[175253] in North American Network Operators' Group
Re: Keeping Track of Data Usage in GB Per Port
daemon@ATHENA.MIT.EDU (Livingood, Jason)
Wed Oct 15 16:38:19 2014
X-Original-To: nanog@nanog.org
From: "Livingood, Jason" <Jason_Livingood@cable.comcast.com>
To: Colton Conor <colton.conor@gmail.com>, NANOG <nanog@nanog.org>
Date: Wed, 15 Oct 2014 20:33:07 +0000
In-Reply-To: <CAMDdSzN6XjFn+xu8KMy5suntBHQ6t95-Zc7UWx+T6gvJQj6jqw@mail.gmail.com>
Errors-To: nanog-bounces@nanog.org
There are lots of ways to do it. Cable uses IPDR, which is baked into
DOCSIS standards.=20
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?
>> >
>>
>>
