Okay that¹s good to know. Thanks for the help
Kind regards, Sigurbjörn From: Harold Ritter <[email protected]> Date: Thu, 7 Oct 2010 13:12:34 -0400 To: "Sigurbjörn B. Lárusson" <[email protected]> Cc: <[email protected]> Subject: Re: [c-nsp] Weird 6PE problem on ASR1k Hi Sigurbjörn, I believe the behavior has been explicitly changed. You would see the same behavior on the 7200 if you used SRD4. So going forward, you should configure the "set mpls-label" whenever a route-map is used. Regards Le 2010-10-07 à 12:13, Sigurbjörn Birkir Lárusson a écrit : > That worked! > > At least that¹s a usable workaround until this is fixed (I¹m assuming this is > a bug, might be wrong though) > > Kind regards, > Sigurbjörn B. Lárusson > > > From: Harold Ritter <[email protected] <x-msg://88/[email protected]> > > Date: Thu, 7 Oct 2010 11:59:51 -0400 > To: "Sigurbjörn B. Lárusson" <[email protected] > <x-msg://88/[email protected]> > > Cc: <[email protected] <x-msg://88/[email protected]> > > Subject: Re: [c-nsp] Weird 6PE problem on ASR1k > > Hi Sigurbjörn, > > Try configuring "set mpls-label" in the route-map. > > Regards > > Le 2010-10-07 à 06:30, Sigurbjörn Birkir Lárusson a écrit : > >> I'm having a weird issue with BGP peering in address-family ipv6 unicast >> from a ASR1002-F running 3.1.1S (15.0(1)S) to a 7200 running 12.2(33)SRD3 >> and another ASR1002-F running the same software, that I have setup in a lab. >> >> When a route-map (regardless of the contents, even route-map XXX permit 10 >> doesn't work) is applied on the outbound to the ipv6 neighbor of the ASR >> with 3.1.1S, it seems to stop sending labels for the IPv6 prefixes, the >> labels for show bgp ipv6 unicast labels show nolabel/nolabel for the routes >> in question and debugging ldp doesn't show the labels being sent. >> >> The result of this is that the route shows up on the 7200 in BGP for ipv6 >> unicast, but the next hop is inaccessible, and the route doesn't go into the >> ipv6 table obviously. >> >> As soon as I remove the outgoing route-map and soft reset the session on >> outbound, the next-hop is no longer inaccesible and the labels are there if >> I do a show bgp ipv6 unicast labels. >> >> If I re-apply the route-map and soft reset the session on outbound again, >> the BGP session sometimes (but not always) resets with the following error: >> >> *Oct 7 02:36:29.970: %BGP-3-NOTIFICATION: received from neighbor >> 192.168.1.3 3/10 (illegal network) 1 bytes 98 >> >> And when it comes back up, the labels have disappeared and the problem has >> resurfaced. Even if the session does not reset, and no error is shown, it >> the symptons are same, the labels are not sent. >> >> This seems to be an issue with the ASR not the 7200, the same symptom is >> seen on a ipv6 peering to another ASR1002-F when a outgoing route-map is >> applied to the bgp neighbor. >> >> Note that this only seems to affect IPv6 unicast, I'm also testing vpnv4 and >> vpnv6 (using 6VPE) all of which work without issues, with the same >> peer-policy inherited (and therefore the same route-maps). >> >> The first release that supports 6PE according to the release notes (unless I >> misunderstood them) is 3.1.0S so there is no going back to 2.X, I could try >> 3.1.0S instead of 3.1.1S but that seems somewhat counter productive. >> >> Anyone seen this before, or have any suggestion on how I could get around >> this? >> >> Kind regards, >> -- >> Sigurbjörn B. Lárusson >> >> >> >> _______________________________________________ >> cisco-nsp mailing list [email protected] >> <x-msg://88/[email protected]> >> https://puck.nether.net/mailman/listinfo/cisco-nsp >> archive at http://puck.nether.net/pipermail/cisco-nsp/ > > > Harold Ritter > Directeur Technique/Technical Leader > Advanced Services Central Engineering > CCIE 4168 (R&S, SP)[email protected] <x-msg://88/[email protected]> > <mailto:[email protected]> > Téléphone: 514 847 6856Les Systèmes Cisco > 1800 McGill College > Suite 700 > Montréal, Québec H3A 3J6 > Canada > > > > > Harold Ritter Directeur Technique/Technical Leader Advanced Services Central Engineering CCIE 4168 (R&S, SP)[email protected] <mailto:[email protected]> Téléphone: 514 847 6856Les Systèmes Cisco 1800 McGill College Suite 700 Montréal, Québec H3A 3J6 Canada _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
