On Wed, 2008-03-19 at 11:23 +0800, John Lui wrote: > 1, Can htcp work with cache digest? Yes. > 2, How I can checked the cache digest is be used? There is stats in cachemgr. > 3, What is better to choice,ICP or HTCP? Today I would recommend ICP as it has lower overhead. Squid does not yet make much use of the additional features HTCP provides over ICP, and even if it would it's only relevant on a very low percentage of the requests. Regards Henrik