[21364] in North American Network Operators' Group
RE: WCCP talk..
daemon@ATHENA.MIT.EDU (Christian Kuhtz)
Thu Nov 12 14:55:07 1998
From: "Christian Kuhtz" <ck@adsu.bellsouth.com>
To: "Deepak Jain" <deepak@ai.net>, "lincoln dale" <ltd@interlink.com.au>
Cc: <alex@nac.net>, <nanog@merit.edu>
Date: Wed, 11 Nov 1998 19:44:42 -0500
In-Reply-To: <Pine.BSF.3.91.981110220325.26845D-100000@aries.ai.net>
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> I am sure someone could make the argument that if the cache were
designed
> suitably, it wouldn't need to send out packets because it wouldn't
die in
> the first place. Or further, wouldn't need load balancing from a
switch
> because it would have a suitable mechanism of capacity planning the
> traffic itself.
Can you let us know when you found nirvana?
> I can think of an example where the disk might partially fail and
WCCP
> packets would still be sent out.
If the disk partially fails, operation of a cache engine would be
interrupted. This should result in the router excluding this
particular cache engine from WCCP as a fail-safe mode. If not, the
software needs a simple sanity check to shut itself down (forcing WCCP
into a "standby mode" for this cache engine entity to allow for a
"limp home" mode). This has nothing to do with WCCP itself.
> But of course, no one implements technology today before its been
> thoroughly matured with a million years of uptime.
Of course.
Cheers,
Chris
- --
Christian Kuhtz <ck@adsu.bellsouth.com> -wk ck@gnu.org -hm
Sr. Network Architect, BellSouth Corp., Advanced Data Services
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