Reference Guide

Default 32768
Format spanning-tree vlan vlan-list priority priority
Mode Global Config
Parameter Description
vlan-list
The VLANs to which to apply this command.
priority
The VLAN bridge priority. Valid values are 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672,
32768, 36864, 40960, 45056, 49152, 53248, 57344, and 61440.
show spanning-tree
This command displays spanning tree settings for the common and internal spanning tree. The
following details are displayed.
Format show spanning-tree
Mode
•
Privileged EXEC
•
User EXEC
Column Meaning
Bridge Priority Specifies the bridge priority for the Common and Internal Spanning tree (CST).
The value lies between 0 and 61440. It is displayed in multiples of 4096.
Bridge Identifier The bridge identifier for the CST. It is made up using the bridge priority and the
base MAC address of the bridge.
Time Since Topology Change Time in seconds.
Topology Change Count Number of times changed.
Topology Change in Progress Boolean value of the Topology Change parameter for the switch indicating if a
topology change is in progress on any port assigned to the common and internal
spanning tree.
Designated Root The bridge identifier of the root bridge. It is made up from the bridge priority and
the base MAC address of the bridge.
Root Path Cost Value of the Root Path Cost parameter for the common and internal spanning tree.
Root Port Identifier Identifier of the port to access the Designated Root for the CST
Bridge Max Age Derived value.
Bridge Max Hops Bridge max-hops count for the device.
Root Port Bridge Forward
Delay
Derived value.
Hello Time Configured value of the parameter for the CST.
Bridge Hold Time Minimum time between transmission of Configuration Bridge Protocol Data Units
(BPDUs).
CST Regional Root Bridge Identifier of the CST Regional Root. It is made up using the bridge priority
and the base MAC address of the bridge.
Regional Root Path Cost Path Cost to the CST Regional Root.
Switching Commands
ExtremeSwitching 200 Series: Command Reference Guide for version 01 .02.04.0007 301