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Field Description
CIST RootPortId
CIST root port ID. "0.0" indicates that the device is the root, and there is no root
port.
Root PortId
VLAN root port ID. "0.0" indicates that the device is the root, and there is no root
port.
BPDU-Protection Global
status of BPDU protection.
Bridge Config-
Digest-Snooping
Global status of Digest Snooping.
TC or TCN received
Number of TC/TCN BPDUs received in the MSTI.
Time since last TC
Time after the latest topology change in the MSTI.
[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, which can be Alternate, Backup, Root, Designated, Master, or
Disabled.
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 packets sent within each hello time.
Protection Type
Protection type on the port:
•
Root
—Root guard.
•
Loop
—Loop guard.
•
BPDU
—BPDU guard.
•
BPDU/ROOT
—BPDU guard and root guard.
•
None
—No protection.
MST BPDU Format
Format of the MST BPDUs that the port can send, which can be legacy or
802.1s.
•
Config
—Configured value.
•
Active
—Actual value.
Port Config-
Digest-Snooping
Status of Digest Snooping on the port.
Rapid transition
The port rapidly transits to the forwarding state or not in the MSTI.
Num of Vlans Mapped
Number of VLANs mapped to the MSTI.
