H3C S9500E Series Configuration Manual page 88

When the link state is normal, the master node cannot receive Hello packets, and the master
node unblocks the secondary port.
Analysis:
The reasons may be:
•
RRPP is not enabled on some nodes in the RRPP ring.
•
The domain ID or primary control VLAN ID is not the same for the nodes in the RRPP ring.
•
Some ports are abnormal.
Solution:
•
Use the display rrpp brief command to check whether RRPP is enabled for all nodes. If
not, use the rrpp enable command and the ring enable command to enable RRPP and
RRPP rings for all nodes.
•
Use the display rrpp brief command to check whether the domain ID and primary
control VLAN ID are the same for all nodes. If not, set the same domain ID and primary
control VLAN ID for the nodes.
•
Use the display rrpp verbose command to check the link state of each port in each ring.
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