Re: Best practice for redundancy when there're more than 2x ISP

John,

Both ISPs are Tier1, and send us Regional as well as International
prefixes. We obviously prefer a regional route from one ISP than the
same route but marked with an International community from other ISP
and vice vesa. This can be done with local preference. What do you do
with a route that is marked the same (regional or intl) from both ISP?

For simplicity sake, let consider all routes as international (which
account for 80-90% of internet in our case). How you can load share
outgoing traffic, yet, meet original design requirements.

On Friday, September 24, 2010, Edward John
<edwardjohn2020_at_googlemail.com> wrote:
> Well, This is moreover depends on how your peering and how ir your ISP's tier level. In your case, I would suggest to import communities from your ISPs, choose regional base routes and give preference accordingly..
> I assume your ISPs support communities..
> Regards,John
>
>

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