[ale] Comcast cable modem - incompatible?

[jcpilman at gmail.com]

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-keywords=SB6120&x=0&y=0
> >>
> >> --
> >> Paul Cartwright
> >> Registered Linux user # 367800
> >> Registered Ubuntu User #12459
> >> http://usdebtclock.org/
> >>
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