[j-nsp] VPLS issues
Christian
cdebalorre at neotelecoms.com
Fri Nov 30 13:59:20 EST 2012
Hello,
Any luck with the "strict" option at the install-nexthop ?
Rgds,
Christian
Le 30/11/2012 17:41, Richard A Steenbergen a écrit :
> Does anybody have any experience with forced LSP path selection for VPLS
> circuits? Long story short, when we fire up traffic on one particular
> VPLS instance, we're seeing SOME of the traffic it's carrying being
> blackholed. The pattern is one of certain IP or even TCP port pairs
> being blocked, and it seems to rotate over time, which screams "hashing
> across multiple LSPs where one of them is doing something bad, and it
> changes as the LSPs resignal over time" to me. To try and lock this
> down, I'm trying to force the VPLS traffic to route over a single LSP,
> in the usual manner with a forwarding-table export policy, and a very
> simple extended community regexp against the vrf-target community.
>
> term VPLS {
> from community MATCH_VPLS;
> then {
> install-nexthop lsp-regex .*-SILVER.*;
> load-balance per-packet;
> accept;
> }
> }
>
> But it sure as hell doesn't look like it's narrowing the LSP selection:
>
> ras at re0.router> show route forwarding-table family vpls table blah
> Routing table: blah.vpls
> VPLS:
> Destination Type RtRef Next hop Type Index NhRef Netif
> ...
> 00:xx:xx:xx:xx:xx/48 user 0 indr 1050634 5
> idxd 3223 2
> idx:1 xx.xx.142.132 Push 262153, Push 655412(top) 4543 1 xe-7/3/0.0
> idx:1 xx.xx.142.62 Push 262153, Push 752660, Push 691439(top) 1315 1 xe-4/1/0.0
> idx:2 xx.xx.142.132 Push 262153, Push 758372(top) 1923 1 xe-7/3/0.0
> idx:2 xx.xx.142.62 Push 262153, Push 382341, Push 691439(top) 2541 1 xe-4/1/0.0
> idx:3 xx.xx.142.132 Push 262153, Push 758372(top) 1923 1 xe-7/3/0.0
> idx:3 xx.xx.142.62 Push 262153, Push 382341, Push 691439(top) 2541 1 xe-4/1/0.0
> idx:4 xx.xx.142.30 Push 262153, Push 714676(top) 1500 1 xe-4/1/1.0
> idx:4 xx.xx.142.62 Push 262153, Push 619458, Push 378636(top) 3864 1 xe-4/1/0.0
> idx:xx xx.xx.142.82 Push 262153, Push 601828(top) 989 1 xe-5/0/0.0
> idx:xx xx.xx.142.132 Push 262153, Push 684644(top) 3516 1 xe-7/3/0.0
> idx:xx xx.xx.142.62 Push 262153, Push 528898, Push 760875(top) 4766 1 xe-4/1/0.0
> idx:xx xx.xx.142.62 Push 262153, Push 792036, Push 691439(top) 3473 1 xe-4/1/0.0
>
> Any ideas, about this or about troubleshooting the forwarding plane for
> VPLS in general? Other than that VPLS just sucks... :)
>
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