Re: [Vyatta-users] latency tool

2008-01-18 Thread Robert D. Holtz - Lists
PM To: Dave Roberts Cc: vyatta-users@mailman.vyatta.com Subject: Re: [Vyatta-users] latency tool On Jan 17, 2008, at 7:15 AM, Dave Roberts wrote: I am looking for a tool that is able to measure the (one-way) latency or delay. From what i know ping or traceroute are only able to measure

Re: [Vyatta-users] latency tool

2008-01-18 Thread Jim Thompson
On Jan 17, 2008, at 7:15 AM, Dave Roberts wrote: I am looking for a tool that is able to measure the (one-way) latency or delay. From what i know ping or traceroute are only able to measure the RTT. There is no widely-used, standard tool that I know of. I’m sure there is some code

Re: [Vyatta-users] latency tool

2008-01-17 Thread Robert Bays
Hi Troopy, You want to look at netperf... http://www.netperf.org/ Cheers, Robert. Troopy . wrote: Hello, i have a question not directy related to Vyatta but more to networking. I am looking for a tool that is able to measure the (one-way) latency or delay. From what i know ping or

Re: [Vyatta-users] latency tool

2008-01-17 Thread Jonathon Exley
If you aren't all that worried about microsecond accuracy, then NTP can be made reasonably accurate, somewhere around +/- 10ms if yoou use multiple clock sources. See http://www.ijs.si/time/ for more info. A latency measurement tool that might be useful is D-ITG from

[Vyatta-users] latency tool

2008-01-17 Thread Ken Felix (C)
I've used D-ITG also, great for simulation of VOIP/SIP traffic. One other tools that has a longer history Mgen/Drec. Just like ITG you will need sync clocks between sender ( mgen ) and receiver ( drec ). Both pkgs allows for creation by src/dst/port/ttl/pps/kbps/etc... Mgen

Re: [Vyatta-users] latency tool

2008-01-17 Thread Troopy .
Hello Dave, Ken, Jonathon Many many thanks for your answers Very interesting Thanks Troopy -- Original Message -- From: Ken Felix (C) [EMAIL PROTECTED] Date: Thu, 17 Jan 2008 18:24:17 -0500 I've used D-ITG also, great for simulation of VOIP/SIP