[156183] in North American Network Operators' Group

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Re: Traffic Burstiness Survey

daemon@ATHENA.MIT.EDU (Heath Jones)
Tue Sep 11 00:40:34 2012

In-Reply-To: <CAPKebPw3Fktw58e9ndcuG4ZTsqPMSuPW8MS9Jg9x+YqnkPeJ_Q@mail.gmail.com>
Date: Tue, 11 Sep 2012 14:40:07 +1000
From: Heath Jones <hj1980@gmail.com>
To: Monia Ghobadi <monia@cs.toronto.edu>
Cc: NANOG@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Hi Monia,

'Burst' is a very broad term. It would be useful to clarify to what you are
referring.. I can think of a few possibilities:

- Data Transmission: The length of an uninterrupted flow of information.
- Traffic Engineering: The ability for traffic to temporarily exceed it's
allocated (average) bandwidth share.
- Internal Event: A backup (scheduled) or a server failure (adhoc) altering
traffic patterns.
- External Event: Marketing campaign / event coinciding with increased
traffic towards say, a website.

Perhaps -> Over what period of time is a 'Burst'..?


Cheers,
Heath


On Sun, Sep 9, 2012 at 10:23 AM, Monia Ghobadi <monia@cs.toronto.edu> wrote=
:

> Dear Nanog members,
>
> I am a PhD student at University of Toronto and I am working on traffic
> burstiness in data centers. In the following I am asking two questions to
> raise motivation for my research. I appreciate if anyone could answer the=
se
> questions to their best knowledge. *The questions are:*
>
> 1) =91Bursty=92 is a word with no agreed meaning. How do you define a bur=
sty
> traffic?
> 2) If you are involved with a data center, is your data center traffic
> bursty?
>    -- If yes,
>          -- Do you think that it will be useful to supress the burstiness
> in your traffic? (For example by pacing the traffic into shorter bursts)
>     -- If no:
>         -- Are you already supressing the burstiness? How?
>          -- Would you anticipate the traffic becoming burstier in the
> future?
>
> Thanks,
> Monia
>
> ------------------
> Monia Ghobadi
> PhD Student
> University of Toronto
> http://www.cs.utoronto.ca/~monia/
>

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