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Nokia 7705 SAR-W Series Manual

Nokia 7705 SAR-W Series Manual

Service aggregation router, mpls
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Table of Contents

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MPLS Guide
7705 SERVICE AGGREGATION
ROUTER | RELEASE 22.10.R1
MPLS Guide
3HE 18686 AAAB TQZZA
Edition: 01
October 2022
© 2022 Nokia.
Use subject to Terms available at: www.nokia.com

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  • Page 1 MPLS Guide 7705 SERVICE AGGREGATION ROUTER | RELEASE 22.10.R1 MPLS Guide 3HE 18686 AAAB TQZZA Edition: 01 October 2022 © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 2 Nokia Group of Companies. Use this document as agreed. You agree to notify Nokia of any errors you may find in this document; however, should you elect to use this document for...

  • Page 3: Table Of Contents

    RSVP-TE Message Pacing ...............50 3.4.1.5 RSVP-TE Overhead Refresh Reduction ...........51 3.4.1.6 RSVP-TE Reservation Styles ..............52 3.4.1.7 Implicit Null Label ..................52 3.4.1.8 RSVP-TE Entropy Labels ................53 LSP Redundancy..................54 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 4 Static Route Resolution Using SR-TE LSPs ...........112 3.12.8 BGP Label Route Resolution Using SR-TE LSPs ........113 3.12.9 Service Packet Forwarding Using SR-TE LSPs ........113 3.12.10 Data Path Support ...................115 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 5 Configuring Path Computation and Control for SR-TE LSPs ....................150 3.23.3.1 Configuring Path Profile and Group for PCC-initiated and PCE- computed/controlled LSPs...............150 3.23.4 Configuring SR-TE LSP Label Stack Size..........151 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 6 LSP Path Diversity and Bidirectionality Constraints ........334 NSP and VSR-NRC PCE Redundancy ...........337 4.7.1 Feature Configuration................337 4.7.2 NSP Ecosystem Redundancy ..............337 4.7.2.1 NSP Cluster Redundancy................339 4.7.2.2 VSR-NRC Redundancy ................339 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 7 TTL Propagation and ICMP Tunneling ............393 5.1.15 LDP FRR Remote LFA and TI-LFA Backup Using an SR Tunnel for IPv4 /32 Prefixes (IS-IS) ................393 5.1.15.1 Feature Behavior ..................394 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 8 Applying Import and Export Policies............434 5.10.4 Configuring Interface Parameters............435 5.10.5 Specifying Targeted Session Parameters ..........436 5.10.6 Specifying Peer Parameters..............437 5.10.7 Configuring LDP Support for Multicast VPN (MVPN) ......438 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 9 5.12.2 Command Descriptions ................453 5.12.2.1 Configuration Commands................454 5.12.2.2 Show Commands ..................482 5.12.2.3 Clear Commands..................538 5.12.2.4 Monitor Commands .................540 5.12.2.5 Debug Commands...................548 Supported Standards and Protocols ........579 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 10 MPLS Guide © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 11 PCEP Path Profile Extension Objects and TLVs ........335 Table 36 PCEP PCC Field Descriptions ...............359 Table 37 PCEP PCC Peer Field Descriptions ............362 Table 38 PCEP PCC Status Field Descriptions ...........364 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 12 LDP Status Field Descriptions ...............497 Table 49 LDP Targeted Peer Field Descriptions ...........500 Table 50 LDP Bindings Field Descriptions ............507 List of Acronyms ................553 Table 51 Acronyms ....................553 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 13 Figure 34 LDP IPv6 Address and FEC Distribution Procedure .......419 Figure 35 Smooth Management Transition From IPv4 to IPv6 .......426 Figure 36 LDP Configuration and Implementation...........427 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 14 MPLS Guide © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 15: Preface

    Concepts described in this guide include the following: • Multiprotocol Label Switching (MPLS) • Resource Reservation Protocol for Traffic Engineering (RSVP-TE) • Label Distribution Protocol (LDP) 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 16: Technical Support

    If you purchased a Nokia service agreement, follow this link to contact a Nokia support representative and to access product manuals and documentation updates: Product Support Portal ©...

  • Page 17: 7705 Sar Mpls Configuration Process

    Configure PCEP parameters PCEP Configure LDP parameters Label Distribution Protocol Reference List of security and telecom Supported Standards and Protocols standards, supported protocols, and proprietary MIBs 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 18 7705 SAR MPLS Configuration Process MPLS Guide © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 19: Mpls And Rsvp-Te

    MPLS Service Usage • MPLS and RSVP-TE Configuration Process Overview • Configuration Notes • Configuring MPLS and RSVP-TE with CLI • MPLS and RSVP-TE Command Reference 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 20: Overview

    CSPF will constrain the alternate route to be the shortest possible alternative route. There may be more than one alternative route. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 21: Mpls

    IP destination address. The physical path of the LSP is not constrained to the shortest path that the IGP would choose using SPF to reach the destination IP address. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 22: Te Metric And Igp Metric

    SPF computation for IP reachability. Operational metrics of LSPs that use the TE metric in CSPF path calculations can be overridden with the user-configured administrative LSP metric. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 23: Mpls Label Stack

    This bit is set to 1 for the last entry (bottom) in the label stack and 0 for all other label stack entries. This 8-bit field is used to encode a time-to-live value. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 24: Label Values

    IPv4 header, in which case the packet forwarding is based on the IPv4 header. If the IPv4 Explicit NULL label is not at the bottom of the label stack, then the packet forwarding is based on the subsequent label. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 25: Table 3 Ingress Label Values (Pop Labels)

    1. In addition, users can define part of the dynamic label range from 18 432 to 131 071 to be the range of labels for the segment routing global block (SRGB). 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 26: Mpls Entropy Labels

    For more information on hashing inputs, see the “Per-Flow Hashing” section in the 7705 SAR Interface Configuration Guide. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 27 LSP (for example, due to switching from a primary path with entropy label capability enabled to a secondary path for which the far end has not signaled entropy label capability). 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 28: Table 5 Summary Of Entropy Label Support

    LDP over IGP shortcut (RSVP) IGP shortcut (SR) LDP FRR over RSVP LDP stitching over SR (SR to LDP) LDP stitching over SR (LDP to SR) BGP LU © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 29: Inserting And Processing The Entropy Label

    LSPs in a hierarchy (for example, LDP over RSVP-TE), the router only inserts a single EL/ELI pair within the innermost LSP label closest to the service payload that has advertised entropy label capability. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 30 If an ELI is popped that has the bottom of stack (BoS) bit set, the system will discard the packet. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 31: Entropy Label On Oam Packets

    The iLER inserts the ELI and the EL into the label stack. The entropy label value is based on the service ID for point-to-point Layer 2 services. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 32: Figure 3 Entropy Label And Load Balancing

    Figure 3 Node B 7705 SAR-8 7705 SAR-18 7705 SAR-8 iLER LSR_1 eLER 26222 At the ingress LER: config>service>cpipe>spoke-sdp>entropy-label config>service>epipe>spoke-sdp>entropy-label config>service>ipipe>spoke-sdp>entropy-label config>service>vpls>spoke-sdp>entropy-label config>service>vpls>mesh-sdp>entropy-label config>service>vprn>entropy-label config>service>vprn>interface>spoke-sdp>entropy-label config>router>isis>segment-routing>entropy-label config>router>ospf>segment-routing>entropy-label © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 33: Label Edge And Label Switch Routers

    LSPs, depending on the network design. Constrained-path LSPs are signaled and are confined to one Interior Gateway Protocol (IGP) area. These LSPs cannot cross an autonomous system (AS) boundary. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 34: Lsp Types

    LSP. This can cause some of the detour routes to fail, but the original LSP is not impacted. For more information on FRR, see RSVP-TE Fast Reroute (FRR). © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 35 LSP. The following warning message is displayed: “The fast reroute bandwidth command is not supported in this release.” 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 36: Rsvp And Rsvp-Te

    • The eLER sends label binding information in the RESV messages in response to PATH messages received. • The LSP is considered operational when the iLER receives the label binding information. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 37: Figure 4 Establishing Lsps

    • record route object (RRO) — allows the iLER to receive a listing of the LSRs that the LSP tunnel actually traverses • session attribute object — controls the path setup priority, holding priority, and local rerouting features 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 38: Using Rsvp-Te For Mpls

    LSP that traverses only those links that are part of an administrative group (admin groups are described in the following list). © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 39: Hello Protocol

    LSR discards the state because it assumes that either the neighbor node has been lost or its RSVP-TE state information has been reset. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 40: Authentication

    The following items are stored in the context of this security association: • the HMAC-MD5 authentication algorithm • the key used with the authentication algorithm © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 41 7705 SAR System Management Guide, “TCP Enhanced Authentication and Keychain Authentication”. The keychain is then associated with an RSVP-TE interface with the auth-keychain command. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 42: Non-Router Id Addresses As Destinations And Hops

    ID of the node, the CSPF path may use any TE-enabled link to the downstream node based on best cost. If the hop is “strict” and does not correspond to the router ID of the node, CSPF will fail. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 43: Rsvp Lsp And Ldp Fec Statistics

