show tech-support

To display troubleshooting information about backup interfaces or Flex Links, use the show tech-support command.

show tech-support { backup | flexlink }

Syntax Description

backup
Displays troubleshooting information about backup interfaces.
flexlink
Displays troubleshooting information about Flex Links.

Command Default

None

Command Modes

EXEC mode

Command History

Release
Modification
5.0(3)N2(1)
This command was introduced.

Examples

This example shows how to display the troubleshooting information about backup interfaces:

switch# show tech-support backup
`show interface switchport backup detail`
 
 
Switch Backup Interface Pairs:
 
Active Interface Backup Interface State
------------------------------------------------------------------------
Ethernet1/2 Ethernet1/1 Active Down/Backup Down
Preemption Mode : off
Multicast Fast Convergence : Off
Bandwidth : 1000000 Kbit (Ethernet1/2), 10000000 Kbit (Ethernet1/1)
 
Ethernet1/20 Ethernet1/21 Active Down/Backup Down
Preemption Mode : off
Multicast Fast Convergence : Off
Bandwidth : 10000000 Kbit (Ethernet1/20), 10000000 Kbit (Ethernet1/21)
 
port-channel300 port-channel301 Active Up/Backup Down
Preemption Mode : forced
Preemption Delay : 35 seconds (default)
Multicast Fast Convergence : On
Bandwidth : 20000000 Kbit (port-channel300), 10000000 Kbit (port-channel 301)
 
<--Output truncated-->
switch#
 

This example shows how to display the troubleshooting information for Flex Links:

switch# show tech-support flexlink
 

Related Commands

Command
Description
show running-config backup
Displays the running configuration information for backup interfaces.
show running-config flexlink
Displays Flex Links running configuration information.