Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 535)

Multi-Service IronWare Switching Configuration Guide 505
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Displaying MRP information
14
Displaying ring information
To display ring information, enter the following command.
Syntax: show metro [ring-id]
This display shows the following information.
Brocade(config)# show metro
Metro Ring 10 - VLAN Type REGULAR
==============
Ring State Ring Master Topo Hello Prefwing
id role vlan group time(ms) time(ms)
10 enabled member 7 1 100 300
Ring interfaces Interface role Interface state interface type
ethernet 1/1 primary forwarding regular
ethernet 30/1 secondary forwarding regular
RHPs sent RHPs rcvd TC rcvd TC sent State changes
0 0 69 0 6
TABLE 64 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
Topo group The topology group ID if a topology group is configured. This field will show the
value ‘not conf’ if no topology group is in use.
Hello time The interval, in milliseconds, which the forwarding port on the ring’s master
node sends Ring Hello Packets (RHPs). Configured in increments of 100ms.
Prefwing time The number of milliseconds a MRP interface will wait to move an interface in
blocking state to preforwarding state if no RHP’s are received. It is also the
number of milliseconds that an 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.
Configured in increments of 100ms.
NOTE: A member node’s preforwarding interface also changes from
preforwarding to forwarding if it receives an RHP whose forwarding bit
is on.
Ring interfaces The device’s two interfaces with the ring.
NOTE: If the interfaces are trunk groups, only the primary ports of the groups
are listed.