    RSVP LSP or LDP FEC statistics collection record is included in the default accounting policy or in a user-defined accounting policy using the following commands: 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 44: Configuring Rsvp Lsp Statistics At Ingress Ler

    The LSP counters are maintained over the lifetime of the LSP as long as statistics are enabled. The user can clear the counters with the clear>router>mpls>lsp-egress-stats [lsp-name] command. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 45: Configuring Rsvp Lsp Statistics At Egress Ler

    LSP. The active path can be the primary path, one of the secondary paths, the FRR detour path, or the FRR bypass path when the tail-end node is also the MP. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 46: Configuring Ldp Fec Statistics

    LDP FEC with the config>router>ldp>egress- statistics>fec-prefix>shutdown command. Statistics collection applies to prefix FECs imported from both LDP neighbors and T- LDP neighbors. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 47 The LDP FEC counters are maintained over the lifetime of the FEC as long as statistics are enabled. The user can clear the counters with the clear>router>ldp>fec-egress-statistics command. For more information about LDP FEC statistics commands, see LDP Command Reference. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 48: Rsvp-Te Signaling

    Timers • LSP Resignal Limit • RSVP-TE Message Pacing • RSVP-TE Overhead Refresh Reduction • RSVP-TE Reservation Styles • Implicit Null Label • RSVP-TE Entropy Labels © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 49: Bidirectional Forwarding Detection

    LSP continues to use the existing path and another resignal attempt is made the next time the timer expires. When the resignal timer expires, a trap and syslog message are generated. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 50: Lsp Resignal Limit

    Note: Typically, a tier-1 node is an aggregator of tier-2 node transmissions, which is an aggregator of tier-3 node transmissions. Tier-1 nodes are often installed at an MTSO, while tier-3 nodes are often installed at cell sites. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 51: Rsvp-Te Overhead Refresh Reduction

    7705 SAR node does not attempt to send summary refresh messages. Also, reliable delivery of RSVP-TE messages over the RSVP-TE interface can be enabled using the reliable-delivery option. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 52: Rsvp-Te Reservation Styles

    RSVP-TE LSPs for which the router is the eLER by using the implicit-null-label command in the config>router>rsvp context. RSVP-TE must be shut down before this command can be used. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 53: Rsvp-Te Entropy Labels

    The RSVP-TE interface must be shut down before this command can be used. 3.4.1.8 RSVP-TE Entropy Labels The 7705 SAR supports entropy labels as described in MPLS Entropy Labels. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 54: Lsp Redundancy

    If a path-preference priority value is configured for standby secondary LSP paths, the standby secondary LSP configured with the highest path priority becomes the active LSP when the primary LSP fails. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 55: Make-Before-Break (Mbb) Procedures For Lsp And Path Parameter Configuration Changes

    • changing the LSP-level and path-level hop-limit parameter values • enabling or disabling primary or secondary path record or record-label options The MBB procedure is not supported on a manual bypass LSP. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 56: Automatic Creation Of Rsvp-Te Lsps

    Upon creation of the template, CSPF is automatically enabled and cannot be disabled. The template must also reference a default path before it can be placed in a no shutdown state. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 57 ID matching an address in the prefix list appears in the TE database. The TE database provides the trigger to MPLS. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 58: Multi-Area And Multi-Instance Support

    In this case, an instance of an LSP can be signaled to each router ID with a CSPF path computed using TE links within each instance. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 59: Mesh Lsp Name Encoding

    The template must also reference a default path before it can be placed in the no shutdown state. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 60 ID will cause the router ID to be removed from the ingress LER node immediately after the last IGP adjacency is lost and not be subject to time-out as it is for a non-directly connected destination router. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 61: Automatic Abr Selection For Inter-Area Lsps

    TE information for links in another area are not available. Figure 6 illustrates the role of each node in the signaling of an inter-area LSP with automatic ABR selection. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 62: Figure 6 Automatic Abr Selection For Inter-Area Lsp

    ABR that advertised a prefix matching the first- hop address that is not in the area of the ingress LER. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 63: Rerouting Of Inter-Area Lsps

    LER performs a Global Revertive MBB procedure to optimize the LSP primary path via the ABR that currently has the best path for the destination prefix of the LSP. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 64: Behavior Of Mpls Options In Inter-Area Lsps

    ABR selection feature. When this option is enabled, CSPF applies the least-fill criterion to select the path segment to the exit ABR in the local area. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 65: Inter-Area Lsp Support Of Ospf Virtual Links

    LSP to provide ABR protection. Figure 7 illustrates the role of each node in ABR protection using a dynamic bypass LSP. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 66: Figure 7 Abr Protection Using Dynamic Bypass Lsp

    Session Attribute object of the bypass LSP. Otherwise, the PLR signals the dynamic bypass directly to the merge point node with no XRO in the PATH message. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 67 7705 SAR. In other words, the 7705 SAR, working as a transit ABR for the detour path, rejects the signaling of an inter-area detour backup LSP. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 68: Preference Option For Standby Secondary Lsp Paths

    If multiple standby secondary LSP paths have the same priority value, the system selects the path with the lowest uptime. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 69: Rsvp-Te Fast Reroute (Frr)

    LSP requirements can be met. One-to-one backup mode uses similar reroute and protection methods except a detour route is applied on a per-LSP basis. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 70: Frr Terminology

    “detour route” should not be confused with the term “detour LSP”. Detour route is a general term that refers to any alternate route, while detour LSP is a specific term that applies to one-to-one backup. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 71 Any LSP for which the head-end router requests local protection Secondary path An LSP that protects a primary path that uses LSP redundancy protection rather than FRR protection 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 72: Bypass Resignal Timer

    PSB association to it. If the PLR for this session is active, no action is taken and the PSB is re-examined at the next re-evaluation. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 73: Frr Behavior

    LSP switches back to the primary path. If the LSP is on the detour route and the detour route fails, the LSP is switched to the standby path. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 74: Dynamic And Manual Bypass Lsps

    Bypass LSP Selection Rules for the PLR Figure 8 shows an example of a network used to illustrate the LSP selection rules for a PLR bypass scenario. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 75: Figure 8 Bypass Tunnel Node Example

    LSP will have no protection and the PLR node must clear the Local Protection Available flag in the IPv4 address sub-object of the RRO, starting in the next RESV refresh message it sends upstream. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 76 RESV refresh message. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 77: Frr Node Protection (Facility Backup)

    4. When the bypass node creation fails (there is no bypass route), P1 will protect link P1-P2. 5. P1 protects the link to P2 through P1 - P5 - P2. 6. P4 returns online. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 78: Admin Group Support On Facility Bypass Backup Lsps

    This feature is supported on primary paths of an RSVP point-to-point LSP in both intra-area and inter-area TE where applicable. This feature is not supported on one-to-one detour backup LSPs. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 79: Frr Over Unnumbered Interfaces

    Note: If node protection FRR is enabled but the MP does not support an unnumbered interface, the PATH message is rejected at the MP and the path is torn down. RSVP-TE Support for Unnumbered Interfaces for information on unnumbered interfaces. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 80: Shared Risk Link Groups

    ERO of the primary path. If CSPF finds an eligible path, the secondary path is set up. If CSPF does not find an eligible path, MPLS/RSVP-TE keeps retrying the requests to CSPF. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 81: Srlgs For Frr Lsp Paths

    This is because only the SRLG constraint of the outgoing interface at the PLR that the primary path is using is considered in the CSPF calculation. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 82: Enabling Disjoint Backup Paths

    LSP path. The SRLG secondary LSP paths will always perform a strict CSPF query. The setting of the srlg-frr command is irrelevant in this case (see the srlg-frr command). © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 83: Figure 10 Disjoint Primary And Secondary Lsps

    Manually configured bypasses that do not use CSPF are not considered as possible backup paths. Disjoint Primary and Secondary LSPs Figure 10 SRLG_1 SRLG_1 SRLG_1 Legend: Primary path Secondary path taking SRLG_1 into account 20482 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 84: Figure 11 Disjoint Frr Bypass Lsps

    MPLS and RSVP-TE MPLS Guide Disjoint FRR Bypass LSPs Figure 11 Legend: Primary path FRR bypasses taking SRLG_1 into account Bypassing A-B Bypassing B-C Bypassing C-D 20483 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 85: Rsvp-Te Graceful Shutdown

    Graceful shutdown can be enabled on a per-interface basis or on all interfaces on the node if the whole node must be taken out of service. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 86: Rsvp-Te Support For Unnumbered Interfaces

    To support unnumbered TE links in OSPF, a new sub-TLV of the Link TLV is added, which encodes the link local identifiers and link remote identifiers as defined in RFC 4203, OSPF Extensions in Support of Generalized Multi-Protocol Label Switching (GMPLS). © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 87 • RSVP refresh reduction on an unnumbered interface The unnumbered interface feature also extends the support of LSP ping and LSP traceroute to point-to-point LSPs that have unnumbered TE links in their path. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 88: Pcep Support For Rsvp-Te Lsps

