Spanning-Tree Operation
802.1s Multiple Spanning Tree Protocol (MSTP)
Displaying the MSTP Configuration
Displaying the Global MSTP Configuration. This command displays the
switch’s basic and MST region spanning-tree configuration, including basic
port connectivity settings.
Syntax: show spanning-tree config
The upper part of this output shows the switch’s global
spanning-tree configuration that applies to the MST region.
The port listing shows the spanning-tree port parameter
settings for the spanning-tree region operation (configured by
the spanning-tree < port-list > command). For information on
these parameters, refer to
“Configuring Basic Port
Connectivity Parameters” on page 6-61.
Syntax: show spanning-tree < port-list > config
This command shows the same data as the above command,
but lists the spanning-tree port parameter settings for only the
specified port(s) and/or trunk(s). You can list data for a series
of ports and port trunks by specifying the first and last port
or trunk of any consecutive series of ports and trunks. For
example, to display data for port A20-A24 and trk1, use this
command: show spanning-tree a20-trk1 config
Global Hello Time
Per-Port Hello Time
(Overrides Global Hello-
Time on individual ports.)
Per-Port Priority
Global Priority
Figure 6-30. Example of Displaying the Switch’s Global Spanning-Tree Configuration
6-74
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