nanog mailing list archives

RE: WCCP talk..


From: "Christian Kuhtz" <ck () adsu bellsouth com>
Date: Wed, 11 Nov 1998 19:54:53 -0500

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Sorry, previous message accidentally went out unedited.  Blame it on
Microsleuth Lookout 98 and operator error.

i guess what we come down to is this: is it the router's
responsibility to
maintain state on devices around it, or of devices to inform the
router of
their state.  imho, its a moot point, but i dare say that it was
probably
easier for cisco to implement the former, as it would have involved
far
less lines coded in IOS than the latter solution.

WCCP maintains "shared state" between cache engines and routers. 
Unless all entities agree about the state of the world, WCCP is not
activated (or will shut itself down to prevent service disruption). 
It does have very distinct "fail-safe" mechanisms, and is very
suitable for maintaining consistent state in a one-to-many as well as
many-to-many caching setup because of it.  IMHO, that is.

Cheers,
Chris

- --
Christian Kuhtz <ck () adsu bellsouth com> -wk     ck () gnu org -hm
Sr. Network Architect, BellSouth Corp., Advanced Data Services
NOTE: "We speak PGP: key available at well-known key servers."
            "Turnaucka's Law: The attention span of a computer 
             is only as long as its electrical cord."  
                                         -- /usr/games/fortune



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