[25841] in resnet
Re: CATV and internet bandwidth
daemon@ATHENA.MIT.EDU (Doughty, Marc)
Wed Jan 26 16:36:43 2011
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary=90e6ba476af5d81879049ac69f59
Message-ID: <AANLkTinwtrzvb+D-_ch+fyR71vBn843YqiyMg+UMaNdc@mail.gmail.com>
Date: Wed, 26 Jan 2011 16:36:22 -0500
Reply-To: Resnet Forum <RESNET-L@listserv.nd.edu>
From: "Doughty, Marc" <marc_doughty@brown.edu>
To: RESNET-L@listserv.nd.edu
In-Reply-To: <4F5F31A69D45B746B439BDA98B62378D8FC2F656EF@EXCMS.msu.montana.edu>
--90e6ba476af5d81879049ac69f59
Content-Type: text/plain; charset=ISO-8859-1
Greetings,
Like I said, I'm not involved, but our infrastructure is pretty
standard: 100Mbit to the clients, with 1Gbit redundant fibers between
switches and the rest of the network. We do use have multicast set up for
dorm networks, so I think there's only one 'stream' of data traversing the
internal firewall. It might be one stream per channel being watched, I'm not
clear how the system works.
I do know that SD video is low-bandwidth (1-4Mbits/sec), 1080p video
compressed with h.264 is between 5-20mbits/sec... So even the worst-case
scenario should be well within the limits of a network where the switches
are uplinked via gigabit.
- Marc Doughty
- Apple and Microsoft Certified
- Open-Source Enlightened
- Marc_Doughty@brown.edu
"POLITICS, n. A strife of interests masquerading as a contest of
principles." - Ambrose Bierce
On Wed, Jan 26, 2011 at 4:14 PM, Crowe, Sheila <sheila@montana.edu> wrote:
> Marc, do you know what the effect was on your bandwidth when you switched
> to IPTV?
>
>
>
> *From:* Resnet Forum [mailto:RESNET-L@LISTSERV.ND.EDU] *On Behalf Of *Doughty,
> Marc
> *Sent:* Wednesday, January 26, 2011 1:45 PM
>
> *To:* RESNET-L@LISTSERV.ND.EDU
> *Subject:* Re: CATV and internet bandwidth
>
>
>
> I'm not involved with it, but we switched over to IPTV several years ago.
> Students can rent an IPTV-to-TV converter for use on 'real' televisions.
>
>
> http://www.brown.edu/cis/services/television/iptv/index.php
>
>
> - Marc Doughty
> - Apple and Microsoft Certified
> - Open-Source Enlightened
> - Marc_Doughty@brown.edu
>
> "POLITICS, n. A strife of interests masquerading as a contest of
> principles." - Ambrose Bierce
>
> On Wed, Jan 26, 2011 at 1:12 PM, James Ellis <jellis@culver.edu> wrote:
>
> Greetings,
>
> I've been asked to see what other locations are doing in terms of CableTV
> and related internet bandwidth for students.
>
> We currently have a head-end structure with rigid coax between buildings
> and service from DirecTV. The equipment in place allows us to distribute an
> analog signal in standard definition. We are looking to upgrade our setup,
> and are considering several options. Does anyone still have a head-end
> structure? Do you get service from the internet or satellite? If by
> internet, then how much bandwidth is this consuming? Do you offer HD
> services to students? Do you distribute internally via ethernet or coax?
>
> I assume others, like us, have seen a rise in internet offerings such as
> NetFlix and Hulu for student entertainment. Has this caused a noticeable
> increase in traffic? Does anyone shape this traffic, only allow it during
> certain times, or is your bandwidth sufficient enough to handle the traffic?
>
> Any comments or insights would be appreciated.
>
> Thanks!
