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RE: [nv-l] Monitoring Throughput

To: "'nv-l'" <nv-l@lists.tivoli.com>
Subject: RE: [nv-l] Monitoring Throughput
From: "Allison, Jason (JALLISON)" <JALLISON@arinc.com>
Date: Wed, 21 May 2003 07:58:01 -0400
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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@fnis.com]
Sent: Tuesday, May 20, 2003 5:09 PM
To: 'JamesHorwath@glic.com'; Seminara, Sandro
Cc: 'Bernard, Mark N.'; Seminara, Sandro; nv-l@lists.tivoli.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@glic.com [mailto:JamesHorwath@glic.com] 
Sent: Tuesday, May 20, 2003 2:58 PM
To: Seminara, Sandro
Cc: 'Bernard, Mark N.'; Seminara, Sandro; nv-l@lists.tivoli.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@saic.com>, "Seminara,
Sandro" <SSeminara@fnis.com>, nv-l@lists.tivoli.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@saic.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@fnis.com]
Sent: Tuesday, May 20, 2003 3:19 PM
To: nv-l@lists.tivoli.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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