nanog mailing list archives
Re: General Internet Instability
From: -Hammer- <bhmccie () gmail com>
Date: Mon, 07 Nov 2011 10:14:32 -0600
I'm struggling to do the same. All the various "Internet Health" sites show(ed) some upticks in negative performance but I don't have any specifics. We are a Gomez customer and Gomez is showing issues In St. Louis (SAVVIS) and Philly (L3) that specifically impacts the availability of our applications but it's not clear on the underlying reason. I'm giving cautious updates to management because even though it's obvious something is going on I don't have anything official except random email threads. Looking for more insight before misinforming management.
-Hammer- "I was a normal American nerd" -Jack Herer On 11/07/2011 10:09 AM, Todd Snyder wrote:
Can anyone point to any authoritative updates about this? On Mon, Nov 7, 2011 at 10:31 AM, Jared Mauch<jared () puck nether net> wrote: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 inEUabout 45 minutes ago, now we're seeing problems in NA. I'm focused onDNS,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
Current thread:
- Re: General Internet Instability, (continued)
- Re: General Internet Instability -Hammer- (Nov 07)
- real data [Re: General Internet Instability] Jared Mauch (Nov 07)
- Re: real data [Re: General Internet Instability] -Hammer- (Nov 07)
- Re: real data Robert Mathews (OSIA) (Nov 07)
- Re: General Internet Instability Jared Mauch (Nov 07)
- Re: General Internet Instability -Hammer- (Nov 07)
- RE: General Internet Instability Erik Bais (Nov 07)
- Re: General Internet Instability Todd Snyder (Nov 07)
- Re: General Internet Instability Leigh Porter (Nov 07)
- Re: General Internet Instability Jay Ashworth (Nov 07)
- Re: General Internet Instability -Hammer- (Nov 07)
- Re: TATA problems? Leigh Porter (Nov 07)
- Re: TATA problems? -Hammer- (Nov 07)