RE: Bandwidth issues in the Sprint network

["Frank Bulk" <frnkblk () iname com>]

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