Jim mentioned a few tools for diagnosing packet delay, such as "smoke ping." Did anyone catch the full name of those tools? (Not Netalyzer, which I'm already familiar with.)
I had a packet latency problem (occasional spikes into the seconds) on a wireless LAN a while back, and looked around for tools at the time and didn't find anything that really did what I wanted. I ended up throwing together a small tool using a ping library for Perl. It pinged a target host periodically and output a timestamp and an ASCII bargraph that was proportional to the latency. It also, when the latency exceeded a threshold, output a tone that varied proportional to amount of latency. Eventually the problem was traced back to an incorrectly configured QoS setting where the bandwidth limit was set in excess of the WAN speed. This was apparently filling up the router's buffers, and spilling over to its ability to pass packets between the WLAN and the LAN. -Tom -- Tom Metro Venture Logic, Newton, MA, USA "Enterprise solutions through open source." Professional Profile: http://tmetro.venturelogic.com/ _______________________________________________ bblisa mailing list [email protected] http://www.bblisa.org/mailman/listinfo/bblisa
