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
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
I don't think that the providers need to be that much in cooperation as probider B only needs to announce a /19 and statically point it at provider A's router. I didn't want to do NAT as many customers don't like/want it. If offered NAT they will go elsewhere! Many thanks for your input Matthew ----- Original Message ----- From: "Corneliu Tanasa" <ctanasa@i-net.ro> To: "Matthew Robinson" <matthew@crescent.org.uk> Cc: <routing-wg@ripe.net> Sent: Thursday, October 19, 2000 2:10 PM Subject: Re: Multihoming without AS
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
participants (2)
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Corneliu Tanasa -
Matthew Robinson