[quagga-users 14563] Re: iBGP not propagating v6 route problem (again)

On Mon, Dec 19, 2016 at 10:04:30AM +0000, Paul Thornton wrote:
> The reason I think this may be slightly different to the problems some of us
> are reporting is that in the past, 'show ip bgp neigh x advertised-routes'
> claimed that the router was advertising them - in this case, it doesn't (but
> 'show ip bgp x' does claim it is):

Actually, not different for me.  Here's a bug I opened awhile back:

https://bugzilla.quagga.net/show_bug.cgi?id=870

(just started commenting on it again the other day)

"show ip bgp nei x advertised-routes" does not show the advertisement
for me, either.

> suitcase.as8676.net# show ipv6 bgp sum
> BGP router identifier 217.65.163.126, local AS number 8676
> RIB entries 65667, using 7182 KiB of memory
> Peers 8, using 71 KiB of memory
> 
> Neighbor        V         AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down
> State/PfxRcd
> 2001:1420::7e   4  8676   15681       5        0    0    1 00:02:46    34382
> 2001:1420::7f   4  8676   15680       5        0    0    1 00:02:49    34380
> 2001:1420:16:3::1
>                 4 48152      12   15654        0    0   10 00:02:34        1
> 2001:1420:16:4::1
>                 4 48152       0       0        0    0    0 never    Idle
> (Admin)
> 
> Total number of neighbors 4

As was pointed out in a comment for bug #870, check out the OutQ there.
It's !0, which might be related.  bgpd thinks its advertising the
prefixes, but it isn't.

Also, check "show ip bgp nexthop detail" on that box and see if the
expected nexthop / outgoing interface is listed.  For me, it's not.

- Mark

-- 
Mark Kamichoff
prox-1QuQYt+lk/[email protected]
http://www.prolixium.com/