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Configuration Guide - MPLS

S7700 and S9700 V200R010C00

This document describes MPLS configurations supported by the switch, including the principle and configuration procedures of static LSPs, MPLS LDP, MPLS TE, MPLS QoS, MPLS OAM, Seamless MPLS, and MPLS common features, and provides configuration examples.
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Establishing a Static LSP

Establishing a Static LSP

Context

Static LSPs and static Constraint-based Routed LSPs (CR-LSPs) share the same label space (16-1023). Note that the value of the outgoing label of the previous node is equal to the value of the incoming label of the next node.

Perform the following operations on the ingress, transit, and egress nodes of the static LSP. Figure 2-2 shows planned labels.

Figure 2-2  Networking of establishing a static LSP

Procedure

  1. Configure the ingress node.
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      static-lsp ingress lsp-name destination ip-address { mask-length | mask } { nexthop next-hop-address | outgoing-interface interface-type interface-number } * out-label out-label

      The local node is configured as the ingress node of a specified LSP.

      You are advised to set up a static LSP by specifying a next hop. Ensure that the local routing table contains the route entries, including the destination IP address and the next hop IP addresses of the LSP to be set up.

      If an Ethernet interface is used as an outbound interface of an LSP, the nexthop next-hop-address parameter must be configured.

      As shown in Figure 2-2, the LSP name is LSP1, destination address is 3.3.3.9/32, next hop address is 172.16.1.2, outbound interface is Vlanif100, and outgoing label is 100.

  2. Configure the transit node.
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      static-lsp transit lsp-name [ incoming-interface interface-type interface-number ] in-label in-label { nexthop next-hop-address | outgoing-interface interface-type interface-number } * out-label out-label

      The local node is configured as the transit node of a specified LSP.

      You are advised to set up a static LSP by specifying a next hop address. In addition, ensure that the local routing table contains the route entries, including the destination IP address and the next hop IP address of the LSP to be set up.

      If an Ethernet interface is used as an outbound interface of an LSP, the nexthop next-hop-address parameter must be configured.

      As shown in Figure 2-2, the LSP name is LSP1, the inbound interface is Vlanif100, incoming label is 100, next hop address is 172.20.1.2, outbound interface is Vlanif200, and outgoing label is 200.

  3. Configure the egress node.
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      static-lsp egress lsp-name [ incoming-interface interface-type interface-number ] in-label in-label [ lsrid ingress-lsr-id tunnel-id tunnel-id ]

      The local node is configured as the egress node of a specified LSP.

      As shown in Figure 2-2, the LSP name is LSP1, the inbound interface is Vlanif200, and incoming label is 200.

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Updated: 2019-04-18

Document ID: EDOC1000141902

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