    {enable | disable} • config>router>mpls>lsp> path-profile profile-id [path-group group-id] pce-computation pce-control pce-report {enable | disable | inherit} • config>router>mpls>lsp-template> pce-report {enable | disable | inherit} © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 89: Segment Routing With Traffic Engineering (Sr-Te)

    • support for fine-grained flow steering and service chaining via a centralized stateful Path Computation Element (PCE) such as the one provided by the Nokia Network Services Platform (NSP) 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 90: Sr-Te Support

    The user can associate an empty path or a path with strict or loose explicit hops with the primary paths of the SR-TE LSP using the hop, primary, and secondary CLI commands. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 91: Sr-Te Lsp Instantiation

    TE controller referred to as a PCE. This feature works with the Nokia stateful PCE that is part of the Network Services Platform (NSP). The 7705 SAR supports three different modes of operation configurable on a per- SR-TE LSP basis.
  • Page 92 In all cases, the PCC LSP database is synchronized with the PCE LSP database using the PCEP path computation state report (PCRpt) message for LSPs that have the pce-report command enabled. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 93: Pcc-Initiated And Pcc-Controlled Lsps

    SID and protection on each of these adjacencies must be disabled as explained in SR-TE LSP Path Computation. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 94 In both cases, it is possible to have multiple matching previous hops if the interface is a LAN interface. If there are multiple hops, the adjacency SID with the lowest interface address is selected. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 95 LSP that has the pce-report option enabled. The PE router does not set the delegation control flag to keep LSP control. The state of the LSP is now synchronized between the router and the PCE. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 96 ID of the router, and assigns them the same node SID index value. All routers must use the same SRGB. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 97: Figure 12 Multi-Plane Te With Node Protection

    If that router fails, the resolution is updated to the next closest router owning the anycast SID without changing the label stack of the SR-TE LSP. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 98: Pcc-Initiated And Pce-Computed/Controlled Lsp

    SR-TE LSP, the router implements the extensions to PCEP in support of segment routing (see PCEP for more information).This feature works with the Nokia stateful PCE, which is part of the network services platform (NSP). The following steps describe configuring a PCC-initiated SR-TE LSP when passive or active control is given to the PCE.
  • Page 99 Note: The above procedures are followed when the user performs a no shutdown on a PCE-controlled or PCE-computed LSP. The starting point is an administratively down LSP with no active paths. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 100: Sr-Te Lsp Path Computation

    In all cases, the user can configure the maximum number of labels that the ingress LER can push for a particular SR-TE LSP by using the max-sr-labels command. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 101 For a PCC-controlled LSP, if the label stack returned by the TE-DB hop-to-label translation exceeds the per-LSP maximum SR label stack size, the LSP is brought down. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 102: Service And Shortcut Application Sr-Te Label Stack Check

    © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 103 This is also the case when both P and Q nodes match the advertising router for a prefix. For information on P nodes and Q nodes, refer to draft-francois-rtgwg-segment-routing-ti-lfa-04 (Topology Independent Fast Reroute using Segment Routing). 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 104: Sr-Te Lsp Paths Using Explicit Sids

    IP-to-hop paths or SID-based paths. Note: For PCE delegation, the 7705 SAR only supports LSPs with a single path. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 105: Sr-Te Lsp Protection

    If required, node SID protection can be disabled under the IGP instance by excluding the prefix of the node SID from the LFA. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 106 • the network IP interface went down due to a link or port failure or due to the user performing a shutdown of the port © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 107: Local Protection

    SID has been added to the 7705 SAR in the specific context of an SR- TE LSP to augment the protection level. The user must enable the LFA, remote LFA, or TI-LFA option in IS-IS or OSPF. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 108: End-To-End Protection

    BFD session bootstrapping process or session state at the tail end of a session. Instead, when S-BFD is initialized the system selects a set of discriminators for the reflector or initiator function. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 109: Configuration Of S-Bfd On Sr-Te Lsps

    The referenced BFD template must specify parameters that are consistent with an S-BFD session; for example, the endpoint type must be np. S-BFD can be configured at the LSP level, as follows: configure>router>mpls>lsp <name> sr-te 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 110: Support For Bfd Failure Action With Sr-Te Lsps

    S-BFD is applied at the LSP level or the individual path level. The failure- action command can be configured even if the BFD template is not yet configured. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 111 SR-TE LSP State Changes and Failure Actions Based on S-BFD When a path is first configured with S-BFD, it is held operationally down until BFD comes up (subject to the BFD wait time). 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 112: S-Bfd Operational Considerations

    Static route packets can be forwarded to an indirect next hop over an SR-TE LSP programmed in the TTM with the following static route tunnel binding command: © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 113: Bgp Label Route Resolution Using Sr-Te Lsps

    SR-TE LSPs programmed in the TTM by MPLS. The following example shows how to bind an SR-TE LSP to an MPLS SDP: Example: configure service sdp 100 mpls create config>service>sdp$ sr-te-lsp lsp-name 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 114 SDP • inter-AS option C for VPN-IPv4 and VPN-IPv6 VPRN prefix resolution • multicast over IES/VPRN spoke interface with spoke-SDP over an SR-TE LSP © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 115: Data Path Support

    SID and/or adjacency SID label. If the ILM is for a node SID and multiple next hops exist, ECMP spraying is supported at the LSR. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 116: Figure 13 Sr-Te Lsp Label Stack Programming

    On node A, the user configures an SR-TE LSP to node D with a list of explicit strict hops mapping to the adjacency SID of links A-B, B-C, and C-D. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 117: Sr-Te Lsp Metric And Mtu Settings

    NHLFE label stack size. The following are the details of this calculation: SR_Tunnel_MTU = MIN {Cfg_SR_MTU, IGP_Tunnel_MTU – (1+ frr-overhead)×4} 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 118 This calculation is performed by the SR module and is updated each time the SR-TE LSP path changes or the SR tunnel it is using is updated. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 119: Sr-Te Entropy Labels

    MPLS Guide MPLS and RSVP-TE 3.12.11 SR-TE Entropy Labels The 7705 SAR supports SR-TE entropy labels as described in MPLS Entropy Labels. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 120: Weighted Ecmp By Rsvp-Te Or Sr-Te Lsps

    LSP. Weighted ECMP is supported on the following services: • VPRN with auto-bind tunnels • EVPN-VPWS and EVPN-VPLS with auto-bind tunnels © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 121: Weighted Ecmp For Vprn Services With Auto-Bind

    These commands allow the resolution of an EVPN- MPLS next hop to a group of ECMP tunnels of type RSVP-TE or SR-TE. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 122: Weighted Ecmp For Sdps

    If an LSP in the ECMP set has no load-balancing weight configured, ECMP is applied to packets based on the output of the hash for the service ID. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 123: Mpls Service Usage

    For information about service transport tunnels, refer to the 7705 SAR Services Guide. Service transport tunnels can support up to eight forwarding classes and can be used by multiple services. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 124: Mpls And Rsvp-Te Configuration Process Overview

    MPLS and RSVP-TE Configuration and Implementation Flow Figure 14 START ENABLE MPLS CONFIGURE MPLS INTERFACE PARAMETERS CONFIGURE RSVP-TE INTERFACE PARAMETERS CONFIGURE PATH PARAMETERS CONFIGURE LSP PARAMETERS CONFIGURE LSP-PATH PARAMETERS 21817 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 125: Configuration Notes

    • Paths must be created before they can be applied to an LSP. • CSPF must be enabled in order for administrative groups and SRLGs to be relevant. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 126 MPLS and RSVP-TE MPLS Guide © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 127: Configuring Mpls And Rsvp-Te With Cli

    MPLS Configuration Overview • Basic MPLS Configuration • Common Configuration Tasks • MPLS Configuration Management Tasks • RSVP-TE Configuration Management Tasks • Configuring and Operating SR-TE 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 128: Mpls Configuration Overview

    To configure signaled LSPs, you must first create one or more named paths on the ingress router using the config>router>mpls>path command. For each path, the transit routers (hops) in the path are specified. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 129: Lsps

    Maintenance Using the Label Distribution Protocol (LDP), label distribution is handled in the Downstream Unsolicited (DU) mode. Generic Label TLV is used for all setup and maintenance operations. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 130: Signaling Protocol

    LSP is set up on the path created by the session. If the session is not successfully created, RSVP-TE notifies MPLS; MPLS can then either initiate backup paths or retry the initial path. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 131: Basic Mpls Configuration

    "secondary-path" no shutdown exit lsp "lsp-to-eastcoast" to 10.10.10.104 from 10.10.10.103 fast-reroute one-to-one exit primary "to-NYC" exit secondary "secondary-path" exit no shutdown exit 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 132 MPLS and RSVP-TE MPLS Guide static-lsp "StaticLabelPush" to 10.10.11.105 push 60 nexthop 10.10.11.105 no shutdown exit no shutdown --------------------------------------------- A:ALU-1>config>router>mpls# © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 133: Common Configuration Tasks

    Configuring an MPLS LSP • Configuring a Static LSP • Configuring Manual Bypass Tunnels • Configuring RSVP-TE Parameters and Interfaces • Configuring RSVP-TE Message Pacing Parameters 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 134: Configuring Global Mpls Parameters

