Re: Keeping Track of Data Usage in GB Per Port

[Alastair Johnson <aj () sneep net>]

There's no correlation between PPPoE and RADIUS. Many (if not all) BRAS/BNG platforms will support RADIUS based 
accounting for IPoE sessions.

The majority of accounting is done that way; with outliers using some other mechanism (Diameter; proprietary vendor 
billing solutions; flow based platforms; or counters elsewhere on the network).

WiFi in my experience also typically uses a RADIUS based approach, although it can depend on the deployment context.

AJ

  Original Message  
From: Colton Conor
Sent: Sunday, October 19, 2014 3:35 PM
To: Livingood, Jason
Cc: NANOG
Subject: Re: Keeping Track of Data Usage in GB Per Port

So it looks like DOCSIS cable has a great solution with IPDR, but what
about DSL, GPON, and regular Ethernet networks?

It was mentioned that DSL uses radius, but most new DSL systems no longer
use PPPoE, so I don't believe radius is a viable option.

What about Wifi Access Points? What would be the best way to track usage
across these devices?

On Wed, Oct 15, 2014 at 3:33 PM, Livingood, Jason <
Jason_Livingood () cable comcast com> wrote:

> 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?