KTI Networks KGS-2421, User Manual

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Configuration Description
Bridge Instance The Bridge instance - CIST, MST1, ...
Bridge ID The Bridge ID of this Bridge instance.
Root ID The Bridge ID of the currently elected root bridge.
Root Port The switch port currently assigned the root port role.
Root Cost Root Path Cost. For the Root Bridge this is zero. For all other Bridges, it is the sum of
the Port Path Costs on the least cost path to the Root Bridge.
Regional Root The Bridge ID of the currently elected regional root bridge, inside the MSTP region
of this bridge. (For the CIST instance only)
Internal Root Cost The Regional Root Path Cost. For the Regional Root Bridge this is zero. For all other
CIST instances in the same MSTP region, it is the sum of the Internal Port Path Costs
on the least cost path to the Internal Root Bridge. (For the CIST instance only)
Topology Flag The current state of the Topology Change Flag for this Bridge instance.
Topology Change Count The number of times where the topology-change flag has been set (during a
one-second interval).
Topology Last The time passed since the Topology Flag was last set.
Physical Ports & Aggregations State
Switch ID The Switch ID of the logical port.
Port The switch port number of the logical STP port.
Port ID The port id as used by the STP protocol. This is the priority part and the logical port
index of the bridge port.
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