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Instance Priority:
Spanning tree priority value for a specific tree instance(CIST or MSTI)
Bridge Mac Address:
The Mac Address of the bridge itself.
CIST ROOT PRIORITY:
Spanning tree priority value of the CIST root bridge
CIST ROOT MAC:
Mac Address of the CIST root bridge
CIST EXTERNAL ROOT PATH COST:
Root path cost value from the point of view of the bridge’s MST region.
CIST ROOT PORT ID:
The port ID of the bridge’s root port. In MSTP, peer port of a root port
may reside in defferent MST region or in the same MST region.The first
case indicates that the root port’s owner is the CIST regional root bridge.
CIST REGIONAL ROOT PRIORITY:
Spanning tree priority value of the CIST regional root bridge.Note that
CIST Regional Root bridge is different from CIST Root bridge.One
exception is that when a bridge belonging to an MST region happens to
be the root bridge of the CST(Common Spanning Tree). An MST Region
in the CST can be regarded as a common RSTP bridge.The IST(Internal
Spanning Tree) and MSTIs are transparent to bridges outside this region.
CIST REGIONAL ROOT MAC:
Mac Address of the CIST regional root bridge.
CIST INTERNAL ROOT PATH COST:
Root path cost value from the point of view of the bridges inside the IST.
CIST CURRENT MAX AGE:
Max Age of the CIST Root bridge.
CIST CURRENT FORWARD DELAY:
Forward Delay of the CIST Root bridge.
TIME SINCE LAST TOPOLOGY CHANGE(SECs):
Time Since Last Topology Change is the elapsed time in unit of seconds
for a bunch of “Topology Change and(or) Topology Change Notification
receiving” to occur. When new series of Topology Changes occur again,
this counter will be reset to 0.
TOPOLOGY CHANGE COUNT(SECs):
The per spanning tree instanceTopology Change Count expresses the
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