[25925] in resnet
Re: Network testing tools
daemon@ATHENA.MIT.EDU (Buraglio, Nicholas D)
Sat Feb 12 14:32:03 2011
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Date: Sat, 12 Feb 2011 19:29:54 +0000
Reply-To: Resnet Forum <RESNET-L@listserv.nd.edu>
From: "Buraglio, Nicholas D" <buraglio@illinois.edu>
To: RESNET-L@listserv.nd.edu
In-Reply-To: <4D56D62D.2040600@ucsc.edu>
Another very good set of test tools is the internet2/ESnet tool kit called perfsonar. It is often identified with deployments on high speed research networks but we have used it, and continue to use it for baselining networks and finding oddities (as well as on the research nets). Its one way latency tools are pretty useful when you have a handful of the systems in a mesh strategically placed throughout the network.
It can be deployed as a live cd or installed as an operating system.
Nick Buraglio
Network Engineer
UIUC/ICCN
On Feb 12, 2011, at 12:50 PM, "jim warner" <warner@ucsc.edu> wrote:
> We have statseeker as well, but we also use free open source tool smokeping.
>
> See: http://smokeping.ucsc.edu
> Pick ICMP from the menu on the left and then, perhaps, Resnet Switches
>
> One of my favorite low cost deployable smokeping target is a small NAT router.
> Many network switches have instrinsic jitter in their response time which partially
> obscures sensitivity to the jitter seen by users. If your NAT router is also a WiFi
> access point, remove the antennas so it's not bothered by radio noise.
>
> On 2/11/2011 8:01 PM, RESNET-L automatic digest system wrote:
>> From: Andy Voelker<avoelker@email.wcu.edu<mailto:avoelker@email.wcu.edu>>
>> We're getting reports of some seemingly random network slowdown by our student body. It is proving difficult to track down and we've been looking for some network traffic testing software to help out. Do you know of any good tools that can write pings to a graph, record latency, or anything that could help track down bottlenecks and dropped packets?
>>
>> Thanks,
>>
>> Andy Voelker
>>
>
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