how-to block ads
DrDrewSo that others may surf.
|reply to Mele20 |
Re: Require DOCSIS 3 modem?
I wouldn't trust most managers to know how the DOCSIS 3 CMTS installed is actually configured. Now if it was the CMTS Engineer who configured the CMTS or headend tech who knows how it's configured, that's a different story. The only "concrete proof" would be a copy of a config file sent to your modem and/or the CMTS configs your modem is attached to, an email from some anonymous manager isn't either.
CMTS configurations are much more complicated than just DOCSIS 1 on or off, DOCSIS 2 on or off, or DOCSIS 3 on or off. The CMTS can run multiple channels with multiple configurations and dynamically switch between them. A modem can be switched on the fly from DOCSIS 1 to DOCSIS 2 to DOCSIS 3 depending on what the CMTS negotiates with the modem and the capabilities of the modem.
The CMTS may be running 6.4 Mhz upstream channels, 32QAM or 64QAM upstream channels, ATDMA or SCDMA upstream modulation, advanced upstream equalization, or some of the other features allowed by DOCSIS 2 protocols. Some of those features are visible to end users through the modem diagnostic pages (such as upstream channel characteristics), while others aren't.
My modem in TWC land switches between DOCSIS 1 channels and wider DOCSIS 2 channels as the CMTS tells it and I wouldn't know unless I saw it in the diagnostic pages. When I connect a DOCSIS 3 modem, it bonds a few of those channels and goes into DOCSIS 3 mode. If I connect a DOCSIS 1.1 modem, the DOCSIS 3 CMTS is still there and the modem only connects to the DOCSIS 1 upstream channels, but I still get some benefit from the DOCSIS 3 CMTS such as multiple channels the modem can switch between.
Companies (TWC or otherwise) don't normally install multiple $150k+ specialized routers only to turn off all the features that were paid for in the upgrade over the model it replaced.
TWC also doesn't seem to normally push config files that handicap modem features to less than what the CMTS tells it is available and can use, it makes configuring it on the CMTS pretty useless. I've never heard or read TWC pushing config files that instruct DOCSIS 2 modems to ignore DOCSIS 2 channels being offered by the CMTS. Modem bootfiles also can't enable non-existent features on a modem. A modem config file trying to enable DOCSIS 2 features will be ignored on a DOCSIS 1 modem, same for DOCSIS 3 features on lesser modems. The same goes for higher level DOCSIS protocol messages sent from the CMTS to lower level modems.
Anyway, you still have a DOCSIS 2 modem with DOCSIS 2 firmware connected to a DOCSIS 3 CMTS and there never was a DOCSIS 1.5. You're getting benefits from that DOCSIS 3 CMTS whether you realize it or not.
If it's important, back it up... twice. Even 99.999% availability isn't enough sometimes.
I fully trust the persons (more than one...more than one position at Oceanic both here in Hilo and on Oahu - plant head, technical head, etc several of whom I have personally known (and been friends with) for as long as 37 years (since we first got cable in my building). I don't believe for one minute that they are lying and you, who don't even live in Hawaii, know more about Oceanic than they do.
When governments fear people, there is liberty. When the people fear the government, there is tyranny. Thomas Jefferson
Well, with the recent changes that TWC has been trying to push it seems that they are trying to consolidate their Internet plans on a nationwide basis, at least in all the territories that they operate including your Oceanic group. If TWC has a hand in it, like the Oceanic group as you say, they will most likely end up being pressed into changes that TWC has been pushing to other territories that they run. This will include standardizing the hardware and configurations used in all of their footprints including all the headend equipment, CMTS, and node hardware in the field.
What does this mean for you as an Oceanic customer? Probably a more consistent service lineup that is more inline with the rest of the TWC company. Other territories are starting to allow users to own their own cable modems minus support for them. Most likely you will see the same option to do so in the future with the consolidation that they are trying to do across their markets.
I've tried to stay civil in this conversation and maintain my posts with facts, nothing else.
Boycott AT&T uVerse! | Tom's Android Blog | Galaxy Nexus LiquidSmooth by TeamLiquid
DrDrewSo that others may surf.
|reply to Mele20 |
Pay attention to your modem's data channels, I'm sure you'll find them changing occasionally. When it does make a note of the channel ID, frequencies, modulation type, and symbol rate.
Look for upstream modulations of 8, 32, or 64 QAM; symbol rates of 5120, and/or ATDMA or SCDMA modulation. Any of that is a sure sign of DOCSIS 2 being used.
BTW, I never said the people you were talking to were lying, I said I wouldn't trust them to know.
KonaguyLive From Kailua-Kona, HawaiiPremium
Kailua Kona, HI
I highly doubt Oceanic would have all their subscribers turn in their modems for a DOCSIS 3.0 compatible modem. Most subscribers here are still on DOCSIS 1.1, so it would be a nightmare to force everyone to switch all at once.
Oceanic is buying solely DOCSIS 3.0 modems from now on. I believe they'll replace these modems whenever subscribers upgrade, etc.