Hello, odd. There was a restriction for BGP requesting BFD on Vlan on a _Bundle_. Normal interfaces should work though.
Sorry, no further idea ... . Regards, Marc On 2011-02-01, at 3:08 PM, chams wrote: > Hi, > it's a TengigaEthernet interface, but i'm using sub interfaces. > And, right, the bgp is UP. > > > > > > ----- Message d'origine ---- > De : Marc Binderberger <[email protected]> > À : chams <[email protected]> > Cc : Gert Doering <[email protected]>; [email protected] > Envoyé le : Mar 1 février 2011, 14h 58min 12s > Objet : Re: [c-nsp] Re : BFD on ASR 9000 > > Hello Chams, > >> My firewall is using bfd and when typing "show bfd session" on it, it shows >> me > >> down sessions > > problem #2 solved :-) > > >> and here is the "show bfd client", (i'm using bfd for my ISIS configuration) >> >> Name Node Num sessions >> --------------- ---------- -------------- >> MPLS-TE 0/RSP0/CPU 3 >> bgp-0 0/RSP0/CPU 0 >> bgp-0 0/RSP1/CPU 0 >> ipv4_static 0/RSP0/CPU 0 >> ipv4_static 0/RSP1/CPU 0 >> isis-IGP-MPLS 0/RSP0/CPU 3 >> isis-IGP-MPLS 0/RSP1/CPU 0 >> pim 0/RSP0/CPU 3 >> pim 0/RSP1/CPU 0 >> rsvp 0/RSP0/CPU 0 >> rsvp 0/RSP1/CPU 0 > > > So BGP is not telling BFD anything about the session it wants - "0". > Thus "show bfd session" shows nothing about it. > > Odd. The eBGP session between ASR and FW is UP, right? What kind of > interface it this? I would guess (gig-)Ethernet but better ask. Vlans in > the game? > > > Regards, Marc > >> ----- Message d'origine ---- >> De : Marc Binderberger <[email protected]> >> À : Gert Doering <[email protected]> >> Cc : chams <[email protected]>; [email protected] >> Envoyé le : Mar 1 février 2011, 13h 42min 16s >> Objet : Re: [c-nsp] BFD on ASR 9000 >> >> >> Hello Gerd and Chams, >> >>> My guess is that your unnamed firewall doesn't do BFD... >> >> that is problem #2 ;-) - but it still should show up with "show bfd session" >> on the ASR9k as a DOWN session. >> >> The eBGP session must be non-multihop, i.e. it must be between the >> addresses of the link ASR9k--FW. I assume this is what you mean >> with point-to-point? >> >> BFD really doesn't know anything about "i" or "e"-BGP. All it requires >> is a "bfd fast-detect" line under the BGP neighbor. >> >> What is "show bfd client" showing? >> >> >> Regards, Marc >> >> >> >>> On Tue, Feb 01, 2011 at 10:31:10AM +0000, chams wrote: >>>> I have to configure a bfd session between my ASR and a Firewall, over a >>>> BGP >> >>>> session. >>>> but after configuration i ca't even see the configured session when doing >>>> a >> >>>> "show bfd session". >>>> by reading some cisco docs, i've seen that BFD can be configured onlu on > >>> point >>> >>>> to point eBGP session, my ASR and Firewall have an eBGP point to point >>> session >>> >>>> but they belong to the same confederation (perhaps BFD see it as iBGP >>> session) >>> >>> My guess is that your unnamed firewall doesn't do BFD... >>> >>> gert >>> -- >>> USENET is *not* the non-clickable part of WWW! >>> >> //www.muc.de/~gert/ >>> Gert Doering - Munich, Germany > [email protected] >>> fax: +49-89-35655025 >> [email protected] >> >> >> >>> _______________________________________________ >>> cisco-nsp mailing list [email protected] >>> https://puck.nether.net/mailman/listinfo/cisco-nsp >>> archive at http://puck.nether.net/pipermail/cisco-nsp/ >> >> -- >> Marc Binderberger <[email protected]> Powered by *BSD ;-) >> >> >> >> >> >> _______________________________________________ >> cisco-nsp mailing list [email protected] >> https://puck.nether.net/mailman/listinfo/cisco-nsp >> archive at http://puck.nether.net/pipermail/cisco-nsp/ > > -- > Marc Binderberger <[email protected]> Powered by *BSD ;-) > > > > > -- Marc Binderberger <[email protected]> _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
