nanog mailing list archives
Re: Persistent BGP peer flapping - do you care?
From: "Jake Khuon" <khuon () NEEBU Net>
Date: Thu, 17 Jan 2002 14:21:59 -0800
### On Thu, 17 Jan 2002 17:00:06 -0500, "Christopher A. Woodfield" ### <rekoil () semihuman com> casually decided to expound upon Susan Hares ### <skh () nexthop com> the following thoughts about "Re: Persistent BGP peer ### flapping - do you care?": CAW> I agree with your holddown timer proposal in cases of the peer being dropped due to CAW> errors, as the resultant loops can result in extreme prefix dampening. But my CAW> assertation is that BGP peering sessions should be a bit more robust and not drop CAW> everything at the first sign of trouble. Well, as I recall, the original intent to drop the entire session and thereby flush that peer from the table is because an invalid advertisement may be symptomatic of a larger scale table corruption on the part of the peer thus all advertisements should be invalidated. Dropping the peer and thereby initiating a coldstart/reset was the conservative solution. I think some form of peer damping with an exponential decay timer much like route flap damping would be a good thing. Simply reject the OPEN until the decay timer has expired. As for propogation of the bad prefix... well that soapbox has worn paint on top. If people aren't going to bother following specs in the first place I'm not sure a new spec will solve anything. -- /*===================[ Jake Khuon <khuon () NEEBU Net> ]======================+ | Packet Plumber, Network Engineers /| / [~ [~ |) | | --------------- | | for Effective Bandwidth Utilisation / |/ [_ [_ |) |_| N E T W O R K S | +=========================================================================*/
Current thread:
- Persistent BGP peer flapping - do you care? Susan Hares (Jan 17)
- Re: Persistent BGP peer flapping - do you care? Christopher A. Woodfield (Jan 17)
- Re: Persistent BGP peer flapping - do you care? Clayton Fiske (Jan 17)
- Re: Persistent BGP peer flapping - do you care? Susan Hares (Jan 17)
- Re: Persistent BGP peer flapping - do you care? Christopher A. Woodfield (Jan 17)
- Re: Persistent BGP peer flapping - do you care? Jake Khuon (Jan 17)
- Re: Persistent BGP peer flapping - do you care? Dave Israel (Jan 17)
- Re: Persistent BGP peer flapping - do you care? Vijay Gill (Jan 17)
- Re: Persistent BGP peer flapping - do you care? Dave Israel (Jan 17)
- Re: Persistent BGP peer flapping - do you care? Joel Baker (Jan 20)
- Re: Persistent BGP peer flapping - do you care? Susan Hares (Jan 17)
- Message not available
- Re: Persistent BGP peer flapping - do you care? Susan Hares (Jan 18)
- Re: Persistent BGP peer flapping - do you care? Jake Khuon (Jan 18)
- Re: Persistent BGP peer flapping - do you care? Christopher A. Woodfield (Jan 19)
- Re: Persistent BGP peer flapping - do you care? Christopher A. Woodfield (Jan 17)
- recommendation for open source based Arman (Jan 18)
- RE: recommendation for open source based Christopher J. Wolff (Jan 18)