Comnet CNGE3FE8MSPOE - STP Detailed Bridge Status; CIST Ports & Aggregations State

INS_CNGE3FE8MS[POE][HO] Rev. 11.7.17 PAGE 213
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STP Detailed Bridge Status
This page provides detailed information on a single STP bridge instance, along with port state for
all active ports associated.
Object Description
STP Bridge Status
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 of this Bridge instance.
Topology
Change Count
The number of times where the topology change flag has been set (during a one-second interval).
Topology
Change Last
The time passed since the Topology Flag was last set.
CIST 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.
Role The current STP port role. The port role can be one of the following values: AlternatePort
BackupPort RootPort DesignatedPort.
State The current STP port state. The port state can be one of the following values: Discarding Learning
Forwarding.