115
Field Description
Bridge times
Major parameters for the bridge:
• Hello—Hello timer.
• MaxAge—Maximum age timer.
• FwdDelay—Forward delay timer.
• MaxHops—Maximum hops within the MST region.
Root ID/ERPC CIST root ID and external path cost (the path cost from the device to the CIST root).
RegRoot ID/IRPC
CIST regional root ID and internal path cost (the path cost from the device to the
CIST regional root).
VlanRoot ID/RPC
VLAN root ID and root path cost (the path cost from the device to the VLAN root
bridge).
RootPort ID
Root port ID. The value
0.0
indicates that the device is the root and there is no root
port.
BPDU-Protection Global status of the BPDU guard feature.
Bridge Config-
Digest-Snooping
Global status of Digest Snooping.
TC or TCN received Number of TC/TCN BPDUs received in the MSTI or VLAN.
Time since last TC Time since the latest topology change in the MSTI or VLAN.
[FORWARDING] The port is in forwarding state.
[DISCARDING] The port is in discarding state.
[LEARNING] The port is in learning state.
Port protocol Status of the spanning tree feature on the port.
Port role
Port role:
• Alternate.
• Backup.
• Root.
• Designated.
• Master.
• Disabled.
(Boundary) The port is a regional boundary port.
Port cost(Legacy)
Path cost of the port. The field in parentheses indicates the standard (legacy,
dot1d-1998, or dot1t) used for port path cost calculation.
• Config—Configured value.
• Active—Actual value.
Desg.bridge/port
Designated bridge ID and port ID of the port.
The port ID displayed is insignificant for a port which does not support port priority.
Port edged
The port is an edge port or non-edge port.
• Config—Configured value.
• Active—Actual value.
Point-to-Point
The port is connected to a point-to-point link or not.
• Config—Configured value.
• Active—Actual value.
Transmit limit Maximum number of BPDUs sent by a port within each hello time.
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