nanog mailing list archives
RE: Extreme congestion (was Re: inter-domain link recovery)
From: Mikael Abrahamsson <swmike () swm pp se>
Date: Thu, 16 Aug 2007 18:29:19 +0200 (CEST)
On Thu, 16 Aug 2007, michael.dillon () bt com wrote:
How many people have noticed that when you replace a circuit with a higher capacity one, the traffic on the new circuit is suddenly greater than 100% of the old one. Obviously this doesn't happen all the time, such as when you have a 40% threshold for initiating a circuit upgrade, but if you do your upgrades when they are 80% or 90% full, this does happen.
I'd say this might happen on links connected to devices with small buffers such as with a 7600 with lan cards, foundry device or alike. If you look at the same behaviour of a deep packet buffer device such as juniper or cisco GSR/CRS-1 the behaviour you're describing doesn't exist (at least not that I have noticed).
-- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- Re: Extreme congestion (was Re: inter-domain link recovery), (continued)
- Re: Extreme congestion (was Re: inter-domain link recovery) Alexander Harrowell (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Randy Bush (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Sean Donelan (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Sean Donelan (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Randy Bush (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Fred Baker (Aug 16)
- RE: Extreme congestion (was Re: inter-domain link recovery) michael.dillon (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Hex Star (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Stephen Wilcox (Aug 17)
- Re: Extreme congestion (was Re: inter-domain link recovery) Patrick W. Gilmore (Aug 17)
- RE: Extreme congestion (was Re: inter-domain link recovery) Mikael Abrahamsson (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Deepak Jain (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Mikael Abrahamsson (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Fred Baker (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Mikael Abrahamsson (Aug 16)
- Re: Extreme congestion (was Re: inter-domain link recovery) Perry Lorier (Aug 18)
- Re: Extreme congestion (was Re: inter-domain link recovery) Mikael Abrahamsson (Aug 19)
- Re: Extreme congestion (was Re: inter-domain link recovery) Alexander Harrowell (Aug 21)
- Re: Extreme congestion (was Re: inter-domain link recovery) Mikael Abrahamsson (Aug 21)
- Re: Extreme congestion (was Re: inter-domain link recovery) Joe Provo (Aug 19)
- RE: Extreme congestion (was Re: inter-domain link recovery) michael.dillon (Aug 16)