Cisco 3825 Software Configuration Guide - Page 138

backup delay Appendix A Cisco 3825 Mobile Wireless Edge Router RAN-O Command Reference 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. backup delay enable-delay {disable-delay | never} Syntax Description 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. 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 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. 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 OL-15667-03