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19.11 Operation for Multiple Spanning Tree
19.11.1 List of operation commands
The following table describes the operation commands for Multiple Spanning Tree.
Table 19-19 List of operation commands
Command name
show spanning-tree
show spanning-tree statistics
clear spanning-tree statistics
clear spanning-tree
detected-protocol
show spanning-tree port-count
19.11.2 Checking the Multiple Spanning Tree status
Use the
show spanning-tree
Spanning Tree. To check that the topology has been built properly, make sure that the
following items are correct:
The region settings (
MST Instance
The contents of
The
The following figure shows the results of executing the
Figure 19-16 Execution results of show spanning-tree
> show spanning-tree mst instance 4095
Date 2008/11/14 13:04:05 UTC
Multiple Spanning Tree: Enabled
Revision Level: 0
MST Instance 4095
VLAN Mapped: 4094
Regional Root
Internal Root Cost
Bridge ID
Regional Bridge Status : Root
Port Information
0/17
0/18
0/19
0/20
0/21
0/22
ChGr:8
>
1.
Displaying instance mapping VLANs (VLAN Mapped)
Description
Displays Spanning Tree information.
Displays statistics about Spanning Tree Protocols.
Clears statistics about Spanning Tree Protocols.
Forces recovery of STP compatible mode for Spanning Tree
Protocols.
Displays the number of accommodated Spanning Tree Protocols.
operation command to check information about Multiple
Revision Level
)
Regional Root
Status
and
Role
for
Port Information
Configuration Name:
Priority: 36863
: 0
Priority: 36863
Down Status:Disabled
Down Status:Disabled
Down Status:Disabled
Up
Status:Forwarding
Down Status:Disabled
Up
Status:Forwarding
Down Status:Disabled
19 Spanning Tree Protocol
,
Configuration Name
show spanning-tree
MAC
: 00ed.f010.0001
Root Port: -
MAC
: 00ed.f010.0001
Role:-
-
Role:-
-
Role:-
-
Role:Designated
PortFast
Role:-
-
Role:Designated
-
Role:-
RootGuard
, and
VLAN Mapped
for
command.
337
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