nanog mailing list archives

Re: Alternative to BGP-4 for multihoming?


From: Randy Bush <randy () psg com>
Date: Tue, 14 Mar 2000 08:16:13 -0800


Once the client's DNS request has worked its way over to the primary DNS
for the distributed web-servers, 3DNS has each of the other 3DNS boxes
(located adjacent to the other distributed servers) ping the *clients*
primary DNS. 3DNS then returns the URL for the web-server whose 3DNS
machine is 'closest' (fewest hops) to the clients DNS machine.

you may want to seriously reread the previous sender's message.  the point
is that in the modern post-2182 world, many of the client's nameservers are
vastly net.distant from the client.

    psg.com nameserver = DNS.LIBRARY.UCLA.EDU
    psg.com nameserver = RAIN.PSG.COM
    psg.com nameserver = ARIZONA.EDU

it is best common practice.

randy



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