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/
