Sent from a mobile device On 19/07/2012, at 17:04, "Elmar K. Bins" <e...@4ever.de> wrote:
> and...@2sheds.de (Andrew Miehs) wrote: > >>> >> What is this "scrubbing" that you are referring to? > > My guess is: Blackholing unwanted traffic on the transit side. > > In that case there's a good chance of traffic towards the deaggregated > /24 coming in via one of the other ISPs. > > In order to make sure that traffic for the /24 only reaches you through > ISP1, you would have to advertise that /24 to ISP1 and all other /24s > in a somehow deaggregated sense (more likely /20+/21+/22+/23+/24) to > the other ISPs. Why that? You announce a /24 to isp3 and they announce it to the world including isp1 and isp2. All traffic, even inside isp1 would match the path via isp3. Andrew _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
