Dell Catalyst 3130 Command Reference Manual page 807

Chapter 2 Cisco Catalyst Blade Switch 3120 for HP Cisco IOS Commands
Related Commands Command
show interfaces
switchport backup
OL-12248-03
Description
[interface-id] Displays the configured Flex Links and their status on the switch or
for the specified interface.
Cisco Catalyst Blade Switch 3120 for HP Command Reference
switchport backup interface
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