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Re: /24s run amuck
- From: Steve Francis
- Date: Tue Jan 13 16:02:23 2004
Patrick W.Gilmore wrote:
On Jan 13, 2004, at 2:19 PM, Steve Francis wrote:
I'll take some education - given two POP's, different upstream ISPs
at each POP, and a desire to have traffic for specific networks (/24)
enter a specific POP, can that be done without de-aggregation?
We are not doing this ourselves - we're not yet big enough to have
our own aggregate blocks, but if we did, we could not just announce a
/20 at each POP, and transit the traffic back to the appropriate
datacenter ourselves. We're an ASP, and do not have real links
between POP's, only VPN's.
If we used consistent upstreams at each POP, we could do it by
announcing specific /24's with no-export communities, but a
consistent set of ISPs are not available at each of the colo's we are
Is there some other trick I'm missing?
If you can't take the traffic from Site A to Site B, why are you
announcing the /24s to the world? Why not just use a /24 from the
upstream in each location and not force everyone else on the Internet
to see your /24 which only has one path?
It doesn't have just one path. Multiple (different) ISPs at each location.