Command Line Interface
4-218
4
Command Usage
• Use the
show spanning-tree
command with no parameters to display the
spanning tree configuration for the switch for the Common Spanning Tree
(CST) and for every interface in the tree.
• Use the
show spanning-tree
interface
command to display the spanning tree
configuration for an interface within the Common Spanning Tree (CST).
• Use the
show spanning-tree mst
instance_id
command to display the
spanning tree configuration for an instance within the Multiple Spanning Tree
(MST).
• For a description of the items displayed under “Spanning-tree information,”
see “Configuring Global Settings” on page 3-148. For a description of the
items displayed for specific interfaces, see “Displaying Interface Settings” on
page 3-152.
Example
Console#show spanning-tree
Spanning-tree information
---------------------------------------------------------------
Spanning tree mode: MSTP
Spanning tree enable/disable: enable
Instance: 0
Vlans configuration: 1-4092
Priority: 32768
Bridge Hello Time (sec.): 2
Bridge Max Age (sec.): 20
Bridge Forward Delay (sec.): 15
Root Hello Time (sec.): 2
Root Max Age (sec.): 20
Root Forward Delay (sec.): 15
Max hops: 20
Remaining hops: 20
Designated Root: 32768.0.0000ABCD0000
Current root port: 1
Current root cost: 10000
Number of topology changes: 1
Last topology changes time (sec.): 22
Transmission limit: 3
Path Cost Method: long
---------------------------------------------------------------
Eth 1/ 1 information
---------------------------------------------------------------
Admin status: enable
Role: root
State: forwarding
External admin path cost: 10000
Internal admin cost: 10000
External oper path cost: 10000
Internal oper path cost: 10000
Priority: 128
Designated cost: 200000
Designated port: 128.24
Designated root: 32768.0.0000ABCD0000
Designated bridge: 32768.0.0030F1552000
Fast forwarding: disable
Forward transitions: 1
Admin edge port: enable
Summary of Contents for 6128PL2
Page 2: ......
Page 8: ...viii ...
Page 26: ...Contents xviii ...
Page 30: ...Tables xxii ...
Page 52: ...Initial Configuration 2 10 2 ...
Page 308: ...Configuring the Switch 3 256 3 ...
Page 473: ...SNMP Commands 4 165 4 ...
Page 644: ...Command Line Interface 4 336 4 ...
Page 648: ...Software Specifications A 4 A ...
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