Hi Matthew, I have a working scenario, which is slightly different than yours by the fact that the customer have a /28 (or /27) from each A and B providers. The customer is running NAT and also is balancing the traffic on both links (policy routing) with floating default route to assure full backup of the links. Having chunks of /24 allocated to each customer, then there is no issue with the bunch of /24 announced, because each provider (ISP) will continue to advertise his /19 or whatever. Also, in your scenario, there is the assumption that provider A and B are not competitors and they'll work together on behalf of the community :-) Kind regards, Corneliu Tanasa Matthew Robinson wrote:
As promised.
http://uk.geocities.com/maff2k/multi.doc
Apologies for the microsoft format! I'm putting the html bit together at the moment.
Please note this is 'work in progress' there is a better than slim chance that I've missed something fundamental which would mean that this won't work. Constructive critisism only please!
Kind regards
Matthew