nanog mailing list archives

Re: Re: Recommendation of Tools


From: aawolfe () gmail com
Date: Wed, 03 Dec 2008 07:08:09 +0000

On Dec 3, 2008 1:52am, Pekka Savola <pekkas () netcore fi> wrote:
On Tue, 2 Dec 2008, Andrew Mulholland wrote:


On Tue, Dec 2, 2008 at 10:47 PM, Lee, Steven (NSG Malaysia)
kin-wei.lee () hp com> wrote:




Hi all, do you have any recommended tools that can measure latency/delay

hop by hop basis? Preferable the tools can measure the running (live)

traffic.






mtr ? - http://www.bitwizard.nl/mtr/




FWIW, Mtr measures latency/delay and loss based on ICMP messages heard
back from the routers on path. As a result, in almost all cases, the real hop-by-hop latency of actual end-to-end data packets is better than it can report.



tcptraceroute is handy for looking at what's going on with tcp
http://michael.toren.net/code/tcptraceroute/



--

Pekka Savola "You each name yourselves king, yet the

Netcore Oy kingdom bleeds."

Systems. Networks. Security. -- George RR Martin: A Clash of Kings





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