[103658] in North American Network Operators' Group
RE: Bandwidth issues in the Sprint network
daemon@ATHENA.MIT.EDU (Frank Bulk)
Thu Apr 10 13:40:39 2008
Reply-To: <frnkblk@iname.com>
From: "Frank Bulk" <frnkblk@iname.com>
To: <rcheung@rochester.rr.com>,
"Michael Holstein" <michael.holstein@csuohio.edu>
Cc: <nanog@merit.edu>
In-Reply-To: <12227186.922281207756904577.JavaMail.root@hrndva-web25-z02>
Date: Thu, 10 Apr 2008 12:18:05 -0500
Errors-To: owner-nanog@merit.edu
Good idea, but the other side doesn't have a Cisco box.
Frank
-----Original Message-----
From: rcheung@rochester.rr.com [mailto:rcheung@rochester.rr.com]
Sent: Wednesday, April 09, 2008 11:02 AM
To: Michael Holstein
Cc: frnkblk@iname.com; nanog@merit.edu
Subject: Re: Bandwidth issues in the Sprint network
You can also use ttcp from the command line, useful if its cisco on both
ends of the circuit.
sr01#ttcp
transmit or receive [receive]: transmit
Target IP address: 1.1.1.1
calculate checksum during buffer write [y]:
perform tcp half close [n]:
send buflen [32768]:
send nbuf [2048]:
bufalign [16384]:
bufoffset [0]:
port [5001]:
sinkmode [y]:
buffering on writes [y]:
show tcp information at end [n]:
ttcp-t: buflen=32768, nbuf=2048, align=16384/0, port=5001 tcp -> 1.1.1.1
sr02#ttcp
transmit or receive [receive]:
receive packets asynchronously [n]:
perform tcp half close [n]:
receive buflen [32768]:
bufalign [16384]:
bufoffset [0]:
port [5001]:
sinkmode [y]:
rcvwndsize [32768]:
ack frequency [0]:
delayed ACK [y]:
show tcp information at end [n]:
ttcp-r: buflen=32768, align=16384/0, port=5001
rcvwndsize=32768, delayedack=yes tcp
---- Michael Holstein <michael.holstein@csuohio.edu> wrote:
>
>
> > Does anyone know of bootable Linux CD with iperf on it?
> >
>
> Knoppix STD (security tools distro)
>
> http://www.knoppix-std.org/tools.html
>
> Cheers,
>
> Michael Holstein
> Cleveland State University
