[mrtg] run "RRDtool graph" from windows cmdline on file.rrd created by MRTG

[Petr Lázňovský]

Creating .rrd files by MRTG. Trying to create graphs from this files on windows cmdline does not understand (even after hours of googling). Can someone explain me this directive:

DEF:traffic=file.rrd:traffic:AVERAGE

I understand the file.rrd is data file created by MRTG. But does not understand what is twice traffic word, and the AVERAGE word. At this moment always got error:

ERROR: Cannot parse DS in 'DEF:traffic=file.rrd:traffic:AVERAGE'


L.