    The following example displays a global MPLS configuration output. A:ALU-1>config>router>if-attr# info ---------------------------------------------- admin-group "green" 15 admin-group "red" 25 admin-group "yellow" 20 srlg-group "SRLG_fiber_1" 50 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 135: Configuring An Mpls Interface

    36 next-hop 10.10.10.91 config>router>mpls>if>label-map# no shutdown config>router>mpls>if>label-map# exit config>router>mpls>if# srlg-group “SRLG_fiber_1” config>router>mpls>if# no shutdown config>router>mpls# exit The following example displays the interface configuration output. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 136: Configuring Mpls Paths

    2 10.10.0.210 strict hop 3 10.10.0.215 loose exit path "secondary-path" hop 1 10.10.0.121 strict hop 2 10.10.0.145 strict hop 3 10.10.0.1 strict no shutdown exit ------------------------------------------ A:ALU-1>config>router>mpls# © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 137: Configuring An Mpls Lsp

    Use the following CLI syntax to configure a static LSP: CLI Syntax: config>router>mpls static-lsp lsp-name to ip-address push label nexthop ip-address no shutdown Example: config>router# mpls config>router>mpls# static-lsp static-LSP 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 138: Configuring A Fast-Retry Timer For Static Lsps

    15 3.20.7 Configuring Manual Bypass Tunnels Consider the following network setup in Figure 15. Assume that a manual bypass tunnel must be configured on Node B. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 139: Table 8 Disabled And Enabled Options For Bypass-Only

    • hop-limit • include • metric Step 3. Configure an LSP from A to D and indicate fast-reroute bypass protection by selecting facility as the FRR method. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 140: Configuring Rsvp-Te Parameters And Interfaces

    The following example displays an RSVP-TE configuration output. A:ALU-1>config>router>rsvp# info ---------------------------------------------- keep-multiplier 3 refresh-time 30 no msg-pacing rapid-retransmit-time 5 rapid-retry-limit 3 refresh-reduction-over-bypass disable no graceful-shutdown no entropy-label-capability © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 141: Configuring Rsvp-Te Message Pacing Parameters

    5 refresh-time 60 msg-pacing period 400 max-burst 400 exit interface "system" no shutdown exit interface to-104 hello-interval 4000 no shutdown exit no shutdown ---------------------------------------------- A:ALU-1>config>router>rsvp# 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 142: Mpls Configuration Management Tasks

    3.21.2 Modifying MPLS Parameters Note: You must shut down MPLS entities in order to modify parameters. Re-enable (no shutdown) the entity for the change to take effect. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 143: Modifying An Mpls Lsp

    1 10.10.0.111 strict hop 2 10.10.0.222 strict hop 3 10.10.0.123 strict no shutdown exit path "to-NYC" hop 1 10.10.10.104 strict hop 2 10.10.0.210 strict no shutdown exit ---------------------------------------------- 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 144: Modifying Mpls Static Lsp Parameters

    To delete an interface from the MPLS configuration: 1. Administratively disable the interface using the shutdown command. 2. Delete the interface with the no interface command. CLI Syntax: mpls interface ip-int-name shutdown exit © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 145 The following example displays the configuration output when interface “to-104” has been deleted. A:ALU-1>config>router>mpls# info ---------------------------------------------- admin-group "green" 15 admin-group "red" 25 admin-group "yellow" 20 interface "system" exit no shutdown ---------------------------------------------- A:ALU-1>config>router>mpls# 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 146: Rsvp-Te Configuration Management Tasks

    5 rapid-retry-limit 3 refresh-reduction-over-bypass disable no graceful-shutdown no entropy-label-capability no implicit-null-label node-id-in-rro exclude interface "system" exit interface "test1" hello-interval 5000 exit no shutdown ---------------------------------------------- A:ALU-1>config>router>rsvp# © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 147: Modifying Rsvp-Te Message Pacing Parameters

    This removes the association from RSVP-TE. Refer to Deleting an MPLS Interface. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 148: Configuring And Operating Sr-Te

    Example: ospf 0 traffic-engineering advertise-router-capability area loopfree-alternates remote-lfa area 0.0.0.202 stub no summaries exit interface "system" node-sid index 194 no shutdown exit interface "toSim199" interface-type point-to-point © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 149: Sr-Te Lsp Configuration Overview

    MPLS context and specifying the sr-te LSP type. CLI Syntax: config>router>mpls>lsp lsp-name | sr-te A primary path can be configured for the SR-TE LSP. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 150: Configuring Path Computation And Control For Sr-Te Lsps

    Use the following syntax to configure the path profile and path group: CLI Syntax: config>router>mpls>lsp>path-profile profile-id [path- group group-id] © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 151: Configuring Sr-Te Lsp Label Stack Size

    SID are kept: CLI Syntax: config>router>ospf>segment-routing>adj-sid-hold seconds[1..300, default 15] config>router>isis>segment-routing>adj-sid-hold seconds[1..300, default 15] Example: adj-sid-hold 15 prefix-sid-range global no tunnel-table-pref no tunnel-mtu no backup-node-sid no shutdown 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 152: Configuring Pcc-Controlled, Pce-Computed, And Pce-Controlled Sr-Te Lsps

    The following example shows the configuration of a PCC-controlled SR-TE LSP that is not reported to the PCE: Example: lsp "to-SanFrancisco" sr-te to 192.0.2.211 cspf pce-report disable metric 10 primary "loose-anycast" exit no shutdown exit © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 153 PCE path profile and a maximum label stack set to a non-default value: Example: lsp "from Reno to Atlanta no Profile" sr-te to 192.0.2.224 cspf max-sr-labels 8 additional-frr-labels 1 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 154 MPLS and RSVP-TE MPLS Guide pce-computation pce-report enable pce-control path-profile 10 path-group 2 primary "empty" bandwidth 15 exit no shutdown exit © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 155: Mpls And Rsvp-Te Command Reference

    Show Commands • Tools Commands (refer to the Tools section of the 7705 SAR OAM and Diagnostics Guide) • Clear Commands • Monitor Commands • Debug Commands 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 156: Mpls Commands

    — no bfd-template — failure-action failover-or-down — no failure-action — wait-for-up-timer seconds — no wait-for-up-timer — bgp-transport-tunnel {include | exclude} — [no] cspf [use-te-metric] © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 157 — [no] propagate-admin-group — retry-limit number — no retry-limit — retry-timer seconds — no retry-timer — rsvp-resv-style [se | ff] — [no] secondary path-name — [no] adaptive 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 158 — metric metric — pce-report {enable | disable | inherit} — [no] propagate-admin-group — retry-limit number — no retry-limit — retry-timer seconds — no retry-timer © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 159: Rsvp-Te Commands

    — [no] shutdown — subscription percentage — no subscription — [no] keep-multiplier number — no keep-multiplier — [no] msg-pacing — max-burst number — no max-burst 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 160: Show Commands

    [lsp-name] [detail] — sr-te-lsp [sp-name] [status {up | down}] [to ip-address] [detail] — static-lsp [lsp-name] — static-lsp [lsp-type] — static-lsp count — srlg-group [group-name] — status © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 161: Clear Commands

    [absolute | rate] — lsp-egress-stats lsp lsp-name [interval seconds] [repeat repeat] [absolute | rate] — lsp-ingress-stats lsp lsp-name [interval seconds] [repeat repeat] [absolute | rate] ip- address 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 162: Debug Commands

    — — no — [no] packet — [detail] — no — [detail] — no — bundle [detail] — no bundle — hello [detail] — no hello © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 163 — no pathtear — resv [detail] — no resv — resverr [detail] — no resverr — resvtear [detail] — no resvtear — srefresh [detail] — no srefresh 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 164: Command Descriptions

    • Show Commands (MPLS) • Show Commands (MPLS-Labels) • Show Commands (Seamless BFD) • Show Commands (RSVP) • Clear Commands • Monitor Commands • Debug Commands © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 165: Configuration Commands (Mpls)

