Managed Switch CLI Manual, Release 8.0.3
Switching Commands 3-23
v1.0, July 2010
no spanning-tree bpduforwarding
This command will cause the STP BPDU packets received from the network to be dropped if STP
is disabled.
show spanning-tree
This command displays spanning tree settings for the common and internal spanning tree. The
following details are displayed.
Format no spanning-tree bpduforwarding
Mode Global Config
Format show spanning-tree
Mode • Privileged EXEC
• User EXEC
Term Definition
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
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
Root Port Max
Age
Derived value.
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