nanog mailing list archives
Re: withdrawal propagation (was E.E. Times?)
From: "John W. Stewart III" <jstewart () metro isi edu>
Date: Tue, 14 Jan 1997 14:34:19 EST
excessive rates of bona fide routing updates *can* be a problem. it's called route flap. and we've got route flap dampening to reduce the scope of such events what we've been talking about very recently on this list is the high rate of withdrawls that have been seen. specifically, e.g., withdrawls from RouterA to RouterB for networks that RouterA never announced to RouterB. this is not a route flap .. it is just a superfluous withdrawl and causes no operational problems. however, some folks were tracking the number of withdrawls and didn't like the large number, so the vendor was informed and the code was changed. it's a good and appropriate thing that the behavior was changed, but that doesn't mean that it was a bug and doesn't mean that it was causing any problems /jws
0) Is this a bug, does it cause any problem whatsoever?If I'm not mistaken, lots of routers have had performance problems caused by excessive rates of routing updates. Or did I misread various previous messages to this list?I've looked at the Cisco page, and a search on "BGP, withdrawals" does not find any mention of the bug fix release. So, I have some pointed
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Current thread:
- withdrawal propagation (was E.E. Times?) William Allen Simpson (Jan 13)
- Re: withdrawal propagation (was E.E. Times?) Randy Bush (Jan 13)
- <Possible follow-ups>
- Re: withdrawal propagation (was E.E. Times?) William Allen Simpson (Jan 13)
- Re: withdrawal propagation (was E.E. Times?) John W. Stewart III (Jan 13)
- Re: withdrawal propagation (was E.E. Times?) Dorian R. Kim (Jan 13)
- Re: withdrawal propagation (was E.E. Times?) Jeff Young (Jan 14)
- Re: withdrawal propagation (was E.E. Times?) Jon Zeeff (Jan 14)
- Re: withdrawal propagation (was E.E. Times?) John W. Stewart III (Jan 14)
- Re: withdrawal propagation (was E.E. Times?) Hank Nussbacher (Jan 14)
- Re: withdrawal propagation (was E.E. Times?) Tony Li (Jan 15)
- Re: withdrawal propagation (was E.E. Times?) Dorian R. Kim (Jan 14)
- Re: withdrawal propagation (was E.E. Times?) Neil J. McRae (Jan 15)
- Re: withdrawal propagation (was E.E. Times?) Neil J. McRae (Jan 15)
- Re: withdrawal propagation (was E.E. Times?) John W. Stewart III (Jan 15)