    Interface Commands • Interface Label-Map Commands • LSP and LSP Template Commands • Primary and Secondary Path Commands • LSP Path Commands • Static LSP Commands 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 166 LSPs—where the path is defined as a primary or a standby secondary path—are (re)established. Default mpls — no shutdown interface — shutdown label-map — no shutdown path — shutdown static-lsp — shutdown © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 167 IDs. Changes to this command (enabling or disabling) will apply only to new attempts to find a valid bypass. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 168 When the template is shut down and parameters are added, removed or modified, the existing instances of the LSP using this template are torn down and resignaled. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 169 RSVP point-to-point LSPs. The operation is performed at each expiry of the timer. The no form of this command disables the periodic global re-optimization of dynamic bypass LSP paths. Default no bypass-resignal-timer 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 170 {force-disable | enable} entropy-label sr-te {force-disable | enable} Context config>router>mpls Description This command enables or disables the use of entropy labels for MPLS RSVP-TE and SR-TE LSPs. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 171 LSP or if the LSP is using one-to-one backup. Default frr-object — by default, the value is inherited by all LSPs 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 172 Description This parameter is used in the least-fill path selection process. See the description of the least-fill command for information on the least-fill path selection process. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 173 This command separately configures the reporting modes to a PCE for RSVP-TE or SR-TE LSPs. The PCC LSP database is synchronized with the PCE LSP database using the PCEP PCRpt (PCE Report) message for PCC-controlled, PCE-computed, and PCE-controlled LSPs. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 174 The no form of the command disables timer-based LSP resignaling. Default no resignal-timer Parameters minutes — specifies the time the software waits before attempting to resignal the LSPs, in minutes Values 30 to 10080 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 175 SRLG and other primary path constraints. • If no bypass path is found, then the task makes a request to CSPF to try to create one. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 176 — specifies that the CSPF calculation for the FRR backup must include the SRLG constraint and the backup must be on the resulting list of eligible backup paths Values non-strict:srlg-frr strict:srlg-frr strict © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 177 This command associates an accounting policy with an RSVP LSP. Only one accounting policy at a time can be associated with an RSVP LSP on a particular node. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 178 The no form of this command disables the statistics in the egress data path and removes the accounting policy association from the RSVP LSP. Default no egress-statistics © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 179 The admin groups bound to an MPLS interface are advertised area-wide in TE link TLVs and sub-TLVs when the traffic-engineering option is enabled in IS-IS or OSPF. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 180 The no form of this command deletes the association of this interface with one or more of the SRLGs. Default Parameters group-name — specifies the name of the SRLG. The group names should be the same across all routers in the MPLS domain. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 181 The TE metric is only used in CSPF computations for MPLS paths and not in the regular SPF computation for IP reachability. The no form of the command reverts to the default value. Default no te-metric Parameters value — 1 to 16777215 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 182 This command swaps the incoming label and specifies the outgoing label and next-hop IP address on an LSR for a static LSP. The no form of this command removes the swap action associated with the in-label. Default © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 183 LSP will be marked operational. If an ARP entry does not exist, software will set the operational status of the static LSP to down and continue to ARP for the configured next-hop at a fixed interval. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 184 This command creates an LSP template that is referenced when dynamic LSP creation is required. The LSP template type, mesh-p2p or one-hop-p2p, must be specified when the template is first created. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 185 This command enables the context to configure seamless BFD (S-BFD) parameters on an LSP that is defined as an SR-TE LSP. The configuration in the config>router>mpls>lsp> secondary context is valid only for SR-TE LSPs. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 186 BFD session fails on the active path (primary or standby). If there is no available path to switch to, the LSP is taken operationally down. This failure action is only applicable to SR- TE LSPs. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 187 Description This command allows an RSVP-TE LSP to be used as a transport LSP for BGP tunnel routes or blocks it from being used. Default include 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 188 LSP template. You must reference a default path before the template is put in a no shutdown state. Parameters path-name — specifies the default path name to be used © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 189 ELC, the additional two labels of the entropy label and ELI are always accounted for. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 190 LSP. The ingress router will signal all intermediate routers using RSVP-TE to set up their protection LSP. TE must be enabled for fast reroute to work. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 191 The no form of the command reverts to the default value. Default Parameters limit — specifies the maximum number of hops Values 0 to 255 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 192 They are also used by any LSR node in the path of a CSPF or non-CSPF LSP to check the admin-group constraints against the ERO whether the hop is strict or loose. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 193 Values system IP or network interface IP addresses Default system IP address hop-limit Syntax hop-limit number no hop-limit Context config>router>mpls>lsp config>router>mpls>lsp-template 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 194 LSP metric, is included in the main SPF if advertised, and is included in the LFA SPF algorithm whether it is advertised or not. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 195 — an LSP is included in both the main SPF and the LFA SPF calculation lfa-only — an LSP is included in the LFA SPF calculation only 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 196 CSPF applies the least-fill path selection method to all requests for a path, primary and secondary, of an LSP for which this option is enabled. The bandwidth of the path can be any value, including zero. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 197 Parameters number — a 32-bit integer representing the weight of the LSP Values 1 to 100 max-sr-labels Syntax max-sr-labels label-stack-size [additional-frr-labels labels] no max-sr-labels Context config>router>mpls>lsp 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 198 — sets the number of additional labels inserted by remote LFA for the backup next hop of the SR-TE LSP Values 0 to 4 Default © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 199 LSP. Parameters profile-id — specifies the profile ID Values 1 to 4294967295 group-id — specifies the path group ID Values 0 to 4294967295 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 200 Conversely, an attempt to disable the cspf option on an LSP that has the pce-control option or pce-computation option enabled will be rejected. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 201 LSR, the LSR will check the compatibility of admin groups received in the PATH message against configured admin groups on the egress interface of the LSP. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 202 LSP after it has failed. Allowed values are integers in the range of 0 to 10000, where 0 indicates to retry forever. Values 0 to 10000 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 203 Because each sender is explicitly listed in the RESV message, different labels can be assigned to different sender-receiver pairs, thereby creating separate LSPs. shutdown Syntax [no] shutdown Context config>router>mpls>lsp 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 204 If the to address does not match the SDP address, the LSP is not included in the SDP definition. Default Parameters ip-address — specifies the IP address of the egress router © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 205 — allows an associated LSP to be used by auto-bind for VPRN services exclude — prevents the associated LSP from being used with the auto-bind feature for VPRN services 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 206 The first successfully established path is made the active path for the LSP. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 207 — bandwidth setting in the global LSP configuration Parameters rate-in-mbps — specifies the amount of bandwidth reserved for the LSP path in Mb/s Values 0 to 100000 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 208 This command only applies to secondary LSP paths that have been configured in standby mode. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 209 Enabling the record-label command will also enable the record command, if it is not already enabled. The no form of this command disables the recording of the hops that an LSP path traverses. Default record-label 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 210 — it puts the path on a delayed make-before-break immediately after the expiry of the retry timer. If MBB fails on the first try, the secondary path is torn down and the path is put on retry. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 211 In addition, any user-configured include or exclude admin group statements for this secondary path are checked along with the SRLG constraints by CSPF. The no form of the command reverts to the default value. Default no srlg 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 212 Note: A priority level can be assigned to standby secondary paths using the path- preference command. The no form of this command specifies that the secondary LSP is signaled when the primary path LSP fails. Default © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 213 A hop list can include the ingress interface IP address, the system IP address, and the egress IP address of any of the hops being specified. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 214 No transit routers between the previous router and this router are allowed. loose — specifies that the route taken by the LSP from the previous hop to this hop can traverse other routers © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 215 Label values 28672 through 131071 are dynamically assigned for both MPLS and services Label values 131072 through 1048575 are reserved for future use. Values 16 to 1048575 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 216 LSP comes up shortly after the next hop is available. Default Parameters seconds — fast-retry timer value, in seconds Values 1 to 30 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 217: Configuration Commands (Rsvp-Te)

    MPLS Guide MPLS and RSVP-TE 3.24.2.2 Configuration Commands (RSVP-TE) • Generic Commands • RSVP-TE Global Commands • Interface Commands • Message Pacing Commands 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 218 When RSVP-TE is administratively disabled, all the RSVP-TE sessions are torn down. The no form of this command administratively enables RSVP-TE on the interface. Default shutdown © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 219 LER (eLER) signals to the ingress LER (iLER) that the LSP is capable of using entropy labels. The no form of the command disables entropy label capability. Default no entropy-label-capability graceful-shutdown Syntax [no] graceful-shutdown Context config>router>rsvp config>router>rsvp>interface 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 220 The no form of the command disables the graceful shutdown operation at the RSVP interface level or at the RSVP level. The configured TE parameters of the maintenance links are restored and the maintenance node floods the links. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 221 The no form of this command reverts to the default value. Default Parameters number — specifies the keep-multiplier value Values 1 to 255 node-id-in-rro Syntax node-id-in-rro {include | exclude} Context config>router>rsvp 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 222 RSVP-TE messages whenever the updated backoff interval exceeds the value of the regular refresh interval or the number of retransmissions reaches the value of the rapid-retry-limit parameter, whichever comes first. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 223 The no form of this command reverts to the default value. Default Parameters seconds — specifies the refresh time in seconds Values 1 to 65535 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 224 By default, authentication is not enabled. Default no auth-keychain Parameters name — the name of an existing keychain, up to 32 characters © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 225 If this fails, the packet is dropped. The 7705 SAR MD5 implementation does not support the authentication challenge procedures in RFC 2747. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 226 BFD. In general, the registration of RSVP-TE with BFD is removed as soon as the last RSVP-TE session is cleared. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 227 — specifies the RSVP-TE hello interval in milliseconds, in multiples of 1000. A 0 (zero) value disables the sending of RSVP-TE hello messages. Values 0 to 60000 milliseconds (in multiples of 1000) 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 228 • it will use summary refresh messages to refresh PATH and RESV states The reliable message delivery must be explicitly enabled by the user after refresh reduction is enabled. The other two capabilities are enabled immediately. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 229 PATH or RESV refresh message was received from the peer. If a specific message_identifier field does not match, then the node sends a message_id_nack object to the originator of the message. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 230 An error message will also be generated in CLI after such an attempt. The no form of the command reverts to the default value. Default no reliable-delivery © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 231 The no form of this command resets the percentage to the default value. Default Parameters percentage — specifies the percentage of the interface’s bandwidth that RSVP-TE allows to be used for reservations Values 0 to 1000 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 232 Default Parameters milli-seconds — the time interval during which the router can send RSVP-TE messages Values 100 to 1000 milliseconds, in increments of 10 milliseconds © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 233: Show Commands (Mpls)

