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