American Fibertek SM8P-SFP - Manual (Page 193)

183 Rev.A1
18-May-11
Parameter description:
MSTP State:
MSTP protocol is Enable or Disable.
Force Version:
It shows the current spanning tree protocol version configured.
Bridge Max Age:
It shows the Max Age setting of the bridge itself.
Bridge Forward Delay:
It shows the Forward Delay setting of the bridge itself.
Bridge Max Hops:
It shows the Max Hops setting of the bridge itself.
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: