Thanks Chuck, Bruce and James for your replys, I did clear the counters 6 weeks ago (near the beginning of march) while i was troubleshooting another issue .
The router was not rebooted for 15 weeks. Thanks for the hint that the counters are (most probably) 32-bit counters, although the 3 Billion bytes reported as output should fit in the counter. Guess i'll have to live with it and need to implement a better approach to track this stuff. Cheers, Peter On Thu, Apr 19, 2012 at 7:05 PM, Chuck Church <chuckchu...@gmail.com> wrote: > Could be a bunch of reasons. Were the counters cleared at the time when > the > provider's time of measure started? Did the router reboot or were the > counters cleared since? These counters are either a 32 or 64 bit counter. > They do occasionally wrap and start over at 0, pretty frequent on 32 bit > counters. > > Chuck > > > -----Original Message----- > From: cisco-nsp-boun...@puck.nether.net > [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of Peter Subnovic > Sent: Thursday, April 19, 2012 12:43 PM > To: cisco-nsp@puck.nether.net > Subject: [c-nsp] Understanding Out/Input bytes in Interface Counters on > 2811 > > Dear List, > > i am having an Cisco 2811 with IOS (C2800NM-ADVENTERPRISEK9-M), Version > 12.4(24)T > > Our Provider told us that we had a traffic volume of 300GB last month, but > the interface counters do not reflect these values: > > I am curios, if the reported volume should be reflected in the out/input > bytes > > When i am looking on the counters of the interface which is connected to > the > Provider Router, the following values are shown: > > 1089368953 packets input, 744025984 bytes > > 970733443 packets output, 3196131116 bytes > > I searched the Open/Resolved Caveats document, but couldnt find anything > related. > > http://www.cisco.com/en/US/docs/ios/12_4t/release/notes/124TCAVS.pdf > > So my question is: > > Shouldn't they be at least somewhat near the reported volume? or am i > missing something (maybe very basic) here? or are the counters just broken? > > Unfortunately, i do not have any other possibility to verify the volume (i > know this is bad and will be changed). > > Any pointers to documents or something else is highly appreciated. > > Thanks for your time. > > Kind regards, > Peter > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/