Monitoring Flex Links; Configuring Flex Links - Cisco WS-SUP32-GE-3B - Supervisor Engine 32 Software Configuration Manual

Chapter 9

Configuring Flex Links

Configuring Flex Links
To configure Flex Links, perform this task:
Command
Step 1
Router# configure terminal
Step 2
Router(conf)# interface {{type
{port-channel number}}
Step 3
Router(conf-if)# switchport backup interface
1
{{type slot/port} | {port-channel number}}
Step 4
Router(conf-if)# exit
Step 5
Router# show interface [{type
{port-channel number}] switchport backup
Step 6
Router# copy running-config startup config
1. type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet
This example shows how to configure an interface with a backup interface and how to verify the
configuration:
Router# configure terminal
Router(conf)# interface fastethernet1/1
Router(conf-if)# switchport backup interface fastethernet1/2
Router(conf-if)# exit
Router# show interface switchport backup
Router Backup Interface Pairs:
Active Interface
------------------------------------------------------------------------------------------
FastEthernet1/1
FastEthernet1/3
Port-channel1

Monitoring Flex Links

Table 9-1
OL-11439-03
Bridge Assurance
–
UplinkFast
–
BackboneFast
–
EtherChannel Guard
–
Root Guard
–
Loop Guard
–
PVST Simulation
–
1
slot/port} |
1
slot/port} |
Backup Interface
FastEthernet1/2
FastEthernet2/4
GigabitEthernet7/1
shows the privileged EXEC command for monitoring the Flex Links configuration.
Catalyst Supervisor Engine 32 PISA Cisco IOS Software Configuration Guide, Release 12.2ZY
Purpose
Enters global configuration mode.
Specifies a Layer 2 interface.
Configures the interface as part of a Flex Links pair.
Exits configuration mode.
Verifies the configuration.
(Optional) Saves your entries in the switch startup
configuration file.
State
Active Up/Backup Standby
Active Up/Backup Standby
Active Up/Backup Standby
Monitoring Flex Links
9-3