rude/crude - http://rude.sourceforge.net/
Simple command-line tools to send and receive UDP packets.
The sender generates packets with timestamps, according to
either a rate/size, or a script with packet sizes and relative
timestamps. The receiver generates a log file including sender timestamps
(from the packets) and receiver timestamps, which you could
then use to feed something like SmokePing. It shouldn't be too difficult to build a system based on this
yourself.OWAMP - http://e2epi.internet2.edu/owamp/
Something like rude/crude, but running as a daemon with some
signaling mechanism to initiate measurements. I don't
personally have any experience with this.RIPE TTM - http://www.ripe.net/test-traffic/
An entire network of systems running one-way delay and loss
measurements (and traceroutes). You can order one or several
boxes and have RIPE NCC run them for a fee. Measurement data
is processed centrally in Amsterdam, with useful analyses,
nice graphical representations, and good query (and on-demand
graphing) options. Normally all measurements from all boxes
is publicly accessible.<\snip>
Personally, I only have experience in rude/crude. This provides even jitter information. There was a project at cesnet, I think, that used gps time signals for sync of rude/crude boxes. Smokeping itself only displays rtt delay (but this is very nice, indeed).
But all those tools use sythetic traffic to measure.
There are also commercial tools, but even those do not show the requested information for UDP traffic, as far as I know
Cheers Reinhard
Frank Clatterbaugh wrote:
Have you looked at smokeping ? It might be of use to you.
FCC
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brian Raymond Sent: Tuesday, September 28, 2004 4:09 PM To: [EMAIL PROTECTED] Subject: Re: [Ntop] Packet loss and latency reporting?
I actually came across a tool called NetMate which looks very promising, It's only had two releases and I'm not sure if it's maintained anymore because things look quiet but I'm going to patch it to compile on my OS X box anyway to give it a shot.
Aside from purpose built H.323 and SIP tools I haven't seen anything that passively captures metrics for loss, latency, jitter for UDP or TCP so this might fit that bill.
http://www.fokus.fraunhofer.de/research/cc/meteor/projects/ip-qos/netmat e/index.php
- Brian
Wesley Bresson wrote:
forSmokeping by Tobi (maker of mrtg)
--Wesley
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Monday, September 27, 2004 12:23 PM
To: [EMAIL PROTECTED]
Subject: [Ntop] Packet loss and latency reporting?
I've used Ntop for a while now and love it, I've purchased licenses
the Windows version for others in my company and everyone has had good
GUIluck with it.
I have the current 3.0 stable release running on my OSX box today and I'm trying to track the packet loss, latency and jitter for a TCP session between another host and I. I don't see anywhere in the Ntop
where it reports on those statistics.
If I missed it can anyone point me to the right place, if not does someone have a suggestion on the tool I should use to get those stats?
Thanks,
- Brian Raymond
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