[37669] in Resnet-Forum
Re: Survey of Wireless Bandwidth for 2012
daemon@ATHENA.MIT.EDU (Chris Davis)
Mon Nov 19 10:42:44 2012
Content-Language: en-US
Content-Type: multipart/alternative; boundary="_000_AFF7E56B606814458FDD73793322334932982646SVEXCMB01princi_"
MIME-Version: 1.0
Message-ID: <AFF7E56B606814458FDD73793322334932982646@SV-EXCMB-01.principia.local>
Date: Wed, 14 Nov 2012 19:34:20 +0000
Reply-To: Resnet Forum <RESNET-L@LISTSERV.ND.EDU>
From: Chris Davis <Chris.Davis@PRIN.EDU>
To: RESNET-L@LISTSERV.ND.EDU
In-Reply-To: <D801D298-FBC9-4666-A5A4-3AE12BE64CC9@mail.sdsu.edu>
--_000_AFF7E56B606814458FDD73793322334932982646SVEXCMB01princi_
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Popak. I pulled some data like this a few months ago in an educause email =
list. What it came down to as I saw it was the following.
It seems the sweet spot for user:megbit ratio is about 4:1. I also receive=
d several reports of folks having very good performance with ratios as high=
as 12:1. A couple even higher. We are at 6:1 and 9:1 on my 2 campuses. =
But all of these sites also relied on a bandwidth management device of some=
type as well. I was doing this in the midst of shopping for a new bandwid=
th manager as well. We moved from using a Bluecoat Packetshaper to an AP =
Connections NetEqualizer. I have been unconvinced that deep packet inspect=
ion will be able to cope with bandwidth and the encryption issues with mana=
ging and identifying (and prioritizing) bandwidth by flows. I was introduc=
ed to the equalization concept, and while it sounded great, I was unconvinc=
ed at first. But a colleague at another college convinced me to take a tes=
t drive. We implemented the units which are incredibly easy to manage, and=
they've done a great job of locking down P2P traffic and equalizing bandwi=
dth so that huge downloads don't punish light traffic browsers. The large =
processes still get time, just not the lion's share as they would if things=
were unmanaged.
I know, I sound like a commercial. In parting, I say, get an eval. Give=
it a test drive.
Number of residents: about 900 per campus.
We don't really split out residential from academic. 100 Mbps and 150Mbps
We use about as much as we have. But it's not quite like it was before we =
upgraded bw. At one point we were 95% from 6am to 11pm. My 100Mbps campus=
is between 65 and 75 consistent but does peak higher. My other campus is =
usually at 120Mbps or so. I have the neteq to kick in when we hit 90% util=
ization. We do hit that pretty regularly.
We use a nac on one campus, but just for access control. No bandwidth. Bu=
t we do have NetEqualizers at each campus.
Chris
Chris Davis
CIS Security Director
The Principia
From: Resnet Forum [mailto:RESNET-L@LISTSERV.ND.EDU] On Behalf Of Popak Ros=
han
Sent: Wednesday, November 14, 2012 12:59 PM
To: RESNET-L@LISTSERV.ND.EDU
Subject: Survey of Wireless Bandwidth for 2012
Hi All,
Would you guys be kind enough and fill out this survey for me? I am trying =
to compare our usage with other campuses and find out what kind of manageme=
nt system is being used. We have a 1 Gbps pipe to our halls for 3500 studen=
ts and it seems it is getting filled up sooner or later.
