Abdullah, Thanks. We originally get this suggestion from our vendor (you know this major player's name :-). Then we realized, if not running WCCP between router and cache, then the cache is unable to throw back the request. So a more generic question. Can squid, or any other cache engine support by-pass function ? or "throw" back function when it find the request is not cacheable ? All question under no-WCCP condition. BTW, Is there any cache solution, other than Cisco, or Inktomi, that you think working well under 500~1000M backgroud traffic ? thanks ! Yu

-----Original Message----- From: Abdullah Hameed Sheikh [mailto:ahameed@singtel.com] Sent: Monday, December 29, 2003 12:20 PM To: Yu Ning; Nanog Subject: RE: Cachibility analysis software ?

Use policy routing to force all traffic to go out cache interface. And the cache interface (via connected servers/ cache engine) cache the web/ftp content and throw rest of the traffic back to the router to make independent decision.

If you are good in squid, and can write some IP layer programming, you can do it in Linux.

There is a company named something like Macanaye... They have a very good implementation... The bad thing is that their company name is so difficult that I cannot remember the spelling and Due to such a "troubled" name, a lot of my referral now using other products. :D

If you are interested, I really need to dig thru my emails...

regards Abdullah

-----Original Message----- From: Yu Ning [mailto:yuning@ctnt.com.cn] Sent: Monday, December 29, 2003 11:46 AM To: 'Nanog' Subject: Cachibility analysis software ?

Hi nanog,

Can anyone tell me is there any tool to analysis if a web site is cachable ? Or now many content in a given site is cachable ?

What's more, if router does not support WCCP, how can a cache work with him ? Any suggestion ?

thanks !

Yu Ning

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(Mr.) Yu Ning, Vice Director Networking & Engineering Dep. North Telecom BU, China Telecom Beijing, P.R.China +86-10-66002099 ______________________________________