>
> James Ellis
>
> Culver-Stockton College
> 1 College Hill
> Canton, MO 63435 ___________________________________________________ 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___________________________________________________
> ___________________________________________________ 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
___________________________________________________
--90e6ba476af5d81879049ac69f59
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Greetings,<br>=A0=A0=A0=A0 Like I said, I'm not involved, but our infra=
structure is pretty standard: 100Mbit to the clients, with 1Gbit redundant =
fibers between switches and the rest of the network. We do use have multica=
st set up for dorm networks, so I think there's only one 'stream=
9; of data traversing the internal firewall. It might be one stream per cha=
nnel being watched, I'm not clear how the system works.<br>
=A0=A0=A0=A0 I do know that SD video is low-bandwidth (1-4Mbits/sec), 1080p=
video compressed with h.264 is between 5-20mbits/sec... So even the worst-=
case scenario should be well within the limits of a network where the switc=
hes are uplinked via gigabit.<br>
<br>- Marc Doughty<br>=A0 - Apple and Microsoft Certified<br>=A0 - Open-Sou=
rce Enlightened<br>- <a href=3D"mailto:Marc_Doughty@brown.edu">Marc_Doughty=
@brown.edu</a><br><br>"POLITICS, n. A strife of interests masquerading=
as a contest of principles." - Ambrose Bierce<br>
<br><br><div class=3D"gmail_quote">On Wed, Jan 26, 2011 at 4:14 PM, Crowe, =
Sheila <span dir=3D"ltr"><<a href=3D"mailto:sheila@montana.edu">sheila@m=
ontana.edu</a>></span> wrote:<br><blockquote class=3D"gmail_quote" style=
=3D"margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); p=
adding-left: 1ex;">
<div link=3D"blue" vlink=3D"purple" lang=3D"EN-US"><div><p class=3D"MsoNorm=
al"><span style=3D"font-size: 11pt; color: rgb(31, 73, 125);">Marc, do you =
know what the effect was on your bandwidth when you switched to IPTV?=A0 </=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size: 11pt; color: rgb(31, 73, 1=
25);">=A0</span></p><div style=3D"border-width: 1pt medium medium; border-s=
tyle: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color=
-moz-use-text-color; padding: 3pt 0in 0in;">
<p class=3D"MsoNormal"><b><span style=3D"font-size: 10pt;">From:</span></b>=
<span style=3D"font-size: 10pt;"> Resnet Forum [mailto:<a href=3D"mailto:RE=
SNET-L@LISTSERV.ND.EDU" target=3D"_blank">RESNET-L@LISTSERV.ND.EDU</a>] <b>=
On Behalf Of </b>Doughty, Marc<br>
<b>Sent:</b> Wednesday, January 26, 2011 1:45 PM<div class=3D"im"><br><b>To=
:</b> <a href=3D"mailto:RESNET-L@LISTSERV.ND.EDU" target=3D"_blank">RESNET-=
L@LISTSERV.ND.EDU</a><br></div><div class=3D"im"><b>Subject:</b> Re: CATV a=
nd internet bandwidth</div>
</span></p></div><p class=3D"MsoNormal">=A0</p><p class=3D"MsoNormal" style=
=3D"margin-bottom: 12pt;">I'm not involved with it, but we switched ove=
r to IPTV several years ago. Students can rent an IPTV-to-TV converter for =
use on 'real' televisions.</p>
<div><div></div><div class=3D"h5"><br><br><a href=3D"http://www.brown.edu/c=
is/services/television/iptv/index.php" target=3D"_blank">http://www.brown.e=
du/cis/services/television/iptv/index.php</a><br><br clear=3D"all"><br>- Ma=
rc Doughty<br>
=A0 - Apple and Microsoft Certified<br>=A0 - Open-Source Enlightened<br>- <=
a href=3D"mailto:Marc_Doughty@brown.edu" target=3D"_blank">Marc_Doughty@bro=
wn.edu</a><br><br>"POLITICS, n. A strife of interests masquerading as =
a contest of principles." - Ambrose Bierce<br>
<br></div></div><div><div></div><div class=3D"h5"><div><p class=3D"MsoNorma=
l">On Wed, Jan 26, 2011 at 1:12 PM, James Ellis <<a href=3D"mailto:jelli=
s@culver.edu" target=3D"_blank">jellis@culver.edu</a>> wrote:</p><p clas=
s=3D"MsoNormal">
Greetings,<br>=A0<br>I've been asked to see what other locations are do=
ing in terms of CableTV and related internet bandwidth for students.<br>=A0=
<br>We currently have a head-end structure with rigid coax between building=
s and service from DirecTV. The equipment in place allows us to distribute =
an analog signal in standard definition. We are looking to upgrade our setu=
p, and are considering several options. Does anyone still have a head-end s=
tructure? Do you get service from the internet or satellite? If by internet=
, then how much bandwidth is this consuming? Do you offer HD services to st=
udents? Do you distribute internally via ethernet or coax?<br>
=A0<br>I assume others, like us, have seen a rise in internet offerings suc=
h as NetFlix and Hulu for student entertainment. Has this caused a noticeab=
le increase in traffic? Does anyone shape this traffic, only allow it durin=
g certain times, or is your bandwidth sufficient enough to handle the traff=
ic?<br>
=A0<br>Any comments or insights would be appreciated.<br>=A0<br>Thanks!<br>=
=A0<br>James Ellis<br>=A0<br>Culver-Stockton College<br>1 College Hill<br>C=
anton, MO=A0 63435 ___________________________________________________ You =
are subscribed to the ResNet-L mailing list. </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> ________________________________________=
___________ </p>
</div><p class=3D"MsoNormal"><br>__________________________________________=
_________ You are subscribed to the ResNet-L mailing list. </p><p>To subscr=
ibe, unsubscribe or search the archives, go to <a href=3D"http://LISTSERV.N=
D.EDU/archives/resnet-l.html" target=3D"_blank">http://LISTSERV.ND.EDU/arch=
ives/resnet-l.html</a> ___________________________________________________ =
</p>
</div></div></div></div><div><div></div><div class=3D"h5">_________________=
__________________________________
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></div></div></blockquote></div><br>
___________________________________________________
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
___________________________________________________
--90e6ba476af5d81879049ac69f59--
