nanog mailing list archives
Re: Did your BGP crash today?
From: Christopher Morrow <morrowc.lists () gmail com>
Date: Fri, 27 Aug 2010 16:11:32 -0400
On Fri, Aug 27, 2010 at 4:07 PM, Mike Gatti <ekim.ittag () gmail com> wrote:
where's the change management process in all of this. basically now we are going to starting changing things that can potentially have an adverse affect on users without letting anyone know before hand .... Interesting concept.
you are running bgp, you are connected to the 'internet'... congrats you are part of the experiment. I suppose one view is that "at least it wasn't someone with ill intent, or a misconfigured mikrotek!" (you are asking your vendors to run full bit sweeps of each protocol in a regimented manner checking for all possible edge cases and properly handling them, right?) -chris
On Aug 27, 2010, at 3:33 PM, Dave Israel wrote: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=+=+=+=+=+=+=+=+=+=+=+=+= Mike Gatti ekim.ittag () gmail com =+=+=+=+=+=+=+=+=+=+=+=+=
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? Saku Ytti (Aug 28)
- Re: Did your BGP crash today? Leen Besselink (Aug 28)
- Re: Did your BGP crash today? Richard A Steenbergen (Aug 27)
- Re: Did your BGP crash today? Jared Mauch (Aug 27)