There are lots of ways to do it. Cable uses IPDR, which is baked into DOCSIS standards. http://en.wikipedia.org/wiki/Internet_Protocol_Detail_Record
On 10/15/14, 1:38 PM, "Colton Conor" <colton.co...@gmail.com> wrote: >So based on the response I have received so far it seems cable was a >complicated example with service flows involved. What if we are talking >about something simpler like keeping track of how much data flows in and >out of a port on a switch in a given month? I know you can use SNMP, but I >believe that polls in intervals and takes samples which isn't really >accurate right? > >On Wed, Oct 15, 2014 at 1:40 PM, <na...@jack.fr.eu.org> wrote: > >> Folks, use sflow with rrdtool! >> >> Quite awesome & handy >> >> On 15/10/2014 20:14, valdis.kletni...@vt.edu wrote: >> > On Wed, 15 Oct 2014 13:06:56 -0500, Colton Conor said: >> > >> >> on a cisco switch vs a DSL port on a DSLAM for example? I would think >> these >> >> access switches would have some sort of stat you can count similar >>to a >> >> utility meter reader on a house. See what it was at last month, see >> what is >> >> is at this month, subtract last months from this months, and the >> difference >> >> is the total amount used for that month. >> > >> > Assume a 20mbit connection. How many times can this roll over a >> > 32 bit counter in a month if it's going full blast? >> > >> >>
