nt for any school's emergency preparedness plans, and I wouldn't trust it t=
o a carrier like Comcast who have no idea how to maintain proper SLA's or p=
rovide timely response on critical issues. The first time you have a line =
cut, you'll regret giving up your T-1. I'd do as he suggests - keep the T-=
1 for voice and failover data, and get the Comcast data connection (at a ch=
eaper price) to replace your DSL circuit.
Also, be aware that Comcast voice is essentially VoIP to the CO, which will=
affect modem and fax usage. Our experiments with VoIP using a telco carri=
er revealed significant faxing issues.
S
-----Original Message-----
From: A forum for independent school educators [mailto:ISED-L@LISTSERV.SYR.=
EDU] On Behalf Of Jason Johnson
Sent: Friday, February 26, 2010 4:49 PM
To: ISED-L@LISTSERV.SYR.EDU
Subject: Re: Cable broadband and voice - feedback/guidance?
I would drop the voice=A0from the=A0Comcast offer and see if you can get th=
em to under=A0$100/month and use them to replace your Verizion DSL.
Sort of answering your questions:
1.=A0 50MB is maximum you mileage will vary considerably and there is know =
why to really know until you sign the contract.=A0 The advantage of a T-1 i=
s=A0that it is=A0yours, end-to-end with guaranteed speed, and it is connect=
to very=A0fat pipes on the other end (where as=A0Comcast's grow larger in =
progression.=A0 Additionally, we know Comcast and other providers do traffi=
c shaping that slow down certain types of data and users based on rules the=
y do not publish.=A0 Until Net Neutrality rules are beefed up this will not=
change.
2.=A0 There are security issues, but the are different from what you sugges=
t.=A0=A0T-1 providing phone service to a school is critical infrastructure =
and=A0you are going to get immediate response from your provider=A0and you =
will generally=A0encounter higher quality repair and technical services fol=
ks on the ground (if not on the phone) meaning more security and piece of m=
ind for the school.=A0 In cases of natural disasters (e.g. flood, ice storm=
, etc.) your T-1 will typically be brought up well before your cable.=A0 I =
wouldn't worry too much about shared line from a security perspective.
3.=A0 DC is supposed to be getting FiOS (with similar issues) next year and=
Comcast is already rolling out 100MB services and testing 200MB fiber.____=
________________________
Jason at jasonpj@yahoo.com=20
----- Original Message ----
From: JPDS Tech <techpurchases@jpds.org>
To: ISED-L@LISTSERV.SYR.EDU
Sent: Fri, February 26, 2010 1:44:19 PM
Subject: Cable broadband and voice - feedback/guidance?
We are being wooed by Comcast.=A0 They are offering a 50 MBPS connection, w=
ith
nine phone lines for about $500/month for a three-year contract.=A0 This is
very tempting because it would be less expensive and much greater bandwidth
than we currently have.=A0 Right now we use a single T1 (9 pairs are
priority-voice but bounce to data when not being used) supplemented by a
Verizon business DSL (peak < 7 MBPS down).=A0=20
We're located in D.C. which limits our options somewhat.=A0 For example, FI=
OS
is not available.
QUESTIONS:
*> Do you currently, or have you previously, used Comcast or another cable
provider for your school Internet?
*> Do you have reason to warn us away from doing business with them?=A0 I h=
ave
a generally low opinion of ALL the major ISPs but it is hard to avoid them.
*> I've been warned that voice-over-cable quality can deteriorate if the
packets aren't isolated.=A0 Do any of you know about this?=A0=20
*> I understand that cable throughput speeds can vary greatly.=A0 Any words=
of
advice / things I should be able to ask the cable company for?=A0=20
*> Are there potential security/privacy issues?=A0 I have been told that
cables are shared lines.
*> Is something else even faster coming out in the next year that we should
wait for?
Any and all help would be most appreciated.
Dan Berger
Jewish Primary Day School of the Nation's Capital
[ For info on ISED-L see https://www.gds.org/podium/default.aspx?t=3D128874=
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