71
ID:
Ring ID.
Version:
which version of this ring, this field could be Rapid Super Ring, Super
Ring.
Role:
This Switch is RM or nonRM
Status:
If this field is Normal which means the redundancy is activated. If any one
of the links in the Ring is down, then the status will be Abnormal.
RM MAC:
The MAC address of Ring Master of this Ring. It helps to find the
redundant path.
Blocking Port:
This field shows which is blocked port of RM.
Role Transition Count:
This means how many times this switch has changed its
Role from nonRM to RM or from RM to nonRM.
Role state Transition Count
: This number shows how many times the Ring status
has been transformed between Normal and Abnormal state.
4.4.9
Command Lines:
Feature
Command Line
RSTP
Enable
Switch(config)# spanning-tree enable
Disable
Switch (config)# spanning-tree disable
RSTP mode
Switch(config)# spanning-tree mode rapid-stp
SpanningTree Mode change to be RSTP(802.1w) .
STP mode
Switch(config)# spanning-tree mode stp
SpanningTree Mode change to be STP(802.1d) .
Priority
Switch(config)# spanning-tree priority
<0-61440> valid range is 0 to 61440 in multiple of
4096
Switch(config)# spanning-tree priority 4096
Max Age
Switch(config)# spanning-tree max-age
<6-40> Valid range is 6~40 seconds
Switch(config)# spanning-tree max-age 10
Hello Time
Switch(config)# spanning-tree hello-time
<1-10> Valid range is 1~10 seconds
Switch(config)# spanning-tree hello-time 2
Forward Delay
Switch(config)# spanning-tree forward-time
<4-30> Valid range is 4~30 seconds
Switch(config)# spanning-tree forward-time 15
Port Path Cost
Switch(config-if)# spanning-tree cost
<1-200000000> 16-bit based value range from