To configure MAC learning protection, configure split horizon, MAC protection, and SAP parameters on the 7450 ESS or 7750 SR.
The following example shows a VPLS configuration with split horizon enabled:
A:ALA-48>config>service>vpls# info
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description "IMA VPLS"
split-horizon-group "DSL-group1" create
restrict-protected-src
restrict-unprotected-dst
exit
mac-protect
mac ff:ff:ff:ff:ff:ff
exit
sap 1/1/9:0 create
ingress
scheduler-policy "SLA1"
qos 100 shared-queuing
exit
egress
scheduler-policy "SLA1"
filter ip 10
exit
restrict-protected-src
arp-reply-agent
host-connectivity-verify source-ip 10.144.145.1
exit
...
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A:ALA-48>config>service>vpls#