[27462] in resnet
Re: ResNet Bandwidth Standards and Shaping too.
daemon@ATHENA.MIT.EDU (Chris Webster)
Wed Mar 14 15:07:06 2012
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Date: Wed, 14 Mar 2012 15:04:53 -0400
Reply-To: Resnet Forum <RESNET-L@listserv.nd.edu>
From: Chris Webster <chris.webster@ncsu.edu>
To: RESNET-L@listserv.nd.edu
In-Reply-To: <AFF7E56B606814458FDD7379332233491C6907B8@SV-EXCMB-01.principia.local>
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Once you start doing traffic analyses, you might be surprised at what types
of things students are using the bandwidth for. I don't have answers to
your questions from a personal perspective (we do no shaping or blocking
here, just a hard cap on overall bandwidth usage), but your questions
reminded me of a presentation given at ResNet 2010. Greg Parks from the
University of Waterloo gave an excellent presentation about their using a
Sandvine appliance to analyze their traffic and he shared some detailed
results as well.
The description can be found here:
http://resnetsymposium.org/resnet2010/program/ (the presentation is titled
"Unlimited Limits").
Video link:
http://resnetsymposium.org/resnet2010/videos/s3p3_unlimited_limits.mp4
Powerpoint link:
http://resnetsymposium.org/resnet2010/wp-content/uploads/2010/06/Unlimited-=
Limits.pptx
-Chris
On Wed, Mar 14, 2012 at 12:40 PM, Chris Davis <Chris.Davis@prin.edu> wrote:
> I=92ve been following this thread with interest. I=92m always intereste=
d in
> how we could be doing our bandwidth optimizations better. Both the overa=
ll
> amount and how we slice and dice it are interesting to me. ****
>
> ** **
>
> It seems that the answers all bear a similar proportion to me. Almost al=
l
> of the respondents that were not getting wiped out seemed to have a ratio
> of students to Mbps in bandwidth that was about 4:1. That is where we ar=
e
> planning to go to this year on our college campus and on our K-12 campus.
> I=92m glad to see that the ratio is working at numerous sites of all size=
s.
> ****
>
> ** **
>
> What I have is a question about the 2nd bit. Slicing and dicing the
> bandwidth up among users. We have been a Packetshaper client for years.
> We have purchased 5 of the boxes over the last 10 or 12 years. But I=92m
> beginning to wonder (like someone else who answered this topic) if the de=
ep
> inspection identification is the way to share traffic. Would it be bette=
r
> to jump to some other technology that spends it=92s time dicing the bandw=
idth
> fairly and equally between the people using the bandwidth? I am thinking
> so, and as we get larger and larger amounts of bandwidth, the cost of a
> device like the Packetshaper is leading me to think I=92m right. So,
> especially any of you that have made the jump from Packetshaper to
> something else, what is your opinion/feelings about the jump you made.
> What were the reasons you made the jump? Does your new solution do what
> you wanted it to do? Especially those who were looking to share out the
> bandwidth equally among your students. I will find it hard to give up
> blocking traffic like P2P as I do with my Packetshaper. I=92d love to kn=
ow
> what you are using and why you went with it and more importantly, how it =
is
> meeting your needs. I=92ll summarize if folks want, but I really would l=
ove
> to hear from you. ****
>
> ** **
>
> Thanks.****
>
> Chris Davis****
>
> CIS Security Director****
>
> The Principia****
>
> Saint Louis, Mo 63131****
>
> ** **
>
> *From:* Resnet Forum [mailto:RESNET-L@LISTSERV.ND.EDU] *On Behalf Of *
> John.Kissinger
> *Sent:* Wednesday, March 07, 2012 12:01 PM
> *To:* RESNET-L@LISTSERV.ND.EDU
> *Subject:* ResNet Bandwidth Standards****
>
> ** **
>
> Colleagues****
>
> We are in the midst of expanding our residence population and working on
> standards of service.****
>
> Does anyone use a formula for calculating minimum or optimum bandwidth fo=
r
> ResNet, such as bandwidth per resident student, or a similar approach?***=
*
>
> ** **
>
> ** **
>
> John Kissinger****
>
> Director of Information Technology****
>
> Alvernia University****
>
> Desk: 610 796 8392****
>
> Cell: 610 587 1759****
>
> Email: john.kissinger@alvernia.edu****
>
> ** **
>
> ___________________________________________________ You are subscribed to
> the ResNet-L mailing list. ****
>
> To subscribe, unsubscribe or search the archives, go to
> http://LISTSERV.ND.EDU/archives/resnet-l.html____________________________=
_______________________
> ****
> ___________________________________________________ You are subscribed
> to the ResNet-L mailing list.
