Re: [ns] problem with web caching

[Haobo Yu <haoboy@packetdesign.com>]

simple-webcache.tcl does not have invalidations at all. The fact that it
is 'simple' says that it only does server-cache-client requests. If you
read this file and tcl/test/test-suite-webcahe.tcl carefully you'll see
how to use server/caches with invalidations.

If you changed simple-webcahce.tcl to use invalidation but it did not
work, i'd suggest you read tcl/test/test-suite-webcache.tcl to see how
it's supposed to work.

webcache.nam is generated using one test in teh webcache test suite. so is
mcache.nam. but both has some trick to have better nam visualization,
e.g., to have more annotation, and to use a packet queue to show layer
blocks in the latter.

On Mon, 2 Apr 2001, Cedric Charpentier (ELN) wrote:

> Hello ns-users,
>
> I am currently trying to do web caching (one client, one server and one cache)
> I use also a page generator PagePool/Math,
> I use the ns/tcl/ex/simple-webcache.tcl
>
> when I open the log file I ve got lot line with client send a request for a page etc...
> But when I visualise with nam I just have Server send a invalidation message (INV)
> There is no traffic.
> I don't know why?
>
> I see the webcache.nam and mcache.nam in nam/ex
> and i would like to see the tcl script
>
> Thanks
>
> c�dric
>
>
>