188defaults to 0. Holdoff time = holdoff time factor × 500 milliseconds. Therefore, the maximum holdoff timeis 10 seconds.mode: Specifies the reverting mode, non-revertive or revertive. The default reverting mode is revertive.non-revertive: Specifies the non-revertive mode. In this mode, data is not switched back from theprotection tunnel to the primary tunnel even if the primary tunnel recovers.revertive: Specifies the revertive mode. In this mode, data is switched back from the protection tunnel tothe primary tunnel when the primary tunnel recovers.wtr wtr-time: Specifies the reverting delay time, or, the time to wait before switching back to the primarytunnel. The wtr-time is the WTR time factor, which is in the range of 0 to 60 and defaults to 24. WTR time= WTR time factor × 30 seconds. Therefore, the default WTR time is 12 minutes.one-plus-one: Specifies the protection switching mode as 1+1. If you do not specify this keyword, theprotection switching mode is 1:1.Usage guidelinesTo configure the 1+1 protection switching mode, you must follow these guidelines:• The primary and backup tunnels are both bidirectional MPLS TE tunnels.• Specify the 1+1 mode on both ends of the tunnel.• Specify the bidirectional path switching mode on both ends of the tunnel.• Specify the same reverting mode and switching delay time on both ends of the tunnel.Before configuring the mpls te protection tunnel command, execute the tunnel-protocol mpls tecommand in tunnel interface view.The configured protection tunnel takes effect only after you execute the mpls te commit command in thetunnel interface view.Because bypass tunnels configured in TE FRR cannot be applied in VPN applications, do not configurea protection tunnel for a bypass tunnel of TE FRR.Examples# Configure a protection tunnel for tunnel 1. system-view[Sysname] interface tunnel 1[Sysname-Tunnel1] mpls te protection tunnel 102 holdoff 20 mode revertive wtr 30[Sysname-Tunnel1] mpls te commitmpls te protect-switchUse mpls te protect-switch to configure a switching action for a tunnel.Syntaxmpls te protect-switch { clear | force | lock | manual }DefaultNo switching action is configured.ViewsTunnel interface view