    If the value displays “-1”, then the group value for this entry has not been set. No. of Groups The total number of configured administrative groups within the router instance 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 234: Table 10 Router Mpls Bypass-Tunnel Field Descriptions

    The amount of bandwidth in kilobytes per second (Kbps) reserved for the LSP Protected LSP Count The number of times this LSP has used a protected LSP © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 235 None Admin Groups None Srlg Groups None ip-10.10.4.2 1/1/2 None Admin Groups None Srlg Groups None ip-10.10.3.2 1/1/3 None Admin Groups None Srlg Groups None ------------------------------------------------------------------------------- 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 236: Table 11 Router Mpls Interface Field Descriptions

    The port ID in the slot/mda/port format The administrative state of the interface The operational state of the interface Te-metric The traffic engineering metric used on the interface © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 237 Label Value — the value of the last invalid label received Label Position — the position in the label stack of the last invalid label received 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 238 (Output Example, Table • MPLS LSP Path Detail (Output Example, Table • MPLS LSP Path MBB (Output Example, Table • MPLS Auto LSP (Output Example, Table © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 239: Table 12 Router Mpls Lsp Field Descriptions

    Up — the path is administratively enabled Oper State Down — the path is operationally down Up — the path is operationally up LSPs The total number of LSPs configured 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 240: Table 13 Mpls Lsp Detailed Field Descriptions

    The name of the LSP used in the path LSP Type The type of LSP used in the path LSP Tunnel ID The LSP tunnel identifier © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 241 The size of the maximum transmission unit (MTU) that is negotiated during establishment of the LSP Adaptive Indicates whether the make-before-break option is enabled or disabled for resignaled paths 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 242 Indicates whether LDP over RSVP tunneling is enabled or disabled VprnAutoBind Indicates whether VPRN auto-bind tunneling is enabled or disabled IGP Shortcut Indicates whether the IGP shortcut option is enabled or disabled © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 243 Retry Limit : 20 Retry Timer : 30 sec RetryAttempt: 0 Next Retry *: 0 sec Bandwidth : 200 Mbps Oper Bandwi*: 50 Mbps Hop Limit : 255 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 244: Table 14 Router Mpls Lsp Path Detail Field Descriptions

    Down — the path is operationally down Up — the path is operationally up Path Name The alphanumeric name of the path Path Type The type of path: primary or secondary © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 245 The path-preference priority number assigned to a standby secondary LSP path Path Trans The number of times a path has made a transition between up and down states 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 246 MBB Started At The time the current MBB began RetryAttempt The number of attempts for the MBB in progress © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 247 In Progress MBB: MBB Type : Global Revertive NextRetryIn : 10 sec Started at : 2008/04/08 11:45:02.20 PST RetryAttempt: 2 Failure Code: noCspfRouteToDestination Failure Node: 10.20.1.1 =============================================================================== *A:ALU-48# 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 248: Table 15 Router Mpls Lsp Path Mbb Field Descriptions

    Failure Node The IP address of the node in the LSP path at which the in-progress MBB failed. When no failure has occurred, this value is none. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 249: Table 16 Router Mpls Auto Lsp Field Descriptions

    This command displays RSVP LSP egress statistical information. Parameters lsp-type — specifies the type of LSP to display. The only available options are p2p and p2mp. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 250 Syntax lsp-ingress-stats [type lsp-type] [active] [template-match SessionNameString [sender ip-address]] lsp-ingress-stats lsp lsp-name sender ip-address Context show>router>mpls Description This command displays RSVP LSP ingress statistical information. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 251 InProf Octets : 0 OutProf Octets: 0 FC NC InProf Pkts OutProf Pkts InProf Octets : 0 OutProf Octets: 0 ------------------------------------------------------------------------ LDP Ingress Statistics : 1 ======================================================================== 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 252 : Disabled Accounting Policy : None Class Type Backup Class Type Main CT Retry Limit: 0 BGP Transport Tunn : Enabled ADSPEC : Disabled =============================================================================== A:ALU-12# © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 253: Table 17 Router Mpls Lsp Template Field Descriptions

    Record Route Indicates whether the route is being recorded Record Label Indicates whether the label is being recorded Retry Limit The maximum number of retries allowed 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 254 — the LSP will include advertising data (ADSPEC) objects in RSVP-TE messages disabled — the LSP will not include advertising data (ADSPEC) objects in RSVP-TE messages © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 255 =============================================================================== MPLS Path: =============================================================================== Path Name LSP Name Binding ------------------------------------------------------------------------------- nyc_to_sjc_via_dfw NYC_SJC_customer1 Primary nyc_to_sjc_via_den NYC_SJC_customer1 Standby secondary_path2 Down NYC_SJC_customer1 Seconda* ------------------------------------------------------------------------------- Paths : 3 =============================================================================== A:ALU-12# 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 256: Table 18 Router Mpls Path Field Descriptions

    — displays SR-TE LSPs connected to the IP address Output The following outputs are examples of MPLS SR-TE path information. • Output Example: SR-TE LSP © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 257 ------------------------------------------------------------------------------- LSP Name : sr-te-lsp-to-Dut-B LSP Type : SrTeLsp LSP Tunnel ID LSP Index : 65538 TTM Tunnel Id : 655364 From : 10.20.1.1 : 10.20.1.22 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 258 : 0 Mbps =============================================================================== *A:7705:Dut-A# show router mpls sr-te-lsp "sr-te-lsp-to-Dut-C" detail =============================================================================== MPLS SR-TE LSPs (Originating) (Detail) =============================================================================== ------------------------------------------------------------------------------- Type : Originating ------------------------------------------------------------------------------- LSP Name : sr-te-lsp-to-Dut-C © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 259 : Disabled PCE Control : Disabled Oper PCE Control : Disabled PCE Compute : Disabled Oper PCE Compute : Disabled Include Groups Oper Include Groups None None 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 260 LSP Down Time : 0d 00:00:00 Transitions Path Changes Retry Limit Retry Timer : 20 sec Hop Limit : 255 Negotiated MTU : 1542 CSPF : Disabled © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 261 None None IGP/TE Metric : 16777215 Oper Metric : 16777215 Oper MTU : 1542 Path Trans Failure Code : noError Failure Node : n/a Explicit Hops 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 262 None Exclude Groups Oper Exclude Groups None None IGP/TE Metric : 16777215 Oper Metric : 16777215 Oper MTU : 1542 Path Trans Failure Code : noError © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 263 PCE Compute : Enabled PCE Control : Disabled Max SR Labels Additional FRR Labels: 1 Path Profile None Primary(a) : fully_loose Up Time : 0d 00:00:44 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 264 Retry Limit Retry Timer : 30 sec Hop Limit : 255 Negotiated MTU : 1492 CSPF : Enabled Metric : N/A Use TE metric : Disabled © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 265: Table 19 Router Mpls Srlg Group Field Descriptions

    Table 19 Label Description Group Name The name of the SRLG group within a router instance Group Value The group value associated with this SRLG group 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 266 Out Port ------------------------------------------------------------------------------- to131 10.9.9.9 10.1.2.2 30d 02:42:53 Down to121 10.8.8.8 10.1.3.2 30d 02:42:53 Down static-lsp_- 10.9.9.9 10.1.2.2 0d 01:39:34 Down ------------------------------------------------------------------------------- LSPs : 3 =============================================================================== *A:ALU-12>show>router>mpls# © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 267: Table 20 Router Mpls Static Lsp Field Descriptions

    The system IP address of the next hop in the LSP path Out Label The egress label Down — indicates that the path is administratively disabled Up — indicates that the path is administratively enabled 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 268 : Disabled RetryIgpOverload : Disabled Sec FastRetryTimer : Disabled Static LSP FR Timer : 30 seconds P2PActPathFastRetry : Disabled In Maintenance Mode : No Pce-report : None © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 269: Table 21 Router Mpls Status Field Descriptions

    The amount of time until the next resignal for the LSP Dynamic Bypass Indicates whether dynamic bypass is enabled or disabled Next Available Lsp The next free LSP index ID Index 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 270 Disabled — specifies that entropy label is disabled for the SR-TE MPLS LSP Counts The number of originate, transit, and terminate LSPs that are Static, Dynamic, Detour, Mesh-P2P, One Hop-P2P, or SR-TE © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 271: Show Commands (Mpls-Labels)

    ILDP 131071 dynamic ILDP ----------------------------------------------------------------- In-use labels (Owner: ILDP) in specified range In-use labels (Owner: All) in specified range In-use labels in entire range ================================================================= 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 272: Table 22 Router Mpls-Labels Label Field Descriptions

