Configuring VPLS spoke-SDPs with split horizon

Note:

Split horizon groups are supported on all 7210 SAS platforms as described in this document, except those operating in access-uplink mode.

To configure spoke-SDPs with a split horizon group, add the split-horizon-group parameter when creating the spoke-SDP. Traffic arriving on a SAP or spoke-SDP within a split horizon group will not be copied to other SAPs or spoke-SDPs in the same split horizon group.

The following is a sample VPLS configuration output with split horizon enabled.

*A:ALA-1>config>service# info
----------------------------------------------
...
vpls 800 customer 6001 vpn 700 create
     description "VPLS with split horizon for DSL"
     stp
          shutdown
     exit
     spoke-sdp 51:15 split-horizon-group DSL-group1 create
     exit
     split-horizon-group DSL-group1
          description "Split horizon group for DSL"
     exit
     no shutdown
exit
...
----------------------------------------------
*A:ALA-1>config>service#