[mrtg] Re: How Do They Do It ??

[Colin_McFadyen]

I been able to gather stats for a port with no problem.

How does one get stats for individual PVCs on a port?

Colin McFadyen
Supervisor of Computer Operations
Carleton University Computing and Communications Services
(613) 520-2600 x3721  fax: (613) 520-4448


-----Original Message-----
From: Boucher,Andre [CMC] [mailto:Andre.Boucher at ec.gc.ca]
Sent: Friday, August 13, 1999 8:05 AM
To: 'Javier Tan'; mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: How Do They Do It ??


Hi,

The information collected if collected through the ifInOctets Mib.  This mib
gives the amount of traffic on an interface in Octets per second, or if you
prefer, Bytes per second.  Then, by doing Bytes * 8, you get the amount of
traffic in bits per second.

André Boucher

-----Original Message-----
From: Javier Tan [mailto:javier_tan at hotmail.com]
Sent: 1999/08/12 21:07
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] How Do They Do It ??



Hi all,

I've been using MRTG for months now, but I have not really figured out how 
it converts data into the correct units that you what it to display.

Let me run you through here........For example,if I'm running several ATM 
switches and I want MRTG to graph & display it in bits. I just have to 
specify the parameter in the "Options[_]:"( as mentioned in the config.txt 
that comes together with MRTG ). But How does it do the job of converting 
the "Octets" or even "Cells" which is in the case of ATM ??

Since 1 cell= 53 Bytes, I would presume that it does this :
( P = Amount of traffic on the switch in "Cells" )

Traffic in bits = P x 53 x 8


I'm a greenie to PERL, so that explains why I can't figure out the part of 
the Code which does the conversion.

Hope you guys could enlighten me on this.

Please pardon my ignorance.

Thanks a Million !!!


Regards,
Javier Tan
Network Support Team




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