1618 CHAPTER 96: MPLS TE C ONFIGURATION COMMANDSUse the undo mpls te backup command to restore the default.By default, tunnel backup is disabled.n ■ With backup enabled, the record route flag is automatically set to recordreroute regardless of whether the mpls te record-route command isconfigured.■ The backup function cannot be used together with these commands: mpls tereoptimization, mpls te auto-bandwidth adjustment, and mpls teresv-style ff.Example # Enable hot backup on tunnel 0. system-view[Sysname] interface tunnel 0[Sysname-Tunnel0] mpls te backup hot-standbympls te backup bandwidthSyntax mpls te backup bandwidth { bandwidth | { bc0 | bc1 } { bandwidth | un-limited } }undo mpls te backup bandwidthView Tunnel interface viewParameter bandwidth: Total bandwidth that the bypass tunnel (also called the protectiontunnel) can protect, in the range 1 to 32000000 kbps.bc0: Indicates that only the LSPs using BC0 bandwidth (global bandwidth) can usethe bypass tunnel.bc1: Indicates that only the LSPs using BC1 bandwidth (subpool bandwidth) canuse the bypass tunnel.If neither BC0 nor BC1 is specified, all LSPs can use the bypass tunnel.un-limited: Puts on limit on total protected bandwidth.Description Use the mpls te backup bandwidth command to configure the totalbandwidth and type of LSP that the bypass tunnel can protect.Use the undo mpls te backup bandwidth command to remove theconfiguration.By default, bypass tunnels do not protect bandwidth.If neither BC0 nor BC1 is specified, all LSP can use the bypass tunnel.n This command is not supported when the signaling protocol is CR-LDP.
