Backup Delay - Cisco 3825 Software Configuration Manual
Mobile wireless edge router
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backup delay
backup delay
To specify how long a backup pseudowire (PW) virtual circuit (VC) should wait before resuming
operation after the primary PW VC goes down, use the backup delay command in the interface
configuration mode or xconnect configuration mode.
Syntax Description
enable-delay
disable-delay
never
Defaults
If a failover occurs, the xconnect redundancy algorithm immediately switches over or falls back to the
backup or primary member in the redundancy group.
Command Modes
Interface configuration
Xconnect configuration
Command History
Release
12.0(31)S
12.2(28)SB
12.4(11)T
12.2(33)SRB
12.4(16)MR
Examples
The following example shows a Multiprotocol Label Switching (MPLS) xconnect with one redundant
peer. Once a switchover to the secondary VC occurs, there is no fallback to the primary VC unless the
secondary VC fails.
Router# config t
Router(config)# pseudowire-class mpls
Router(config-pw-class)# encapsulation mpls
Router(config-pw-class)# exit
Router(config)# interface atm1/0/0
Router(config-if)# xconnect 10.0.0.1 50 pw-class mpls
Router(config-if-xconn)# backup peer 10.0.0.2 50
Router(config-if-xconn)# backup delay 0 never
Router(config-if-xconn)# exit
Router(config-if)# exit
Router(config)# exit
Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide
A-6
backup delay enable-delay {disable-delay | never}
Number of seconds that elapse after the primary PW VC goes down before the
Cisco IOS software activates the secondary PW VC. The range is 0 to 180.
The default is 0.
Number of seconds that elapse after the primary PW VC comes up before the
Cisco IOS software deactivates the secondary PW VC. The range is 0 to 180.
The default is 0.
The secondary PW VC does not fall back to the primary PW VC if the primary
PW VC becomes available again, unless the secondary PW VC fails.
Modification
This command was introduced.
This command was integrated into Cisco IOS Release 12.2(28)SB.
This command was integrated into Cisco IOS Release 12.4(11)T.
This command was integrated into Cisco IOS Release 12.2(33)SRB.
This command was integrated into Cisco IOS Release 12.4(16)MR.
Appendix A
Cisco 3825 Mobile Wireless Edge Router RAN-O Command Reference
OL-15667-03
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