Topologi:
Config:
rstp disable
rstp disable port 1
rstp disable port 2
rstp disable port 3
ring-protection logical-ring create logical-ring-name LR1 ring-id 77 west-port 1 east-port 3
ring-protection virtual-ring create virtual-ring-name VR1 logical-ring LR1 raps-vid 4077
ring-protection virtual-ring set ring VR1 west-port-rpl owner
ring-protection virtual-ring add ring VR1 vid 713
ring-protection virtual-ring add ring VR1 vid 715
ring-protection virtual-ring add ring VR1 vid 719-720
+ cfm config (if needed)
cfm enable
cfm service create vlan 777 name CFM1
cfm service set service CFM1 ccm-interval 10ms
cfm service enable service CFM1