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Example: Viewing Ethernet Ring Protection Status—Normal Ring Operation

 

Under normal operating conditions, when Ethernet ring protection is configured correctly, the ring protection link (RPL) owner (Router 1 in the configuration example) will see the following:

Router 1 Operational Commands (Normal Ring Operation)

user@router1> show protection-group ethernet-ring aps

Note that the ring protection link is blocked and the node is marked as the originator of the protection.

user@router1> show protection-group ethernet-ring interface

Note that the protection interface is discarding while the other interface is forwarding.

user@router1> show protection-group ethernet-ring node-state

Note that Router 1 is the owner and timers are disabled.

user@router1> show protection-group ethernet-ring statistics group-name pg101

Note that only minimal RAPS messages have been sent to establish the ring.

Under normal operating conditions, the other routers on the ring (Router 2 and Router 3) will see the following similar output:

Router 2 and Router 3 Operational Commands (Normal Ring Operation)

user@router2> show protection-group ethernet-ring aps

Router 3 will see almost identical information.

user@router2> show protection-group ethernet-ring interface

Note that both interfaces are forwarding. Router 3 will see almost identical information.

user@router2> show protection-group ethernet-ring node-state

Note that Router 2 is not the owner. Router 3 will see almost identical information.

user@router2> show protection-group ethernet-ring statistics group-name pg102

Router 3 will see almost identical information.