Number of residents:
Total BandWidth for residential halls:
Maximum usage during peak hours:
Do you use any NAC or Traffic Management device:
Thank you very much,
Popak Roshan
System Administrator
Office of Housing Administration,SDSU
(619)5944607
___________________________________________________ You are subscribed to t=
he 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
___________________________________________________
--_000_AFF7E56B606814458FDD73793322334932982646SVEXCMB01princi_
Content-Type: text/html; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
<html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr=
osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:=
//www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"=
>
<meta name=3D"Generator" content=3D"Microsoft Word 14 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Papyrus;
panose-1:3 7 5 2 6 5 2 3 2 5;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:Papyrus;
color:#1F497D;
font-weight:normal;
font-style:normal;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=3D"EN-US" link=3D"blue" vlink=3D"purple">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D">Popak. I pulled some data like this =
a few months ago in an educause email list. What it came down to as I=
saw it was the following.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D">It seems the sweet spot for user:megbit ra=
tio is about 4:1. I also received several reports of folks having ver=
y good performance with ratios as high as 12:1. A couple even
higher. We are at 6:1 and 9:1 on my 2 campuses. But all of the=
se sites also relied on a bandwidth management device of some type as well.=
I was doing this in the midst of shopping for a new bandwidth manage=
r as well. We moved from using a Bluecoat Packetshaper
to an AP Connections NetEqualizer. I have been unconvinced that deep=
packet inspection will be able to cope with bandwidth and the encryption i=
ssues with managing and identifying (and prioritizing) bandwidth by flows.&=
nbsp; I was introduced to the equalization
concept, and while it sounded great, I was unconvinced at first. But=
a colleague at another college convinced me to take a test drive. We=
implemented the units which are incredibly easy to manage, and they’=
ve done a great job of locking down P2P traffic
and equalizing bandwidth so that huge downloads don’t punish light t=
raffic browsers<a name=3D"_MailEndCompose">. The large processes stil=
l get time, just not the lion’s share as they would if things were un=
managed.
<o:p></o:p></a></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D">I know, I sound like a commercial.&n=
bsp; In parting, I say, get an eval. Give it a test drive. =
;
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D">Number of residents: about 900 per c=
ampus.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D">We don’t really split out residentia=
l from academic. 100 Mbps and 150Mbps
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D">We use about as much as we have. But=
it’s not quite like it was before we upgraded bw. At one point=
we were 95% from 6am to 11pm. My 100Mbps campus is between 65 and 75=
consistent
but does peak higher. My other campus is usually at 120Mbps or so.&n=
bsp; I have the neteq to kick in when we hit 90% utilization. We do h=
it that pretty regularly.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D">We use a nac on one campus, but just for a=
ccess control. No bandwidth. But we do have NetEqualizers at ea=
ch campus.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div style=3D"mso-element:para-border-div;border:none;border-bottom:solid w=
indowtext 1.0pt;padding:0in 0in 1.0pt 0in">
<p class=3D"MsoNormal" style=3D"border:none;padding:0in"><span style=3D"fon=
t-family:"Calibri","sans-serif";color:#1F497D">Chris<o:=
p></o:p></span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D">Chris Davis
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D">CIS Security Director<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-family:"Calibri","=
;sans-serif";color:#1F497D">The Principia<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:Papyrus;=
color:#1F497D"><o:p> </o:p></span></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:RESNET-L@LISTSERV.ND.EDU]
<b>On Behalf Of </b>Popak Roshan<br>
<b>Sent:</b> Wednesday, November 14, 2012 12:59 PM<br>
<b>To:</b> RESNET-L@LISTSERV.ND.EDU<br>
<b>Subject:</b> Survey of Wireless Bandwidth for 2012<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Hi All,<o:p></o:p></p>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Would you guys be kind enough and fill out this surv=
ey for me? I am trying to compare our usage with other campuses and find ou=
t what kind of management system is being used. We have a 1 Gbps pipe to ou=
r halls for 3500 students and it seems
it is getting filled up sooner or later.<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Number of residents:<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Total BandWidth for residential halls:<o:p></o:p></p=
>
</div>
<div>
<p class=3D"MsoNormal">Maximum usage during peak hours:<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Do you use any NAC or Traffic Management device:<o:p=
></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal">Thank you very much,<o:p></o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:13.5pt;font-family:"He=
lvetica","sans-serif";color:black">Popak Roshan<o:p></o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:13.5pt;font-family:"He=
lvetica","sans-serif";color:black">System Administrator<o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:13.5pt;font-family:"He=
lvetica","sans-serif";color:black">Office of Housing Adminis=
tration,SDSU<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:13.5pt;font-family:"He=
lvetica","sans-serif";color:black">(619)5944607<o:p></o:p></=
span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:13.5pt;font-family:"He=
lvetica","sans-serif";color:black"><o:p> </o:p></span><=
/p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><o:p> </o:p></p>
</div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
<p class=3D"MsoNormal">___________________________________________________ =
You are subscribed to the ResNet-L mailing list.
<o:p></o:p></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> _________________________=
__________________________<o:p></o:p></p>
</div>
</body>
</html>
___________________________________________________
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>
___________________________________________________
--_000_AFF7E56B606814458FDD73793322334932982646SVEXCMB01princi_--
