[37706] in Resnet-Forum
Re: To Shape or not to shape
daemon@ATHENA.MIT.EDU (Peter P Morrissey)
Fri Nov 30 10:05:55 2012
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Message-ID: <47FE4CC0B92ADA478ECC286A11E97301264EE0@SUEX10-mbx-03.ad.syr.edu>
Date: Fri, 30 Nov 2012 15:05:10 +0000
Reply-To: Resnet Forum <RESNET-L@LISTSERV.ND.EDU>
From: Peter P Morrissey <ppmorris@syr.edu>
To: RESNET-L@LISTSERV.ND.EDU
In-Reply-To: <CCDD6FD8.1CB20%gcrary@ewu.edu>
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We have the ability to rate limit on our Cisco 6500 Internet routers. It li=
mits the bandwidth on a per IP address basis. It does it in hardware. It ge=
nerally works very well. We currently use Palo Alto for P2P blocking, and a=
re currently looking at alternatives for our next upgrade such as Procera t=
o handle more gigs of bandwidth. One benefit that we have found to blocking=
P2P is that it reduces the overall consumption of bandwidth. Whenever we h=
ave a temporary outage to the P2P blocking, we immediately see takedown not=
ices, sometimes within hours. Our experience has been that the less P2P blo=
cking we have, the tighter we have to make the per IP address rate limiting=
. Keep in mind too that students are becoming accustomed to more and more b=
andwidth at home.
Pete Morrissey
Director of Networking
Syracuse University
From: Resnet Forum [mailto:RESNET-L@LISTSERV.ND.EDU] On Behalf Of Crary, Gr=
egory
Sent: Thursday, November 29, 2012 11:57 PM
To: RESNET-L@LISTSERV.ND.EDU
Subject: To Shape or not to shape
Good evening all,
We are in the process of trying to decide whether or not to upgrade or all =
together remove our packet shaper from our residence hall network. My netw=
ork engineers are confident we can accomplish rate limiting/shaping through=
use of our core equipment, but I am not convinced removing the appliance w=
ill turn out well.
So...what are other universities using a packet shaper for and if you no lo=
nger use it, why did you remove it and what is its place?
Thanks!
Greg
--
Gregory T. Crary
Director, Customer Support Systems
Office of information Technology
Eastern Washington University
gcrary@ewu.edu<mailto:gcrary@ewu.edu> | 509.359.2375
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<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">We have the ability to ra=
te limit on our Cisco 6500 Internet routers. It limits the bandwidth on a p=
er IP address basis. It does it in hardware. It generally
works very well. We currently use Palo Alto for P2P blocking, and are curr=
ently looking at alternatives for our next upgrade such as Procera to handl=
e more gigs of bandwidth. One benefit that we have found to blocking P2P is=
that it reduces the overall consumption
of bandwidth. Whenever we have a temporary outage to the P2P blocking, we =
immediately see takedown notices, sometimes within hours. Our experience ha=
s been that the less P2P blocking we have, the tighter we have to make the =
per IP address rate limiting. Keep
in mind too that students are becoming accustomed to more and more bandwid=
th at home.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">Pete Morrissey<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">Director of Networking
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">Syracuse University<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";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>Crary, Gregory<br>
<b>Sent:</b> Thursday, November 29, 2012 11:57 PM<br>
<b>To:</b> RESNET-L@LISTSERV.ND.EDU<br>
<b>Subject:</b> To Shape or not to shape<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<div>
<div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black">Good evening all,<o:p></o:p=
></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black"><o:p> </o:p></span></p=
>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black">We are in the process of tr=
ying to decide whether or not to upgrade or all together remove our packet =
shaper from our residence hall network. My network engineers
are confident we can accomplish rate limiting/shaping through use of our c=
ore equipment, but I am not convinced removing the appliance will turn out =
well.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black"><o:p> </o:p></span></p=
>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black">So…what are other uni=
versities using a packet shaper for and if you no longer use it, why did yo=
u remove it and what is its place?<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black"><o:p> </o:p></span></p=
>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black">Thanks!<o:p></o:p></span></=
p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black">Greg<o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black">--<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black">Gregory T. Crary<o:p></o:p>=
</span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black">Director, Customer Support =
Systems<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black">Office of information Techn=
ology<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black">Eastern Washington Universi=
ty<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black"><a href=3D"mailto:gcrary@ew=
u.edu">gcrary@ewu.edu</a> | 509.359.2375<o:p></o:p></span></p>
</div>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:"Ca=
libri","sans-serif";color:black"><o:p> </o:p></span></p=
>
</div>
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