>
> To subscribe, unsubscribe or search the archives, go to
> http://LISTSERV.ND.EDU/archives/resnet-l.html____________________________=
_______________________
>
--=20
Chris Webster
Senior Technician
OIT Walk-in Center
North Carolina State University
Ph: 919.513.2676
Fax: 919.513.2945
Email: chris.webster@ncsu.edu
Web: http://go.ncsu.edu/wic/
___________________________________________________
You are subscribed to the ResNet-L mailing list.
To subscribe, unsubscribe or search the archives,
go to http://LISTSERV.ND.EDU/archives/resnet-l.html
___________________________________________________
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Once you start doing traffic analyses, you might be surprised at what types=
of things students are using the bandwidth for.=A0I don't have answers=
to your questions from a personal perspective (we do no shaping or blockin=
g here, just a hard cap on overall bandwidth usage), but your questions rem=
inded me of a presentation given at ResNet 2010. Greg Parks from the Univer=
sity of Waterloo gave an excellent presentation about their using a Sandvin=
e appliance to analyze their traffic and he shared some detailed results as=
well.<div>
<br></div><div>The description can be found here:=A0
<a href=3D"http://resnetsymposium.org/resnet2010/program/">http://resnetsym=
posium.org/resnet2010/program/</a>=A0(the presentation is titled "Unli=
mited Limits").=A0</div><div>Video link:=A0<a href=3D"http://resnetsym=
posium.org/resnet2010/videos/s3p3_unlimited_limits.mp4">http://resnetsympos=
ium.org/resnet2010/videos/s3p3_unlimited_limits.mp4</a></div>
<div>Powerpoint link:=A0<a href=3D"http://resnetsymposium.org/resnet2010/wp=
-content/uploads/2010/06/Unlimited-Limits.pptx">http://resnetsymposium.org/=
resnet2010/wp-content/uploads/2010/06/Unlimited-Limits.pptx</a></div><div>
<br>
</div><div>-Chris</div><div><br></div><div><br><div class=3D"gmail_quote">O=
n Wed, Mar 14, 2012 at 12:40 PM, Chris Davis <span dir=3D"ltr"><<a href=
=3D"mailto:Chris.Davis@prin.edu">Chris.Davis@prin.edu</a>></span> wrote:=
<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<div lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">I=92ve been following =
this thread with interest.=A0 I=92m always interested in how we could be do=
ing our bandwidth optimizations better.=A0 Both the overall amount and how =
we slice and dice it are interesting to me.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=A0<u></u></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">It seems that the answ=
ers all bear a similar proportion to me.=A0 Almost all of the respondents t=
hat were not getting wiped out seemed to have a ratio of students to Mbps i=
n bandwidth that was about 4:1.=A0 That
is where we are planning to go to this year on our college campus and on o=
ur K-12 campus.=A0 I=92m glad to see that the ratio is working at numerous =
sites of all sizes.=A0
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=A0<u></u></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">What I have is a quest=
ion about the 2<sup>nd</sup> bit.=A0 Slicing and dicing the bandwidth up am=
ong users.=A0 We have been a Packetshaper client for years.=A0 We have purc=
hased 5 of the boxes over the last 10 or 12
years.=A0 But I=92m beginning to wonder (like someone else who answered th=
is topic) if the deep inspection identification is the way to share traffic=
.=A0 Would it be better to jump to some other technology that spends it=92s=
time dicing the bandwidth fairly and equally
between the people using the bandwidth?=A0 I am thinking so, and as we get=
larger and larger amounts of bandwidth, the cost of a device like the Pack=
etshaper is leading me to think I=92m right.=A0 So, especially any of you t=
hat have made the jump from Packetshaper
to something else, what is your opinion/feelings about the jump you made.=
=A0 What were the reasons you made the jump?=A0 Does your new solution do w=
hat you wanted it to do?=A0=A0 Especially those who were looking to share o=
ut the bandwidth equally among your students.=A0
I will find it hard to give up blocking traffic like P2P as I do with my P=
acketshaper.=A0 I=92d love to know what you are using and why you went with=
it and more importantly, how it is meeting your needs.=A0 I=92ll summarize=
