nanog mailing list archives
Re: Did your BGP crash today?
From: Dave Israel <davei () otd com>
Date: Fri, 27 Aug 2010 15:33:38 -0400
On 8/27/2010 3:22 PM, Jared Mauch wrote:
When you are processing something, it's sometimes hard to tell if something just was mis-parsed (as I think the case is here with the "missing-2-bytes") vs just getting garbage. Perhaps there should be some way to "re-sync" when you are having this problem, or a parallel "keepalive" path similar to MACA/MCAS/MIDCAS/TCAS between the devices to talk when something bad is happening.
I know it wasn't there originally, and isn't mandatory now, but there is an MD5 hash that can be added to the packet. If the TCP hash checks out, then you know the packet wasn't garbled, and just contained information you didn't grok. That seems like enough evidence to be able to shrug and toss the packet without dropping the session. -Dave
Current thread:
- Did your BGP crash today? Kasper Adel (Aug 27)
- Re: Did your BGP crash today? Jared Mauch (Aug 27)
- Re: Did your BGP crash today? Richard A Steenbergen (Aug 27)
- Re: Did your BGP crash today? Jeroen Massar (Aug 27)
- Re: Did your BGP crash today? Jared Mauch (Aug 27)
- Re: Did your BGP crash today? Dave Israel (Aug 27)
- Re: Did your BGP crash today? Mike Gatti (Aug 27)
- Re: Did your BGP crash today? Christopher Morrow (Aug 27)
- Re: Did your BGP crash today? bmanning (Aug 27)
- Re: Did your BGP crash today? Warren Kumari (Aug 27)
- Re: Did your BGP crash today? Thomas Mangin (Aug 28)
- Re: Did your BGP crash today? Randy Bush (Aug 28)
- Re: Did your BGP crash today? Thomas Mangin (Aug 28)
- Re: Did your BGP crash today? Randy Bush (Aug 28)
- Re: Did your BGP crash today? Saku Ytti (Aug 28)
- Re: Did your BGP crash today? Randy Bush (Aug 28)
- Re: Did your BGP crash today? Richard A Steenbergen (Aug 27)
- Re: Did your BGP crash today? Jared Mauch (Aug 27)