Table of Contents
Advertisement
Figure 20-27 Operation during recovery from a shared link fault
(a) Operation for each node in a shared link monitoring ring
1. Ring restoration is detected due to HC(M) reception.
When the master node receives an HC(M) sent by itself, it determines that recovery
from the ring fault has occurred, and performs restoration. For details about
operation for the master node and transit nodes when recovery is detected, because
operation is the same as for multi-rings, see (2) Operation when recovery is detected
in 20.4.2 Operation for shared link faults and restoration.
2. The MAC address table is cleared.
Transit nodes receive flush control frames sent from the master node, and clear the
MAC address table.
3. The status is changes to Forwarding.
When transit nodes receive flush control frames sent from the master node, they
change the ring VLAN status of the ring port after recovery from the link fault to
Forwarding.
20 Description of the Ring Protocol
379
Advertisement
Table of Contents
