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PowerConnect B-Series TI24X Configuration Guide 215
53-1002269-02
Metro Ring Protocol (MRP)
8
Syntax: show metro <ring-id>
This display shows the following information.
TABLE 34 CLI display of MRP ring information
This field... Displays...
Ring id The ring ID
State The state of MRP. The state can be one of the following:
• enabled – MRP is enabled
• disabled – MRP is disabled
Ring role Whether this node is the master for the ring. The role can be one of the
following:
• master
• member
Master vlan The ID of the master VLAN in the topology group used by this ring. If a
topology group is used by MRP, the master VLAN controls the MRP
settings for all VLANs in the topology group.
NOTE: The topology group ID is 0 if the MRP VLAN is not the master
VLAN in a topology group. Using a topology group for MRP
configuration is optional.
Topo group The topology group ID.
Hello time The interval, in milliseconds, at which the Forwarding port on the ring
master node sends Ring hello Packets (RHPs).
Prefwing time The number of milliseconds an MRP interface that has entered the
Preforwarding state will wait before changing to the Forwarding state.
If a member port in the Preforwarding state does not receive an RHP
within the Preforwarding time (Prefwing time), the port assumes that a
topology change has occurred and changes to the Forwarding state.
The secondary port on the master node changes to Blocking if it receives
an RHP, but changes to Forwarding if the port does not receive an RHP
before the preforwarding time expires.
NOTE: A member node Preforwarding interface also changes from
Preforwarding to Forwarding if it receives an RHP whose
forwarding bit is on.