North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Traceroute versus other performance measurement
FYI - there is anether program, available with source (unlike pathchar) called pchar: http://www.employees.org/~bmah/Software/pchar/ Grisha Wed, 29 Nov 2000, Ping Pan wrote: > > Have you tried pathchar? It's pretty much the same as traceroute, but it > is to estimate e2e bandwidth. When it first came out, I tried it. It > didn't give good results. I heard it had been enhanced since. Go to > ftp://ftp.ee.lbl.gov/pathchar/ > > - Ping > > On Wed, 29 Nov 2000, Paul Bradford wrote: > > > > > I have been reading NANOG posts for probably 2 years now.. this is my 1st post. > > > > I need help with a reality/sanity check. Traceroute is a good tool for > > checking for routing type problems (loops). Does anyone feel it's a good tool > > to use for testing "bandwidth".... My obvious answer is it isn't a good tool > > for that.... One problem I see is that the way traceroute works, if a > > transport mixes media between say Ethernet to LANE and back to Ethernet you > > give room for Destination unreachable responses from a trace route because you > > have to to packet switching medias with a fast cell switched media in > > between.... packets less than 64k (like traceroute info) are easily lost in the > > conversion from ethernet to LANE. > > > > Does this sound right? > > Thanks, > > Paul A. Bradford > > > > > >
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