Re: Keeping Track of Data Usage in GB Per Port

["Livingood, Jason" <Jason_Livingood () cable comcast com>]

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.conor () 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, <nanog () jack fr eu org> wrote:
>
> > Folks, use sflow with rrdtool!
> >
> > Quite awesome & handy
> >
> > On 15/10/2014 20:14, Valdis.Kletnieks () 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?