Couldn't you also advertise both blocks to both ISP then simply prepend or add community attributes to prefer one over the other with each provider. BTW, us providers I know or worked for will advertise blocks that are given to you so long as you have the provider that own the blocks to SWIP them with ARIN. Regards Mohamed On Wed, 1 Nov 2000, rick wrote:
have you considered getting 2 ranges (1 from each provider) and then getting agreements from each where they cross advertise your allocated ranges out,
e.g.
ISP 1 advertises its own /19 + /23 allocated to you from ISP2 ISP 2 advertises its own /19 + /23 allocated to you from ISP1
Some ISP's will not do this but I do know some of the big boys in the UK will do it and the US is where we first saw this idea in us.
Then load each server across an address out of each range
This then gives you full redundancy of running BGP without the expense or without requiring the in house expertise
Thanks
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-----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of Brantley Jones Sent: 01 November 2000 16:50 To: Mike Johnson Cc: nanog@merit.edu Subject: Re: RADWare Linkproof? (or better ways to multihome)
At 11:38 AM 11/1/2000 -0500, you wrote:
Mohamed Hirse [madlion@justin.net] wrote:
Mike, If the purpose of using BGP is to server load balance, there are other products that work as well if not better. Take a look at F5, Alteon and Arrowpoint. BGP will be a good method to load share traffic between multiple different providers
I might not have made myself clear. We will be buying ISP services ('net connections) from two different providers.
We are looking at other products for server load balancing. I've kinda narrowed it down to Alteon, RADWare, and Foundry. But that's for server load balancing, not for load balancing between providers.
Thanks, Mike -- Mike Johnson Network Engineer / iSun Networks, Inc. Morrisville, NC All opinions are mine, not those of my employer
Mike,
I know exactly what you're talking about. How much does the Linkproof cost? It could come down to a cost issue. Looking at the Linkproof documentation, it looks like you MAY still need a router. It sounds like the Linkproof is just a smart NAT box with some QOS features. Are you going to be advertising your IP block to both providers? If one goes down, will you still be routable globally? If not, how could the Linkproof possibly handle that?
Brantley