Configuring A Preemption Scheme For A Pair Of Flex Links - Cisco Catalyst 2960 series Configuration Manual

Restrictions for Configuring Flex Links and MAC Address-Table Move Update, on page 373
Configuring Flex Links: Examples, on page 387
Flex Links Configuration, on page 375
Monitoring Flex Links, Multicast Fast Convergence, and MAC Address-Table Move Update, on page
386
Configuring Flex Links: Examples, on page 387

Configuring a Preemption Scheme for a Pair of Flex Links

SUMMARY STEPS
1. configure terminal
2. interface interface-id
3. switchport backup interface interface-id
4. switchport backup interface interface-id preemption mode [forced | bandwidth | off]
5. switchport backup interface interface-id preemption delay delay-time
6. end
7. show interface [interface-id] switchport backup
8. copy running-config startup config
DETAILED STEPS
Command or Action
Step 1 configure terminal
Example:
Switch# configure terminal
Step 2 interface interface-id
Example:
Switch(conf)# interface gigabitethernet1/0/1
Step 3
switchport backup interface interface-id
Example:
Switch(conf-if)# switchport backup interface
gigabitethernet1/0/2
Step 4 switchport backup interface interface-id preemption
mode [forced | bandwidth | off]
How to Configure Flex Links and the MAC Address-Table Move Update Feature
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
Purpose
Enters global configuration mode
Specifies the interface, and enters interface configuration mode.
The interface can be a physical Layer 2 interface or a port
channel (logical interface). The port-channel range is 1 to 24.
Configures a physical Layer 2 interface (or port channel) as
part of a Flex Links pair with the interface. When one link is
forwarding traffic, the other interface is in standby mode.
Configures a preemption mechanism and delay for a Flex Links
interface pair. You can configure the preemption as:
381