David Robb wrote:
> On Wed, 9 Mar 2005, Nathan Ward wrote:
>
>> IMO, using cache's in fully transparent mode is a rather broken thing
>> to do, unless you cache on your entire border..
>
> Ever tried to architect a network to do that? :)
> We tried. It's easier to deal with the occasional network that breaks.
Really? I imagine that there would be lots of breakage in this area,
especially during failures (your's, or other's) or routing that lacks clue.
When you are caching fully transparently, do the Foundry's only send the
HTTP return packets to the caches if they are part of a cached session?
That would limit some problems, but obviously not all, and wouldn't fix
this one.
How do you detect that there is a problem network? That relies on
customers, right? Do they really call and complain enough? I know my
Mother would just put any failures like that down to "The Internet is
broken again".
Why don't you cache semi-transparently? (IE, connections to web servers
come from the external IP address of the proxy server).
I'm not aware of any real life cases of that breaking things, and as far
as I am aware, it's what most NZ providers do.. Feel free to prove me
wrong here, of course.
--
Nathan Ward
