[21622] in North American Network Operators' Group
Re: Cache-as-cache-can
daemon@ATHENA.MIT.EDU (Eric Dean)
Tue Nov 17 14:05:11 1998
Date: Tue, 17 Nov 1998 12:25:26 -0500 (EST)
From: Eric Dean <edean@gip.net>
To: steven hessing <stevenh@inet.unisource.nl>
cc: Katsuhiro Kondou <kondou@nec.co.jp>, nanog@merit.edu
In-Reply-To: <199811171200.NAA15137@inet.unisource.nl>
The fourth solution is licensing WCCP
http://www.cisco.com/warp/publlic/146/november98/17.html
On Tue, 17 Nov 1998, steven hessing wrote:
> There seem to be three solutions for transparent web-caching:
> 1 a web-cache between two routers, all traffic is routed through it.
> 2 a l4 switch between two routers, all traffic is routed through it.
> The l4 switch redirects web-requests to a www-cache.
> 3 a web-cache connected to a router which uses policy routing to
> direct web-requests to it.
>
> 1 is extremely ugly and impossible at high traffic levels
> 2 is an extra device in your network which needs to be managed
> and is often difficult to implement in a WAN environment (our
> core routers don't have (fast-)ethernet interfaces.)
> 3 is the preferred solution but you need to run 11.3 or 12.0 for
> it. These software versions support fast-switched policy routing.
> Most ISPs currently rely on 11.1CC features and thus can not upgrade
> to 11.3. The wait is thus for a stable release of 12.0.
>
> -- Steven
>
> In your mail from 17-11-1998 you write:
> > In article <19981117091400.D9778@skriver.dk>,
> > Jesper Skriver <jesper@skriver.dk> wrote;
> >
> > } Why use things like this, use a default route to a HSRP address ...
> >
> > That could be. But they (appliance venders) haven't shown
> > it at this point, afaik. They simply shows a veiw of cache
> > appliance and l4 switch sitting between 2 routers. Why?
> > --
> > Katsuhiro Kondou
>
