Re: General Internet Instability

[-Hammer- <bhmccie () gmail com>]

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 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
> >
> >