[ale] Comcast cable modem - incompatible?

[Lightner, Jeff]

This thread somehow turned into a merits of DOCSIS 3.0 thread which is
NOT at all what I asked.   I made it clear that I could guess it had to
do with DOCSIS 3.0/DOCSIS 2.0 and also that the website I found at
Comcast made it clear that both are supported and that my modem supports
DOCSIS 2.0.

 

My question was if anyone knew what was happening on Oct 12th that makes
Comcast give me different messages about whether my modem is supported
or not after that date.   From the responses it appears the answer is:
No one knows.    That's not surprising given that Comcast itself doesn't
seem to know.

 

________________________________

From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of
jcpilman at gmail.com
Sent: Tuesday, October 05, 2010 7:45 AM
To: Atlanta Linux Enthusiasts - Yes! We run Linux!
Subject: Re: [ale] Comcast cable modem - incompatible?

 

A quick look at the first few google hits for DOCSIS says that all four
versions are fully forward and backward compatible.

On Sat, Oct 2, 2010 at 2:25 PM, Michael Trausch <mike at trausch.us> wrote:

Comcast is gradually migrating their entire network to do DOCSIS 3, as
well as IPv6.  I'd suspect that one of the reasons that they want
newer modems on the network is the ability to acquire IPv6 addresses
on the Comcast network.  Their trials are going well, from what I have
seen.

I've been on DOCSIS 3 service since just before the start of 2010, and
I have to say that I am really liking it.  I am not getting the 70Mbps
that I used to, as that was something that I got as part of the trial
that we were in when I was in Dunwoody, but I have 30Mbps.  I could
get the faster one, but I'm not willing to pay that much extra.  :-)

In any case, I'd recommend getting a new DOCSIS 3 modem anyway.  The
SB5100 series is getting pretty dated...

  --- Mike


On Sat, Oct 2, 2010 at 1:43 PM, Kaerka Phillips <kbphillips80 at gmail.com>
wrote:
> I wonder if that is just the Atl market which Comcast is taking to
DOCSIS
> 3.0 - I use Comcast in the DC area and also have a SB5100 - a SB5101
in my
> case.
>
> On Sat, Oct 2, 2010 at 1:12 PM, Paul Cartwright <ale at pcartwright.com>
wrote:
>>
>> On Sat October 2 2010, Lightner, Jeff wrote:
>> > I don't think Comcast is just trying to get me to lease a new modem
as
>> > the
>> > letter says I can buy one at a retailer.  I've already priced
>> > replacements
>> > that do DOCSIS 3.0 (e.g. SB6120) that are listed as compatible on
their
>> > site.   However, without them being able to give me good
information I'm
>> > loathe to do that because they can't tell me why the current modem
isn't
>> > adequate or why there is a need for a change on Oct 12th in the
first
>> > place.
>>
>> wouldn't you want a modem that can do DOCSIS 3.0 ? it says up to 4
times
>> faster than DOCSIS 2.0...
>> I see one on Amazon for $80:
>>
>> Motorola SB6120 SURFboard DOCSIS 3.0 eXtreme Broadband Cable Modem by
>> Motorola
>> Buy new:  $80.73
>>
>>
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keyw
ords=SB6120&x=0&y=0
>>
>> --
>> Paul Cartwright
>> Registered Linux user # 367800
>> Registered Ubuntu User #12459
>> http://usdebtclock.org/
>>
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