Bandwidth Usage - RRD Graphs



  • I know this sounds silly, but can someone teach me how to read the built in RRD graphs to determine overall WAN bandwidth?

    @http://doc.pfsense.org/index.php/How_can_I_monitor_bandwidth_usage%3F:

    If you are only interested in overall per-interface usage, there are built-in RRD graphs on pfSense, which can be found under Status > RRD Graphs.

    I clicked over to the "Traffic" tab after Steam downloaded 13.6GB of new games (Thanks humble bundle!), and none of the WAN numbers were even close to this. I'm guessing I'm either looking at the wrong graph, or just missing something.

    Thanks!

    EDIT: Also, there are more realistic looking numbers on the "LAN" graph. Is this the one I should be using? Will this include traffic going across the actual LAN?

    2.1-RC1 (i386)
    built on Thu Aug 1 19:03:40 EDT 2013



  • I guess this wasn't quite as silly as I thought judging by the replies!



  • @compy:

    I clicked over to the "Traffic" tab after Steam downloaded 13.6GB of new games (Thanks humble bundle!), and none of the WAN numbers were even close to this. I'm guessing I'm either looking at the wrong graph, or just missing something.

    The traffic RRD graphs show bandwidth consumed (bits per second). Its not clear to me how you compared "bits per second" with bytes and determined they "weren't even close".

    The attached traffic RRD graph from my system shows (mostly) 2Mbps download for about 24 hours on Friday and Saturday. 24 hours of 2Mbps gives a a bit under 22GB which is probably "close enough" for a download of a 17GB file (and possibly other files as well).

    Is it possible you downloaded compressed data and the report showed uncompressed data?



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