Hi, Took a while but here's the SMU to solve /32 routes pointing to null0 in CEF , available on CCO;
CSCua37747 Regards, Fredrik Vöcks Senior IP Network Engineer On 23 July 2012 20:50, Aaron <[email protected]> wrote: > Thanks a bunch Fredrik. Did TAC tell you this is being worked and filed > as a bug? If so, what is the bug CSC number?**** > > ** ** > > Aaron**** > > ** ** > > *From:* Fredrik Vöcks [mailto:[email protected]] > *Sent:* Monday, July 23, 2012 12:09 PM > *To:* Aaron > *Cc:* [email protected] > > *Subject:* Re: [c-nsp] vpnv4 nlri in bgp but not marked as > best in > order to get into rib**** > > ** ** > > Yes we have a TAC on this. This is on ASR 9010, IOS XR 4.2.1.**** > > ** ** > > Don't upgrade is my opinion. I can keep you posted when SMU is out.**** > > > **** > > Fredrik Vöcks**** > > Senior IP Network Engineer**** > > **** > > ** ** > > > > **** > > On 23 July 2012 18:57, Aaron <[email protected]> wrote:**** > > Mine is Asr9000 – 4.1.2**** > > **** > > You said “Bgp inserts /32’s pointing to null0 for unknown reasons!!! ??? > What platform are you seeing this on Fredrik?**** > > **** > > Do you have a tac case working on that ? did cisco tell you about a bug > id with that ? is there an smu that solves it ?**** > > **** > > I was gonna upgrade to 4.2.1 one of these days but that scares me.**** > > **** > > Aaron**** > > **** > > **** > > **** > > *From:* Fredrik Vöcks [mailto:[email protected]] > *Sent:* Monday, July 23, 2012 11:46 AM > *To:* Aaron > *Subject:* Re: [c-nsp] vpnv4 nlri in bgp but not marked as > best in > order to get into rib**** > > **** > > Hi,**** > > **** > > What platform are you talking about? **** > > **** > > We have some nasty BGP bugs in IOS XR 4.2.1. Our problem is that 4.2.1 > inserts /32 routes pointing to null0 for unknown reasons.**** > > **** > > Fredrik Vöcks**** > > Senior IP Network Engineer**** > > **** > > **** > > ** ** > > On 23 July 2012 15:37, Aaron <[email protected]> wrote:**** > > Have y'all ever seen this ? > > > > I was learning vpnv4 prefixes from pe far away in my local bgp table, but > strangely none were marked > best. Sh route vrf one 1.2.3.0 showed routed > to null0 for a /18 that I have as a static in order to advertise larger > cidr > to my isp. So as packets came from internet they were sent to bit bucket > for 1.2.3.0/24 and customer was having no connectivity. > > > > I simply removed import from vrf one and readded it and BAM, bgp marked as > best and installed into rib and customer could surf. > > > > Aaron > > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/**** > > **** > > ** ** > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
