Hi, We use squid as LB for HTTP Traffic (by defining cache-peers), It works quite well when we have a connectivity failure between squid and one of the application servers so then it will try next possible cache-peer Our cache-peer are defined with round-robin: cache_peer <AS_IP> parent <AS_PORT> 0 no-query originserver name=asAccel1 round-robin cache_peer <AS_IP2> parent <AS_PORT2> 0 no-query originserver name=asAccel2 round-robin However we would like to handle following scenario: If our applications is not deployed on application server (glassfish) but the application server is started then we receive 503 Service unavailable answer from the application server. On that case we would like our squid to try next possible node too however it keeps using the cache-peer answering 503. Are we using some bad setting on squid.conf? So, how can we achieve to switch to next possible node when we receive a 503 answer? Thanks,