Information Base (MIB)", RFC 3812, June 2004, <http://www.rfc-editor.org/info/rfc3812>. [RFC3813] Srinivasan, C., Viswanathan, A., and T. Nadeau, "Multiprotocol Label Switching (MPLS) Label Switching Router (LSR) Management Information Base (MIB)", RFC 3813, June 2004, <http://www.rfc-editor.org/info/rfc3813>. [RFC4802] Nadeau, T., Ed., and A. Farrel, Ed., "Generalized Multiprotocol Label Switching (GMPLS) Traffic Engineering Management Information Base", RFC 4802, February 2007, <http://www.rfc-editor.org/info/rfc4802>. [RFC6370] Bocci, M., Swallow, G., and E. Gray, "MPLS Transport Profile (MPLS-TP) Identifiers", RFC 6370, September 2011, <http://www.rfc-editor.org/info/rfc6370>. [RFC6923] Winter, R., Gray, E., van Helvoort, H., and M. Betts, "MPLS Transport Profile (MPLS-TP) Identifiers Following ITU-T Conventions", RFC 6923, May 2013, <http://www.rfc-editor.org/info/rfc6923>. [T.50] ITU-T, "International Reference Alphabet (IRA) (Formerly International Alphabet No. 5 or IA5) - Information technology - 7-bit coded character set for information exchange", ITU-T Recommendation T.50, September 1992.
16.2. Informative References
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[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction and Applicability Statements for Internet- Standard Management Framework", RFC 3410, December 2002, <http://www.rfc-editor.org/info/rfc3410>. [RFC3414] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", STD 62, RFC 3414, December 2002, <http://www.rfc-editor.org/info/rfc3414>. [RFC3826] Blumenthal, U., Maino, F., and K. McCloghrie, "The Advanced Encryption Standard (AES) Cipher Algorithm in the SNMP User-based Security Model", RFC 3826, June 2004, <http://www.rfc-editor.org/info/rfc3826>. [RFC4221] Nadeau, T., Srinivasan, C., and A. Farrel, "Multiprotocol Label Switching (MPLS) Management Overview", RFC 4221, November 2005, <http://www.rfc-editor.org/info/rfc4221>. [RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 5226, May 2008, <http://www.rfc-editor.org/info/rfc5226>. [RFC5591] Harrington, D. and W. Hardaker, "Transport Security Model for the Simple Network Management Protocol (SNMP)", STD 78, RFC 5591, June 2009, <http://www.rfc-editor.org/info/rfc5591>. [RFC5592] Harrington, D., Salowey, J., and W. Hardaker, "Secure Shell Transport Model for the Simple Network Management Protocol (SNMP)", RFC 5592, June 2009, <http://www.rfc-editor.org/info/rfc5592>. [RFC5654] Niven-Jenkins, B., Ed., Brungard, D., Ed., Betts, M., Ed., Sprecher, N., and S. Ueno, "Requirements of an MPLS Transport Profile", RFC 5654, September 2009, <http://www.rfc-editor.org/info/rfc5654>. [RFC6353] Hardaker, W., "Transport Layer Security (TLS) Transport Model for the Simple Network Management Protocol (SNMP)", STD 78, RFC 6353, July 2011, <http://www.rfc-editor.org/info/rfc6353>. [RFC6639] King, D., Ed., and M. Venkatesan, Ed., "Multiprotocol Label Switching Transport Profile (MPLS-TP) MIB-Based Management Overview", RFC 6639, June 2012, <http://www.rfc-editor.org/info/rfc6639>.
Acknowledgments
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The authors would like to thank Francesco Fondelli, Josh Littlefield, Agrahara Kiran Koushik, Metrri Jain, Muly Ilan, Randy Presuhn, Elwyn Davies, Tom Taylor, and Pete Resnick for their valuable reviews and comments. A special thanks to Joan Cucchiara and Adrian Farrel for really getting the MIB modules into shape.
Authors' Addresses
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Venkatesan Mahalingam
Dell Inc.
5450 Great America Parkway,
Santa Clara, CA 95054
United States
EMail: venkat.mahalingams@gmail.comSam Aldrin Huawei Technologies 2330 Central Express Way, Santa Clara, CA 95051 United States EMail: aldrin.ietf@gmail.com Thomas D. Nadeau Brocade EMail: tnadeau@lucidvision.com Kannan KV Sampath Redeem India EMail: kannankvs@gmail.com