David, No, sorry to say, but you can't upgrade via firmware. New docsis 3.0 uses something of a MIMO-kind of muxing of multiple upstream/downstream channels, much the way 802.11n does, or some of the bastard hack variants of 802.11g do for "speed boost" resulting in increased bandwidth. This requires more granular/precise clocking, faster processing, whole new chipsets, and a gigabit ethernet port (150mb/s theoretical max downstream) to achieve this. The only modem I know of on the market currently is the Motorola Surfboard 6120, which frys sells for around 90 bucks.
If I'm not mistaken, I think 2.0 is good to around 12-15mb/s tiers because it does some channel-bonding itself, just not to the level to get the 25mb/s down cox is starting to roll out, or the 50mb/s charter/comcast are on the east cost. -mb On Tue, 2009-07-28 at 17:19 -0700, David Munson wrote: > Anyone know if existing 2.0 compliant cable modems can be updated to > support 3.0 (presumably via firmware), or will I have to get a new > cable modem once 3.0 is rolled out in my area? > > I have a Linksys BEFCMU10 cable modem and it's served me well for the > past 5 years, but I haven't seen anything from Linksys (geared for > home use, anyway) that's DOCSIS 3.0 compliant. > > On Tue, Jul 28, 2009 at 2:03 PM, Michael Butash <mich...@butash.net> > wrote: > Most any will work, just avoid the really cheap/off-brand ones > (best-data frys specials are known by cox to have issues with > latest > infrastructure code, now unsupported). I'd recommend making > sure it's > at least docsis 2.0 capable, and if you want the really high > tiers of > service (15mb+) get a motorola 6120, as they support docsis > 3.0 which is > rolling out now. > > -mb > > > > On Tue, 2009-07-28 at 12:54 -0700, Jason Holtzapple wrote: > > mike havens wrote: > > > that was probably a stupid quesxtion; is a cable modem a > cable modem... > > > meaning any of them will work on any system? > > > > If cox is the provider, they have a supported list: > > > > http://support.cox.com/sdccommon/asp/contentredirect.asp > > > > I have and use a Motorola SB5101 and have no issues. > > > > --Jason > > > > > > --------------------------------------------------- > > PLUG-discuss mailing list - > PLUG-discuss@lists.plug.phoenix.az.us > > To subscribe, unsubscribe, or to change your mail settings: > > > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > > --------------------------------------------------- > PLUG-discuss mailing list - > PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > > --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
