Specifications

show spanning-tree
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show spanning-tree
Displays Spanning Tree information.
Syntax
show spanning-tree [{vlan [ <VLAN ID list>] | single | mst [ instance <MSTI ID list>]} [port
<Port# list>] [channel-group-number <Channel group# list>]] [detail] [active]
Input mode
User mode and administrator mode
Parameters
{vlan [<VLAN ID list>] | single | mst [ instance <MSTI ID list>]}
vlan
Displays PVST+ Spanning Tree information.
<VLAN ID list>
Displays PVST+ Spanning Tree information for the VLAN IDs specified in list
format.
For details about how to specify <VLAN ID list>, see Specifiable values for
parameters.
Operation when this parameter is omitted:
Statistics for all VLANs for which PVST+ is operating are displayed.
single
Displays information about Single Spanning Tree.
mst
Displays information about Multiple Spanning Tree.
instance <MSTI ID list>
Displays information about Multiple Spanning Tree for the MST instance IDs
specified in list format. Specifiable values for MST instance ID are in the range
from 0 to 4095.
If
0 is specified as the MST instance ID, CIST is subject to display.
Operation when this parameter is omitted:
All MST instances are subject to display.
port <Port# list>
Displays Spanning Tree information for the specified port number. For details about
how to specify <Port# list> and the specifiable range of values, see Specifiable
values for parameters.
channel-group-number <Channel group# list>
Displays Spanning Tree information for the channel groups specified in list format.
For details about how to specify <Channel group# list>, see Specifiable values for
parameters.
Note on setting parameters
This command can display only the information relevant to the condition applied by a
parameter that has been set. If the parameter has not been set, information is
displayed with no condition applied. If multiple parameters are specified, information
that meets the conditions will be displayed.