HP Cisco Catalyst Blade Switch 3020 Cisco Catalyst Blade Switch 3020 for HP Co - Page 521

Chapter 2 Cisco Catalyst Blade Switch 3020 for HP Cisco IOS Commands switchport backup interface switchport backup interface Use the switchport backup interface interface configuration command on a Layer 2 interface to configure Flex Links, a pair of interfaces that provide backup to each other. Use the no form of this command to remove the Flex Links configuration. switchport backup interface {interface-id} [mmu primary vlan vlan-id | preemption {delay delay-time | mode {bandwidth | forced | off}}] no switchport backup interface {interface-id} [mmu primary vlan | preemption {delay | mode}] Syntax Description interface-id mmu primary vlan vlan-id preemption mode bandwidth forced off delay delay-time Specify that the Layer 2 interface to act as a backup link to the interface being configured. The interface can be a physical interface or port channel. The port-channel range is 1 to 48. Configure the MAC move update (MMU) for a backup interface pair. The VLAN ID of the private-VLAN primary VLAN; valid range is 1 to 4094. Configure a preemption scheme for a backup interface pair. Specifies a preemption mode as bandwidth, forced, or off. (Optional) Specify that the interface with the higher available bandwidth always preempts the backup. (Optional) Specify that the interface always preempts the backup. (Optional) Specify that no preemption occurs from backup to active. (Optional) Specify a preemption delay; the valid values are 1 to 300 seconds. Defaults The default is to have no Flex Links defined. Preemption mode is off. No preemption occurs. Preemption delay is set to 35 seconds. Command Modes Interface configuration Command History Release 12.2(25)SEF Modification This command was introduced. OL-8916-01 Cisco Catalyst Blade Switch for HP Command Reference 2-493