hi Amos , thanks fro reply , sorry for late , i dont think that its hardware issue . i mean that i dont think that my hardware router cant bear two squid . it can do it and perfectly . i returned to its refernece manual and find it has a specific enhancement featured implemented fro wccp and it can load balance alot of clusters . agian , my platform is multilayer switch cisco 7604 . ======================================================== about ur queston in cpu dissipation : 1- when none of squid working on router ===> cpu of router is 4 % 2- when 1 squid working on router ====>cpu of router is 35 % 3- when 1 squid is running , and add the 2nd server while the 1st squid is running , i note that squid 1 fail and the 2nd squid dont work and the cpu of router reach 90 , 95 % , 97 % actually i dont know , if i need to change the return , forwarding , or assignment methods to fix my problem !!! which is better method between squid and router ? should i let the interface between switch and router as Layer 2 port , and put the wccp setting on the vlan interface of port ?? or let it as router "Layer 3 " port and apply wccp settings on the giga interface ?? any documents from squid about my issue ?? wish to help regards -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/what-is-best-method-to-connect-two-squid-servers-on-the-same-router-tp4659922p4660147.html Sent from the Squid - Users mailing list archive at Nabble.com.