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Re: Measuring PoP to PoP latency--tools to use?

  • From: Sam Thomas
  • Date: Thu Aug 23 10:31:46 2001

when someone asked me to do something like this, i waded through caida's
site and came accross this:

it's pretty cool stuff. requires *nix box, perl5, and some sort of
webserver software to produce simple reporting. there's also (optionally)
utilities that draw some pretty graphs that require gnuplot/ppmtogif.

imho, this is considerably better than logging into your router to do this.
routers are much better at forwarding packets than sending/receiving
them. (except older non-distributed routers, which aren't particularly
great at either for high traffic volumes) other bonus: no automated sending
of passwords from a box that might not get much admin attention.

one could probably modify these tools to use fping, but i just played
around with them for edutainment purposes. there's no mention of copyright
that i can find, but one should ask before using for commercial purposes.

On Thu, Aug 23, 2001 at 08:32:17AM -0400, mike harrison wrote:
> > It was cheesy, and not particularly scientific, but I've been trying to
> > find something like that to implement for the marketing folk. It could
> > probably be adapted into something more useful to us though. Suffice it
> fping, from Stanford originally, now at
> might be useful, it pings multiple hosts at the same time 
> (fast, efficient) It has easy to parse output and easily gives results
> like:
> fping -e <targets 
> is alive (0.32 ms)
> is alive (27.5 ms)
> is unreachable

Sam Thomas
Geek Mercenary