On Sat, 2011-04-23 at 21:24 +0800, jiluspo wrote: > therefore squid 3.2 still cant preserve TOS value from remote server to > clients. Correct. > hmn. what about the zph that requires kernel patch? zph and qos_flows are the same thing. The names differ between different versions of Squid. > would it work with > remote servers? > Should do. To avoid a kernel patch (using v3.2), what you could do, is to use the iptables tos match to set a mark on a packet, and then match the mark in Squid. For example: iptables -A PREROUTING -t mangle -m tos --tos 0x4 -j MARK --set-mark 0x4 will transfer a TOS value of 0x4 to a mark value of 0x4. You could transfer this back again in the POSTROUTING chain using a similar method. > lastly, what about its performance degradation(req/sec and service time) if > we add this feature. Performance degradation should be minimal, although I haven't run any benchmarks. Andy
