From: Jim Devane (jim@powerpulse.cc)
Date: Sat Jul 16 2005 - 15:21:31 GMT-3
Hmmm, prepending is pretty common. Check for yourself... www.traceroute.org
, go to route servers, go to Oregon-ix and scroll down a couple pages...
Wallah! ( Am. Version of Voila ) Prepends.
A couple other common methods of engineering inbound traffic is to send
communities to raise or lower LOC_PREF in the upstream table. Depending of
course on which you want to traffic to come in on (lower to slow traffic,
higher to encourage )
To send "no-export" to an upstream so they do not advert the route to others
( thereby limiting the amount of traffic coming in)
MEDs are not as commonly used ( IMHO )
.02
jim
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
cciein2006@yahoo.com
Sent: Saturday, July 16, 2005 9:04 AM
To: ccielab@groupstudy.com
Subject: Influencing Inbound Traffic in the Real World
Hello All,
I just had a discussion with my friend regarding multihomed internet
connections and BGP.
He said that most of the techniques used for influencing inbound traffic
from multiple ISP's do not work in the real world. As an example he said
that most ISP's don't accept as-path prepended routes and MED metrics are
not passed between AS's (or are they passed but not compared by default?).
Is this true?
I wanted to know what has been people's experiences working with these
scenarios in the real world and what techniques actually do work regarding
influencing inbound internet traffic.
TIA!
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