[27801] in North American Network Operators' Group
Re: Alternative to BGP-4 for multihoming?
daemon@ATHENA.MIT.EDU (Joe Loiacono)
Tue Mar 14 10:58:55 2000
Message-Id: <3.0.1.32.20000314110442.008c38a0@nastg.gsfc.nasa.gov>
Date: Tue, 14 Mar 2000 11:04:42 -0500
To: nanog@merit.edu
From: Joe Loiacono <jloiacon@nastg.gsfc.nasa.gov>
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Errors-To: owner-nanog-outgoing@merit.edu
>
>Checking the path to my DNS servers tells you NOTHING about the
>path to my hosts.
Right. But your situation is not the one being looked at, as you don't have
geograpically distributed web servers. I believe for that situation 3DNS,
et. al., can work. 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. Thus,
for example, clients in Asia can get to a server in Asia.
I think that's the gist of it, if not the specifics...
Joe
Joe Loiacono Phone: (301) 794-2509
Computer Sciences Corporation Fax: (301) 794-9480
