Hello,
I need to discover the TCP end-to-end latency between web clients and
servers transparently (i.e. without altering the clients or the
servers in any way). I have squid running as a proxy server on a
linux box, sitting between the clients and the servers. I can have
the clients change their proxy settings to have requests pass through
squid. Squid can measure latencies between itself and the web
servers. The problem is to measure the network latency when squid
tries to forward the server responses back to clients.
Can packet filtering help me with this? Can I, for example, filter
for the client ACK of the last bit of data sent from squid back to
the client?
Also, I still need to device a solution to measure network latency
experienced by the client's SYN sent to the squid box. Any ideas?
thanks in advance,
Rohit Grover.
