On Tue, Apr 03, 2018 at 10:52:14PM +0200, Guillaume LUCAS wrote: > Hellow, > > On my BIRD router, I have two IPv4 BGP upstream neighbors. From them, my > router receive 678,000 and 681,000 routes. On these BGP sessions, I have > configured "receive limit 700000 action block". > > On this same router, I have one IPv4 BGP downstream neighbor. On this > one, I have configured "export where proto = "static_allocations" || > proto = "bgp_upstream1" || proto = "bgp_upstream2";" and "export limit > 700000 action disable". "static_allocations" always contains only one route. > > BIRD frequently disables downstream neighbor's BGP session because the > export limit has been exceeded. I can understand this behaviour: > upstream1 may distribute routes that upstream2 does not have, but I see > the same behavior with "export limit 750000 action disable". However, my > upstreams do not provide me more than 50,000 different routes: > > # birdc sh route protocol bgp_upstream1 | grep -Po "[0-9./]+(?=[ > ]+via)" | sort -n > bgp_upstream1 > # birdc sh route protocol bgp_upstream2 | grep -Po "[0-9./]+(?=[ > ]+via)" | sort -n > bgp_upstream2 > # diff -b -w -y --suppress-common-lines bgp_upstream1 bgp_upstream2 | > wc -l > 3503 > > How is it possible to export more routes than I receive?
Hi What do you see in 'show protocols all' in import/export statistics? Do they make sense? -- Elen sila lumenn' omentielvo Ondrej 'Santiago' Zajicek (email: santi...@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."