    Label Ranges ============================================================================== Label Type Start Label End Label Aging Available Total ------------------------------------------------------------------------------ Static 18431 18400 18400 Dynamic 18432 131071 112638 112640 Seg-Route 112640 ============================================================================== ALU-12# © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 273: Table 23 Router Mpls-Labels Label Range Field Descriptions

    The number of label values available in the static label range Bgp Labels Hold Timer The number of BGP labels in use under control of the hold timer 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 274 Label Description Segment Routing Start The start label value for segment routing labels Label Segment Routing End The end label value for segment routing labels Label © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 275: Show Commands (Seamless Bfd)

    — the LSP path name, up to 64 characters ip-prefix/prefix-length — the IP prefix and prefix length associated with the LSP path Values ip-prefix: a.b.c.d prefix-length: ip-address — the source IP address 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 276: Show Commands (Rsvp)

    RSVP Interfaces =============================================================================== Interface Total Active Total BW Resv BW Adm Opr Sessions Sessions (Mbps) (Mbps) ------------------------------------------------------------------------------- system ip-10.10.1.1 ip-10.10.2.1 ip-10.10.3.1 ------------------------------------------------------------------------------- Interfaces : 4 =============================================================================== A:ALU-12# © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 277: Table 25 Router Rsvp-Te Interface Field Descriptions

    : n/a Refresh Reduc. : Disabled Reliable Deli. : Disabled Bfd Enabled : No Graceful Shut. : Disabled ImplicitNullLabel : Disabled* GR helper : Disabled IGP Update 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 278: Table 26 Router Rsvp-Te Interface Detail Field Descriptions

    RSVP messages into a single packet to reduce the network overhead. When the value is true, RSVP negotiates with each neighbor and gets consensus before sending aggregate messages. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 279 Indicates down threshold levels for the interface IGP Update Pending Indicates whether an IGP update will occur Next Update Indicates when the next IGP update will be, if there is one pending 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 280: Table 27 Router Rsvp-Te Interface Statistics Field Descriptions

    The total number of RSVP-TE PATH ERROR messages transmitted on the RSVP-TE interface Path Tears The total number of RSVP-TE PATH TEAR messages received on the RSVP-TE interface © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 281 — the IP address of the originating router detail — displays detailed information Output The following output is an example of RSVP-TE neighbor information, and Table 28 describes the fields. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 282: Table 28 Router Rsvp-Te Neighbor Field Descriptions

    — specifies the IP address of the egress router name — specifies the name of the LSP used in the path status up — specifies to display a session that is operationally up © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 283 A:ALU-12# show router rsvp session lsp-name A_C_2::A_C_2 status up =============================================================================== RSVP Sessions =============================================================================== From Tunnel LSP Name State ------------------------------------------------------------------------------- 10.20.1.1 10.20.1.3 A_C_2::A_C_2 ------------------------------------------------------------------------------- Sessions : 1 =============================================================================== A:ALU-12# 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 284: Table 29 Router Rsvp-Te Session Field Descriptions

    The total number of PATH timeouts RESV Timeouts The total number of RESV timeouts GR Helper PATH Timeouts The total number of graceful restart helper PATH timeouts © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 285 Down Thresholds(%) : 100 99 98 97 96 95 90 85 80 75 60 45 30 15 0 Update Timer : N/A Update on CAC Fail : Disabled =============================================================================== 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 286: Table 31 Router Rsvp-Te Status Field Descriptions

    The value of the rapid retry limit, which is used in the retransmission mechanism that handles unacknowledged message_id objects Graceful Shutdown Specifies whether graceful shutdown of the RSVP node is enabled © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 287: Clear Commands

    CSMs, after a CSM activity switch the statistics on the newly active CSM will show the aggregate count as though no clear command has been executed. Parameters lsp-name — specifies the name of the LSP to clear 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 288 — clears only statistics statistics Syntax statistics Context clear>router>rsvp Description This command clears global statistics for the RSVP-TE instance; for example, clears path and resv timeout counters. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 289: Monitor Commands

    — displays raw statistics, without processing. No calculations are performed on the delta or rate statistics. rate — displays the rate per second for each statistic instead of the delta 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 290 FC AF InProf Pkts OutProf Pkts InProf Octets : 0 OutProf Octets: 0 FC L1 InProf Pkts OutProf Pkts InProf Octets : 0 OutProf Octets: 0 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 291 Adm State : Up PSB Match : True FC BE InProf Pkts OutProf Pkts InProf Octets : 0 OutProf Octets: 0 FC L2 InProf Pkts OutProf Pkts 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 292 — displays the rate per second for each statistic instead of the delta ip-address — the IP address of the remote host Values a.b.c.d ipv4-address © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 293 InProf Octets : 0 OutProf Octets: 578224 FC AF InProf Pkts : 0 OutProf Pkts : 0 InProf Octets : 0 OutProf Octets: 0 FC L1 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 294 FC BE InProf Pkts : 627 OutProf Pkts : 0 InProf Octets : 638286 OutProf Octets: 0 FC L2 InProf Pkts : 0 OutProf Pkts : 627 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 295 InProf Octets : 638286 OutProf Octets: 0 FC NC InProf Pkts : 0 OutProf Pkts : 627 InProf Octets : 0 OutProf Octets: 638286 =============================================================================== B:Sys# 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 296: Debug Commands

    Description This command enables debugging for specific events. The no form of the command disables the debugging. Syntax all [detail] no all Context debug>router>mpls>event debug>router>rsvp>event © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 297 Description This command debugs LSP setup events. The no form of the command disables the debugging. Parameters detail — displays detailed information about LSP setup events 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 298 Context debug>router>mpls>event Description This command debugs cross-connect events. The no form of the command disables the debugging. Parameters detail — displays detailed information about cross-connect events © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 299 The no form of the command disables the debugging. Parameters detail — displays detailed information about authentication events Syntax nbr [detail] no nbr Context debug>router>rsvp>event Description This command debugs neighbor events. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 300 Description This command debugs refresh reduction events. The no form of the command disables the debugging. Parameters detail — displays detailed information about refresh reduction events © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 301 Description This command debugs bundle packets. The no form of the command disables the debugging. Parameters detail — displays detailed information about RSVP-TE bundle packets 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 302 The no form of the command disables the debugging. Parameters detail — displays detailed information about path error packets pathtear Syntax pathtear [detail] no pathtear Context debug>router>rsvp>packet Description This command debugs path tear packets. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 303 Context debug>router>rsvp>packet Description This command debugs ResvTear packets. The no form of the command disables the debugging. Parameters detail — displays detailed information about ResvTear packets 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 304 Description This command debugs srefresh packets. The no form of the command disables the debugging. Parameters detail — displays detailed information about RSVP-TE srefresh packets © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 305: Pcep

    LSP Path Diversity and Bidirectionality Constraints • NSP and VSR-NRC PCE Redundancy • Configuring RSVP-TE LSPs with PCEP Using the CLI • PCEP Configuration Command Reference 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 306: Introduction To The Path Computation Element (Pce) Communication Protocol (Pcep)

    (WAN) software- defined network (SDN) controller and network elements. The Nokia WAN SDN Controller is known as the Network Services Platform (NSP). The NSP is a set of applications which are built on a common framework that hosts and integrates them by providing common functions.

  • Page 307: Figure 16 Nsp Functional Modules

    IP flows (NRC-F). In addition, a resource controller for inter-layer IP and optical path computation and more complex inter-domain MPLS path computation is provided as part of the NRC-X. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 308: Figure 17 Nrc-P Architecture

    • a single Virtual Machine (VM) handling the Java implementation of an MPLS path computation engine, a TE graph database, and an LSP database • a plug-in adapter with the Nokia CPROTO interface, providing reliable, TCP- based message delivery between vSROS and Java-VM. The plug-in adapter implements a compact encoding/decoding (codec) function for the message content using Google ProtoBuf.
  • Page 309 • support for LSP path diversity across different LERs using extensions to the PCE path profile, as per draft-alvarez-pce-path-profiles • support for LSP path bidirectionality constraints using extensions to the PCE path profile, as per draft-alvarez-pce-path-profiles 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 310: Base Implementation Of Path Computation Elements (Pce)

    Explicit Route Object (ERO) PCRep Reported Route Object (RRO) PCReq LSPA Object PCReq, PCRep, PCRpt Include Route Object (IRO) PCReq, PCRep SVEC Object PCReq NOTIFICATION Object PCNtf © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 311 PCE, per draft-sivabalan-pce- disco-stateful • security of the PCEP session using MD5 or TLS between PCEP peers • PCEP synchronization optimization as per draft-ietf-pce-stateful-sync- optimizations 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 312 • jitter, latency, and packet loss metrics support as per RFC 7471 and draft-ietf- isis-te-metric-extensions, and their use in the PCE metric object as per draft-ietf- pce-pcep-service-aware © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 313: Pcep Session Establishment And Maintenance

    The PCEP session initialization steps are illustrated in Figure PCEP Session Initialization Figure 18 TCPSYN TCP SYN+ACK TCP ACK PCEP OPEN PCEP OPEN PCEP KEEP ALIVE PCEP KEEP ALIVE 26696 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 314 When a PCEP session to a peer times out or closes, the rate at which the PCEP speaker attempts the establishment of the session is subject to an exponential back-off mechanism. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 315: Pcep Parameters

    LSP that went down since the last time the PCEP session was up has its path updated by the PCE. 4.4.1 PCC Configuration The following PCC parameters can be modified while the PCEP session is operational: • report-path-constraints • unknown-message-rate 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 316: Stateful Pce

    , PCErr LSP Object PCRpt , PCReq, PCRep LSP-IDENTIFIERS TLV PCRpt SYMBOLIC-PATH-NAME TLV LSP, SRP PCRpt LSP-ERROR-CODE TLV PCRpt RSVP-ERROR-SPEC TLV PCRpt Note: 1. Nokia proprietary © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 317 PCReq message for the same PLSP-ID. In order for the PCE to become aware of the original constraints of such an LSP, the following additional procedures are performed. These procedures are proprietary to Nokia. - The PCC appends a duplicate of each of the LSPA, metric, and bandwidth objects in the PCRpt message.

