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{ "lLangCode": "en", "lName": "English", "lCountryCode": "us", "transcode": "en_US" }
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Configuring MAC Pinning on All Pseudowires of a Specific Neighbor of LDP-Based VPLS Routing Instance

date_range 23-Nov-23

A MAC move occurs when a MAC address frequently appears on a different physical interface than the one it was learned on. Frequent MAC moves indicate the presence of loops. To avoid loops across interfaces in virtual private LAN services (VPLS), you can configure MAC pinning.

This topic describes how to configure MAC pinning on all pseudowires of a specific neighbor of an LDP-based VPLS routing instance.

To configure MAC pinning on all pseudowires of a specific neighbor in a VPLS routing instance with LDP signaling:

  1. Configure the interfaces as trunk interfaces and specify the list of VLAN IDs.
    content_copy zoom_out_map
    [edit interfaces]
    user@host# set interfacetype-fpc/pic/port flexible-vlan-tagging
    user@host# set interfacetype-fpc/pic/port encapsulation flexible-ethernet-services
    user@host# set interfacetype-fpc/pic/port unit logical-unit-number encapsulation vlan-vpls;
    user@host# set interfacetype-fpc/pic/port unit logical-unit-number family bridge interface-mode trunk
    user@host# set interfacetype-fpc/pic/port unit logical-unit-number family bridge vlan-id-list vlan-id-numbers
    
  2. Configure the VPLS routing instance and specify the trunk interface.
    content_copy zoom_out_map
    [edit routing-instances]
    user@host# set routing-instance-name instance-type vpls;
    user@host# set routing-instance-name interface interfacetype-fpc/pic/port;
    
  3. Configure the routing protocol and specify the trunk interface and the VPLS identifier.
    content_copy zoom_out_map
    [edit routing-instances]
    user@host# set routing-instance-name protocols vpls interface interfacetype-fpc/pic/port 
    user@host# set routing-instance-name protocols vpls vpls-id vpls-id
    
  4. Configure MAC pinning after specifying the neighbor ID.
    content_copy zoom_out_map
    user@host# set routing-instance-name protocols vpls neighbor neighbor-id mac-pinning
    
  5. In configuration mode, verify the configuration.
    content_copy zoom_out_map
    user@host# show interfaces
        interfaces { 
        interfacetype-fpc/pic/port { 
            flexible-vlan-tagging;
            encapsulation flexible-ethernet-services; 
            unit logical-unit-number {
                encapsulation vlan-vpls;
                family bridge {
                    interface-mode trunk ;
                    vlan-id-list vlan-id-numbers;
                    }
                }
            }
        }
        user@host# show routing-instances
            routing-instances{ 
        routing-instance-name  {
            instance-type vpls;
            interface interfacetype-fpc/pic/port;
        protocols{ 
            vpls {
                interface interfacetype-fpc/pic/port;
            vpls-id vpls-id;
                neighbor neighbor-id  {
                    mac-pinning;
                }
            }
        }
    }
    }
    
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