Configuring VPLS SAPs with split horizon

To configure a VPLS service with a split horizon group, add the split-horizon-group parameter when creating the SAP. Traffic arriving on a SAP within a split horizon group is not copied to other SAPs in the same split horizon group.

The following example shows a VPLS configuration with split horizon enabled:

*A:ALA-1>config>service# info
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...
    vpls 800 customer 6001 vpn 700 create
        description "VPLS with split horizon for DSL"
        stp
            shutdown
        exit
        sap 1/1/3:100 split-horizon-group DSL-group1 create
            description "SAP for residential bridging"
        exit    
        sap 1/1/3:200 split-horizon-group DSL-group1 create
            description "SAP for residential bridging"
        exit
        split-horizon-group DSL-group1
            description "Split horizon group for DSL"
        exit
        no shutdown
    exit
...
----------------------------------------------
*A:ALA-1>config>service#