Reference Guide

Column Meaning
Bridge Identifier The bridge identifier for the selected MST instance. It is made up using the bridge priority
and the base MAC address of the bridge.
Bridge Max Age Configured value.
Bridge Max Hops Bridge max-hops count for the device.
Bridge Hello Time Configured value.
Bridge Forward Delay Configured value.
Bridge Hold Time Minimum time between transmission of Configuration Bridge Protocol Data Units (BPDUs).
The following example shows CLI display output for the command.
(Extreme 220) (Routing) #show spanning-tree brief
Bridge Priority................................ 32768
Bridge Identifier.............................. 80:00:00:10:18:48:FC:07
Bridge Max Age................................. 20
Bridge Max Hops................................ 20
Bridge Hello Time.............................. 2
Bridge Forward Delay........................... 15
Bridge Hold Time............................... 6
(Extreme 220) (Routing) #
show spanning-tree interface
This command displays the settings and parameters for a specific switch port within the common and
internal spanning tree. The unit/slot/port is the desired switch port. Instead of unit/slot/port, lag lag-
intf-num can be used as an alternate way to specify the LAG interface. lag lag-intf-num can also be
used to specify the LAG interface where lag-intf-num is the LAG port number. The following details are
displayed on execution of the command.
Format
show spanning-tree interface unit/slot/port|lag lag-intf-num
Mode
•
Privileged EXEC
•
User EXEC
Column Meaning
Hello Time Admin hello time for this port.
Port Mode Enabled or disabled.
BPDU Guard Eect Enabled or disabled.
Root Guard Enabled or disabled.
Loop Guard Enabled or disabled.
TCN Guard Enable or disable the propagation of received topology change
notifications and topology changes to other ports.
BPDU Filter Mode Enabled or disabled.
BPDU Flood Mode Enabled or disabled.
Auto Edge To enable or disable the feature that causes a port that has not seen a
BPDU for edge delay time, to become an edge port and transition to
forwarding faster.
Switching Commands
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