if folks want, but I really would love
to hear from you.=A0 <u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=A0<u></u></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">Thanks.<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">Chris Davis<u></u><u><=
/u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">CIS Security Director<=
u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">The Principia<u></u><u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">Saint Louis, Mo=A0 631=
31<u></u><u></u></span></p>
<p class=3D"MsoNormal"><a name=3D"136126584794f2f4__MailEndCompose"><span s=
tyle=3D"font-family:Papyrus;color:#1f497d"><u></u>=A0<u></u></span></a></p>
<div>
<div style=3D"border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:"=
;Tahoma","sans-serif"">From:</span></b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif""> Resnet F=
orum [mailto:<a href=3D"mailto:RESNET-L@LISTSERV.ND.EDU" target=3D"_blank">=
RESNET-L@LISTSERV.ND.EDU</a>]
<b>On Behalf Of </b>John.Kissinger<br>
<b>Sent:</b> Wednesday, March 07, 2012 12:01 PM<br>
<b>To:</b> <a href=3D"mailto:RESNET-L@LISTSERV.ND.EDU" target=3D"_blank">RE=
SNET-L@LISTSERV.ND.EDU</a><br>
<b>Subject:</b> ResNet Bandwidth Standards<u></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=A0<u></u></p>
<p class=3D"MsoNormal">Colleagues<u></u><u></u></p>
<p class=3D"MsoNormal">We are in the midst of expanding our residence popul=
ation and working on standards of service.<u></u><u></u></p>
<p class=3D"MsoNormal">Does anyone use a formula for calculating minimum or=
optimum bandwidth for ResNet, such as bandwidth per resident student, or a=
similar approach?<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=A0<u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ar=
ial Unicode MS","sans-serif"">John Kissinger<u></u><u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ar=
ial Unicode MS","sans-serif"">Director of Information Techno=
logy<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ar=
ial Unicode MS","sans-serif"">Alvernia University<u></u><u><=
/u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ar=
ial Unicode MS","sans-serif"">Desk:=A0=A0=A0 <a href=3D"tel:=
610%20796%208392" value=3D"+16107968392" target=3D"_blank">610 796 8392</a>=
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ar=
ial Unicode MS","sans-serif"">Cell:=A0=A0=A0=A0=A0 <a href=
=3D"tel:610%20587%201759" value=3D"+16105871759" target=3D"_blank">610 587 =
1759</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:"Ar=
ial Unicode MS","sans-serif"">Email:=A0=A0
<a href=3D"mailto:john.kissinger@alvernia.edu" target=3D"_blank">john.kissi=
nger@alvernia.edu</a><u></u><u></u></span></p>
<p class=3D"MsoNormal"><u></u>=A0<u></u></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;font-family:"Ti=
mes New Roman","serif"">____________________________________=
_______________ You are subscribed to the ResNet-L mailing list.
<u></u><u></u></span></p>
<p>To subscribe, unsubscribe or search the archives, go to <a href=3D"http:=
//LISTSERV.ND.EDU/archives/resnet-l.html" target=3D"_blank">
http://LISTSERV.ND.EDU/archives/resnet-l.html</a> _________________________=
__________________________
<u></u><u></u></p>
</div>
</div>
___________________________________________________
You are subscribed to the ResNet-L mailing list.
<p>
To subscribe, unsubscribe or search the archives,
go to <a href=3D"http://LISTSERV.ND.EDU/archives/resnet-l.html" target=3D"_=
blank">http://LISTSERV.ND.EDU/archives/resnet-l.html</a>
___________________________________________________
</p></blockquote></div><br><br clear=3D"all"><div><br></div>-- <br>Chris We=
bster<br>Senior Technician<br>OIT Walk-in Center<br>North Carolina State Un=
iversity<br><br>Ph: 919.513.2676<br>Fax: 919.513.2945<br>Email: <a href=3D"=
mailto:chris.webster@ncsu.edu" target=3D"_blank">chris.webster@ncsu.edu</a>=
<br>
Web: <a href=3D"http://go.ncsu.edu/wic/" target=3D"_blank">http://go.ncsu.e=
du/wic/</a><br>
</div>
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You are subscribed to the ResNet-L mailing list.
<p>
To subscribe, unsubscribe or search the archives,
go to http://LISTSERV.ND.EDU/archives/resnet-l.html
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