WAN latency

[Michael Poland_3]

Hi,
We have a 'private' WAN link between two sites. Recently I noticed the ping trip times have increased by around 70%. Our service provide tells me that a ping has a lower priority than interactive traffic so I should not judge the circuit latency using ping. Does anyone have any ideas as to how I could confirm the telnet latency times between client on the remote site and the host hp-ux box?
Many thanks.

[rick jones]

Get a copy of netperf - www.netperf.org/ftp.netperf.org and configure it for histograms --enable-histograms, then run a TCP_RR test with a verbosity level of 2 and look at the resulting histogram and transaction per second rate. Pick a request/response size similar to that of the pings you were sending.

Or... on the client, run tcpdump and look at the packet trace