If you wanted to capture the exact Layer 4 'payload' transfer for a given
port (between specific nodes or not) you could use the pcap libraries
(libpcap http://www.tcpdump.org/pcap3_man.html
<http://www.tcpdump.org/pcap3_man.html> ) found at www.tcpdump.org
<http://www.tcpdump.org> . You would filter on a given port (and nodes if
wanted), wait for the start packet and capture any segment, packet, frame,
etc totals you wanted. It would be a pretty easy application that would not
take much time or money.
Best of luck,
Jason Allison
Principal Engineer
ARINC Incorporated
Office: (410) 266-2006
FAX: (410) 573-3026
-----Original Message-----
From: Seminara, Sandro [mailto:SSeminara AT fnis DOT com]
Sent: Tuesday, May 20, 2003 5:09 PM
To: 'JamesHorwath AT glic DOT com'; Seminara, Sandro
Cc: 'Bernard, Mark N.'; Seminara, Sandro; nv-l AT lists.tivoli DOT com
Subject: RE: [nv-l] Monitoring Throughput
MRTG is only able to give you total throughput on an interface, not
throughput of a data transfer session.
For instance say 10 users are downloading files files @ 10k per second over
a T1. The session throughput is 10k, the total interface utilization would
be 100k.
-----Original Message-----
From: JamesHorwath AT glic DOT com [mailto:JamesHorwath AT glic DOT com]
Sent: Tuesday, May 20, 2003 2:58 PM
To: Seminara, Sandro
Cc: 'Bernard, Mark N.'; Seminara, Sandro; nv-l AT lists.tivoli DOT com
Subject: RE: [nv-l] Monitoring Throughput
Sandro,
With MRTG you could monitor the interface of your PC, cable modem, Unix box,
or whatever and that should give you the number you are after.
Jim
Jim Horwath
Guardian
IT Unix Services
610-807-8795
To: "'Bernard, Mark N.'" <MARK.N.BERNARD AT saic DOT com>, "Seminara,
Sandro" <SSeminara AT fnis DOT com>, nv-l AT lists.tivoli DOT com
cc:
bcc:
Subject: RE: [nv-l] Monitoring Throughput
Yeah that's true, but that's total throughput on the circuit. For instance
you can have several people transferring continuous data back and forth on a
T1 and still only half of the circuit could be utilized.
-----Original Message-----
From: Bernard, Mark N. [mailto:MARK.N.BERNARD AT saic DOT com]
Sent: Tuesday, May 20, 2003 2:28 PM
To: 'Seminara, Sandro'
Subject: RE: [nv-l] Monitoring Throughput
MRTG.org
-----Original Message-----
From: Seminara, Sandro [mailto:SSeminara AT fnis DOT com]
Sent: Tuesday, May 20, 2003 3:19 PM
To: nv-l AT lists.tivoli DOT com
Subject: [nv-l] Monitoring Throughput
Does anyone know a tool that can monitor throughput? The only way I can
think of measuring throughput would be manually FTPing a file. Is there a
tool out there that can do this automatically? I was thinking of using a
Speed Test website, but that would measure throughput between my sources and
the internet.
Thank you,
Sandro Seminara
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