Merit Network
Can't find what you're looking for? Search the Mail Archives.
  About Merit   Services   Network   Resources & Support   Network Research   News   Events   Home

Discussion Communities: Merit Network Email List Archives

North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: Do ATM-based Exchange Points make sense anymore?

  • From: cowie
  • Date: Sat Aug 10 08:56:43 2002


Mike Hughes wrote:
> With the shorter timers or fast-external-fallover, a very short
> maintenance slot at a large exchange can cause ripples in the routing
> table. It would be interesting to do some analysis of this - how far the
> ripples spread from each exchange!

We do BGP instability research, and this is something I'd like to 
examine further.  Compared to other sources of BGP noise, I don't 
think it's a primary driver for the instability we monitor each 
day, but I'd like to quantify it.  

If people were willing to give us a heads-up after the fact when 
there were  .. um .. maintenance events at the major exchanges, 
we could then go back and look at global propagation of the ripples 
on fine timescales.  --jim

p.s. The more eyes we have, the more we see, and we are always looking 
for more silent peers, especially small and midsize providers or their
multihomed customers.  See http://renesys.com/cgi-bin/bgpfeed to 
sign up to send us a one-way multihop EBGP feed.  It's quick, painless, 
and you will be helping unravel the mysteries of why global routing works 
so well in spite of us all. 





Discussion Communities


About Merit | Services | Network | Resources & Support | Network Research
News | Events | Contact | Site Map | Merit Network Home


Merit Network, Inc.