On Nov 7, 2011, at 10:08 AM, Tom Hill wrote: > On Mon, 2011-11-07 at 10:00 -0500, Todd Snyder wrote: >> We seem to be having some problems with our tata links - first seen in EU >> about 45 minutes ago, now we're seeing problems in NA. I'm focused on DNS, >> so I'm seeing a lot of timeouts/servfails, but our networking folks are >> talking about links dropping. >> >> Anyone else seeing oddness on the NA Internet right now? >> >> http://downrightnow.com/ confirms - something is up. > > There are widespread issues across the Internet; certain versions of > Juniper firmware have core dumped after seeing a particular BGP 'UPDATE' > message. > > (That's the running theory at least). > > It's affected multiple service providers, globally, not just those > connected to TATA.
Pretty much any major BGP event will impact multiple providers. A threshold you should use to view the general instability (which I find valuable, you may as well) is route views data. If you look at the BGP UPDATES archive sizes, you can see when something happens, e.g.: http://archive.routeviews.org/bgpdata/2011.11/UPDATES/ Take a look at the size of the updates.20111107.1400.bz2 file and the 1415 file. They are abnormally large compared to a normal period of time. This shows there were a lot of updates out there being processed and a reference to levels of instability. If you are not feeding route views or similar community projects, please consider doing so. It helps paint the view for those doing analysis. - Jared
