On Fri, Apr 26, 2013 at 05:12:47PM +0400, Slawa Olhovchenkov wrote: > bird router got from BGP peer update don't change routing table: ... > and send unneeded routing update to kernel (old route is same): ... > >From this BGP peer similar updates got very frequence (50 per second and > >higher). > How to prevent unneeded routing update to kernel?
Hello If the received route update is exactly the same, then it should be ignored and not propagated further, but there is probably some minor change (like in BGP attributes) that forces the propagation. BIRD currently does not support anything that could prevent propagation of frequent updates. For the kernel protocol it could be hacked by removing the code that handles route updates and depending just on periodic routing table scans for BIRD-kernel routing table synchronization. -- Elen sila lumenn' omentielvo Ondrej 'SanTiago' Zajicek (email: [email protected]) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."
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