  • Page 318: Pcep Extensions In Support Of Sr-Te Lsps

    • The PCC and PCE support a new Segment Routing ERO and RRO with sub-objects, referred to as SR-ERO and SR-RRO sub-objects, which encode the SID information in PCRpt messages. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 319: Lsp Initiation

    PCE at the request of an application or a service instantiation, is referred to as a PCE-initiated LSP. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 320 - The pce-report option must be enabled for LSPs that cannot be delegated to the PCE. The PCE acts in active stateful mode for this LSP. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 321: Pcc-Initiated And Pce-Computed Or Pce-Controlled Lsps

    IGP. This causes IGP to flood the link SRLG and admin-group membership in its participating area, and for PCE to learn it in its TE database. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 322 PCE-controlled or PCE-computed LSP. The starting point is an LSP which is administratively down with no active path. For an LSP with an active path, the following items may apply: © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 323 LSP and make no updates to it until the next network event or reoptimization. At that point, the prior procedure is followed. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 324: Pcep Support For Rsvp-Te Lsps

    The cspf option must be enabled on the LSP before enabling the pce-computation or pce-control options. An attempt to disable the cspf option on an RSVP-TE LSP that has the pce-computation or pce-control options enabled will be rejected. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 325 All other MPLS, LSP, and path-level commands are supported, with the exception of the following commands: • least-fill • srlg (on secondary standby path) For more information on RSVP-TE PCC instantiation modes, see Initiation. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 326: Behavior Of The Lsp Path Update

    LER, which returns a PCErr message to the PCE with the LSP Error code field of the LSP-ERROR-CODE TLV set to a value of 8 (RSVP signaling error). © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 327: Path Update With Empty Ero

    LSP. This section contains information on the following LSP MBB procedures: • PCC-Controlled LSPs • PCE-Computed LSPs • PCE-Controlled LSPs 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 328: Pcc-Controlled Lsps

    - If the PCE successfully finds a path, it replies with a PCRep message with the ERO. - If the PCE does not find a path, it replies with a PCRep message containing the No-Path object. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 329: Pce-Controlled Lsps

    3. For an LSP with pce-computation enabled, the PCC issues a PCReq for the same PLSP-ID and includes the updated constraints in the metric, LSPA, or bandwidth objects. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 330 - The ingress PE keeps the information as required and sets the state of MBB to one of the FRR global revertive or TE graceful shutdown MBB values but does not perform the MBB action. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 331 8. The path update MBB (tools>perform>router>mpls>update-path) fails, which results in no operation. This is true in all cases when the RSVP-TE LSP enables the pce-report option. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 332: Behavior Of Secondary Lsp Paths

    When the user wants to apply path disjointness and path bidirectionality constraints to RSVP-TE LSP paths, it is important to follow the following guidelines. The user can configure the following sets of LSP paths: © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 333 That is, it is possible that the primary path for the forward LSP shares the same links as the secondary path of the reverse LSP and vice-versa. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 334: Lsp Path Diversity And Bidirectionality Constraints

    The constraints in the bandwidth object and the LSPA object, specifically the include and exclude admin-group constraints and setup and hold priorities, are not supported in the PCE profile. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 335: Table 35 Pcep Path Profile Extension Objects And Tlvs

    PCEP Path Profile Extension Objects and TLVs Table 35 TLV, Object, or Message Contained in Object Contained in Message PATH-PROFILE-CAPABILITY OPEN OPEN PATH-PROFILE Object PCReq, PCRpt Note: 1. Nokia proprietary 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 336 If the OPEN object received from a PCEP speaker does not contain one or more of the capabilities, the PCE or PCC will not use them during that PCEP session. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 337: Nsp And Vsr-Nrc Pce Redundancy

    NSP ecosystem and the provision of redundancy across two separate sites. This is referred to as Disaster Recovery (DR) and is also sometimes referred to as geo-redundancy. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 338: Figure 19 Nsp Ecosystem Redundancy

    VSR-NRC. The TCP session runs an internal protocol, also known as cproto. This configuration is done prior to system startup and cannot be changed with an active NSP; the NSP must be shut down for any changes. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 339: Nsp Cluster Redundancy

    - The VSR-NRC at the secondary/standby site maintains its BGP and IGP peerings with the network and updates its TE database as a result of any network topology changes. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 340: Pcc Behavior

    4.7.2.3 PCC Behavior The following describes rules for a PCC with PCE redundancy: • PCCs can establish upstream PCEP sessions with at most two VSR-NRC PCEs. © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 341 PCC fails to find another active PCEP session, the state of LSPs by default are not cleared. The PCC does not clear the state of PCC-initiated LSPs; however, the user can do this by deleting the configuration. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 342 PCEP MPLS Guide © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 343: Configuring Rsvp-Te Lsps With Pcep Using The Cli

    MPLS on the PCC Node 4.8.1 PCEP on the PCE Node and the PCC Node Figure 20 shows a multi-level IS-IS topology in the NSP GUI. 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 344: Figure 20 Multi-Level Is-Is Topology In The Nsp Gui

    : stateful-delegate stateful-pce segment-rt-path Local Address : 192.168.48.226 PCE Overloaded : false ------------------------------------------------------------------------------- PCEP Path Computation Element (PCE) Peer Info ------------------------------------------------------------------------------- Peer Sync State Oper Keepalive/Oper DeadTimer © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 345 : From Reno to Atlanta RSVP-TE::secondary_empty Source Address : 192.168.48.194 Destination Address : 192.168.48.224 LSP Delegated : True Delegate PCE Address: 192.168.48.226 Oper Status : up ======================================================================= 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 346: Mpls On The Pcc Node

    "secondary_empty" standby exclude "bottom" bandwidth 5 exit no shutdown ---------------------------------------------- *A:Reno 194# show router mpls lsp "From Reno to Atlanta RSVP-TE" path detail =============================================================================== © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 347 Oper Exclude Groups Adaptive : Enabled Oper Metric : 40 Preference : n/a Path Trans CSPF Queries : 7172 Failure Code : noError Failure Node : n/a 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 348 Adaptive : Enabled Oper Metric : 60 Preference : 255 Path Trans : 28 CSPF Queries : 10 Failure Code : noError Failure Node : n/a © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 349 Oper State : Up LSP Up Time : 0d 00:00:44 LSP Down Time : 0d 00:00:00 Transitions Path Changes Retry Limit Retry Timer : 30 sec 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...
  • Page 350 : Disabled Max SR Labels Additional FRR Labels: 1 Path Profile None Primary(a) : fully_loose Up Time : 0d 00:00:44 Bandwidth : 0 Mbps =============================================================================== *A:7705:Dut-C# © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 351: Pcep Configuration Command Reference

    MPLS Guide PCEP 4.9 PCEP Configuration Command Reference 4.9.1 Command Hierarchies • PCEP Commands • Show Commands 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 352: Pcep Commands

    [lsp-type lsp-type] to ip-address [tunnel-id [tunnel-id]] — lsp-db [lsp-type lsp-type] tunnel-id [tunnel-id] — path-request [lsp-type {rsvp-p2p}] [dest ip-address] [detail] — peer [ip-address] [detail] — status © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...

  • Page 353: Command Descriptions

    MPLS Guide PCEP 4.9.2 Command Descriptions • PCEP Commands • Show Commands 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...

  • Page 354: Pcep Commands

    The no form of the command returns the dead timer to the default value. Default Parameters seconds — the dead timer value, in seconds Values 1 to 255 © 2022 Nokia. 3HE 18686 AAAB TQZZA Use subject to Terms available at: www.nokia.com...
  • Page 355 The no form of the command removes the configured local address of the PCEP speaker. Parameters ip-address — the IP address of the PCEP speaker to be used for in-band sessions 3HE 18686 AAAB TQZZA © 2022 Nokia. Use subject to Terms available at: www.nokia.com...