


mrtg                                                   LOGFILE(1)



NNNNAAAAMMMMEEEE
     logfile - description of the mrtg-2 logfile format

SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
     This document provides a description of the contents of the
     mrtg-2 logfile.

OOOOVVVVEEEERRRRVVVVIIIIEEEEWWWW
     The logfile consists of two main sections. A very short one
     at the beginning:

     The first Line
         It stores the traffic counters from the most recent run
         of mrtg

     The rest of the File
         Stores past traffic rate averates and maxima at
         increassing intervals

     The first number on each line is a unix time stamp. It
     represents the number of seconds since 1970.

DDDDEEEETTTTAAAAIIIILLLLSSSS
     TTTThhhheeee ffffiiiirrrrsssstttt LLLLiiiinnnneeee

     The first line has 3 numbers which are:

     A   A timestamp of when MRTG last ran for this interface.
         The timestamp is the number of non-skip seconds passed
         since the standard UNIX "epoch" of midnight on 1st of
         January 1970 GMT.

     B   The "incoming bytes counter" value.

     C   The "outgoing bytes counter" value.

     TTTThhhheeee rrrreeeesssstttt ooooffff tttthhhheeee FFFFiiiilllleeee

     The second and remaining lines of the file 5 numbers which
     are:

     A   The Unix timestamp for the point in time the data on
         this line is relevant.  Note that the interval between
         timestamps increases as you prograss through the file.
         At first it is 5 minutes and at the end it is one day
         between two lines.

         This timestamp may be converted in EXCEL by using the
         following formula:

          =(x+y)/86400+DATE(1970,1,1)




2000-12-12              Last change: 2.9.6                      1






mrtg                                                   LOGFILE(1)



         you can also ask perl to help by typing

          perl -e 'print scalar localtime(x),"\n"'

         xxxx is the unix timestamp and yyyy is the offset in seconds
         from UTC. (Perl knows yyyy).

     B   The average incoming transfer rate in bytes per second
         since the previous measurement.

     C   The average outgoing transfer rate in bytes per second
         since the previous measurement.

     D   The maximum incoming transfer rate in bytes per second
         since the previous measurement.

     E   The maximum outgoing transfer rate in bytes per second
         since the previous measurement.

AAAAUUUUTTTTHHHHOOOORRRR
     Butch Kemper <kemper@bihs.net> and Tobias Oetiker
     <oetiker@ee.ethz.ch>

































2000-12-12              Last change: 2.9.6                      2



