Re: Cache-as-cache-can

[Eric Dean <edean () gip net>]

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