North American Network Operators Group

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Re: more-specifics via IX

  • From: Che-Hoo CHENG
  • Date: Mon Oct 15 09:28:48 2007
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The problem is you're announcing the aggregate prefixes of your customer's customers to your upstream providers and the traffic from your upstreams to those networks will be routed through the IX (instead of your customer connection) because of the longer prefix effect and so you're not charging the traffic and you're losing revenue!!!
I think in this case, you have to filter all those prefixes learnt from the IX.


On 10/15/07, Wolfgang Tremmel <[email protected]> wrote:

Am 15.10.2007 um 07:09 schrieb Bradley Urberg Carlson:

I have a few customers' customers, who appear at a local IX.  Due to the MLPA-like nature of the IX, I hear their prefixes both at the IX and via my own transit customers.  I normally use localpref to prefer customer advertisements over peers' advertisements.

There is a customer's customer who is advertising more-specifics at the IX (and using a different source AS, to boot).  I can think of a couple ways to prevent hearing these, but thought I should ask for suggestions first.


you should honor your customers routing policy and simply accept the routes.


Wolfgang Tremmel                     e-mail: [email protected]
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