Hello Folks, I have a question regarding mpls-te auto-backup tunnels. I play with a network like below one, where I run mpls-te with FRR: PE P P PE R1----R2-----R3-----R4 | | | | | | | | | | | | R5----R6-----R7-----R8
There are full-mash primary tunnels (like R1->R4/R8 so on) and to build backup tunnels - auto-backup tunnels feature is used: mpls traffic-eng tunnels mpls traffic-eng auto-tunnel backup mpls traffic-eng auto-tunnel backup config unnumbered-interface Loopback0 mpls traffic-eng auto-tunnel backup timers removal unused 3600 0 mpls traffic-eng auto-tunnel backup tunnel-num min 8000 max 9999 So, as it could be seen from the config above, both NHOP and NNHOP backup tunnels are setup. But when I crash the network like to shutdown R2 and R3 I can see that, for example, R1 builds a backup tunnel from R1 to R4 which is neither NHOP nor NNHOP tunnel. So here is my question why it happens? Is it expected behaviour or not? BR, Aleksey Koltsov _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
