Configuring an MPLS Interface

The interface must exist in the system before it can be configured as an MPLS interface; see the 7705 SAR Router Configuration Guide for more information.

Once the MPLS protocol instance is created, the no shutdown command is not required since MPLS is administratively enabled upon creation. Configure the label-map parameters if the interface is used in a static LSP.

Use the following CLI syntax to configure an MPLS interface on a router:

CLI Syntax:

config>router>mpls
    interface ip-int-name
        admin-group group-name [group-name...(up to 5 max)]
        label-map in-label
            pop
            swap out-label next-hop ip-address
            no shutdown
        srlg-group group-name [group-name...(up to 5 max)]
        te-metric value
        no shutdown

Example:

config>router# mpls
config>router>mpls# interface to-104
config>router>mpls>if# label-map 35
config>router>mpls>if>label-map# swap 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.

A:ALU-1>config>router>mpls# info
----------------------------------------------
            interface "to-104"
                admin-group "green"
                admin-group "red"
                admin-group "yellow"
                label-map 35
                    swap 36 nexthop 10.10.10.91
                    no shutdown
                srlg-group "SRLG_fiber_1"
                exit
            exit
            no shutdown