From: Larry Roberts (groupstudy@american-hero.com)
Date: Sat Jul 16 2005 - 23:53:32 GMT-3
I'm using AS-Path prepending sucessfully with 3 different carriers.
some may require to you notify them that your pre-pending if they have
tight filters in place, or they may require that you set some specific
community, but I don't know of any that flat our refuse, at least in the US.
Jim Devane wrote:
> 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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