Atlantic Broadband DOCSYS 3.1

koolmun

New Member
Just received a letter from Atlantic saying I should upgrade my modem to DOCSYS 3.1.

Does anyone know if this offers a significant speed upgrade? I don't have any problem with my current speed, 60 Mbps down, 5 Mbps up.
 

ASBrooks88

New Member
I returned my modem, and shopped for allowable modems on Amazon. Saved the rental and other fees associated with Atlantic. And cheaper in the long run, and a much better modem
 

jazz lady

~*~ Rara Avis ~*~
PREMO Member
It is the acronym for Data Over Cable Service Interface Specification (DOCSIS). Unless you have a high speed plan (500 Mbps and 1 Gbps speeds) that streams a lot or are a heavy gamer, you don't need the greater speed allowed with DOCSIS 3.1 - yet. This version has been around since 2013 but 3.0 is still the standard. First and foremost, it is more expensive and, unless you really need it, it is a waste of money.




ABB has rolled out Gigabyte Service in Maryland in a select few markets. I don't see it coming down here anytime soon.

 

SamSpade

Well-Known Member
I returned my modem, and shopped for allowable modems on Amazon. Saved the rental and other fees associated with Atlantic. And cheaper in the long run, and a much better modem

Might I ask - which one did you choose?

My concern is that I don't think any of their "allowable" modems have VOIP, which means I can't use the phone part of our bundle if I replace it.
 

BernieP

Resident PIA
Might I ask - which one did you choose?

My concern is that I don't think any of their "allowable" modems have VOIP, which means I can't use the phone part of our bundle if I replace it.
VoIP has no direct connection to DOCSIS. DOCSIS controls the conversion of the analog wave form to digital.
VoIP is the way voice is encoded in an IP packet. The only thing that matters is that the modem can modulate and demodulate the signals on the cable.

I would only caution that sometimes when a standard is backwards compatible, the implementation doesn't always make it so.
Typically 3.1 would still work for 3,0 modems, but ABB might implement it in such a way as it won't.
 

SamSpade

Well-Known Member
VoIP has no direct connection to DOCSIS. DOCSIS controls the conversion of the analog wave form to digital.
VoIP is the way voice is encoded in an IP packet. The only thing that matters is that the modem can modulate and demodulate the signals on the cable.

I would only caution that sometimes when a standard is backwards compatible, the implementation doesn't always make it so.
Typically 3.1 would still work for 3,0 modems, but ABB might implement it in such a way as it won't.
Thanks but I was asking because I would like to replace my modem rather than rent it every month. None of their listed replacements will do the phone, DOCSIS notwithstanding.
 

Goldenhawk

Well-Known Member
Buy an Ooma. I have had Ooma VOIP for five or six years with Metrocast/ABB and it works just perfectly.
 

Goldenhawk

Well-Known Member
When I replaced my modem a year ago, my research indicated that the 3.1 offered no benefits down here in SoMD at the service tiers we get. 3.0 is just fine and a lot cheaper, and I have been very happy with the speed I get (100 down, 5 up). Also, be sure to pay attention to the list of approved modems; there are some at Best Buy that you should NOT buy, as they have known buggy firmware and are therefore much slower than advertised.
 

Clem72

Well-Known Member
Just received a letter from Atlantic saying I should upgrade my modem to DOCSYS 3.1.

Does anyone know if this offers a significant speed upgrade? I don't have any problem with my current speed, 60 Mbps down, 5 Mbps up.

DOCSIS 3.0 allows for up to 200mbit. If you are on the 60mbit plan (which is the cheapest/slowest one, right?) there is little chance they will upgrade you beyond 200mbit speeds before they want everyone to upgrade to DOCSIS 4.0.

Don't bother.
 

warneckutz

Well-Known Member
I have the 400Mb plan and used to run it through a 3.0 DOCSIS Netgear modem (500Mb max). Upgraded to a 3.1 DOCSIS Netgear (1 Gig max). Definitely noticed less issues when using multiple items pulling the signal through the router, for whatever that's worth.
 

PeoplesElbow

Well-Known Member
I have the 400Mb plan and used to run it through a 3.0 DOCSIS Netgear modem (500Mb max). Upgraded to a 3.1 DOCSIS Netgear (1 Gig max). Definitely noticed less issues when using multiple items pulling the signal through the router, for whatever that's worth.
That's a lot of porn!
 

Clem72

Well-Known Member
I have the 400Mb plan and used to run it through a 3.0 DOCSIS Netgear modem (500Mb max). Upgraded to a 3.1 DOCSIS Netgear (1 Gig max). Definitely noticed less issues when using multiple items pulling the signal through the router, for whatever that's worth.

I quoted 200mbit as it was the original capability before 8 channels was supported, so it's the minimum "high speed" roadbloack you would have to worry about. If you are under 200, then you wouldn't see a change. Later 3.0 Modems do support up to 1GB, but require more channels than your provider is likely to allow provisioned.

The newer modem was probably better for you because it would have had a much higher performance processor in it and faster memory, which means you would have had lower latency and more consistent throughput as the modem worked through layer-1 issues (juggling bonded channels, adjusting power, filtering multi-path, diffraction, and other SNR issues).

Either way, most people will not see an issue unless they pay for the higher performance packages.
 

Goldenhawk

Well-Known Member
...The newer modem was probably better for you because it would have had a much higher performance processor in it and faster memory, which means you would have had lower latency and more consistent throughput as the modem worked through layer-1 issues (juggling bonded channels, adjusting power, filtering multi-path, diffraction, and other SNR issues). ...
I did see a huge improvement moving from an older 2.0 modem to a 3.0 modem. It more than doubled by speed on the same plan. THAT change was DEFINITELY worth spending $70 on the new modem (the Arris SB6183).
 

BernieP

Resident PIA
Thanks but I was asking because I would like to replace my modem rather than rent it every month. None of their listed replacements will do the phone, DOCSIS notwithstanding.
I just bought a modem, I didn't check their list. Just got one that was DOCISIS 3.0/3.1 compliant. I bought the wireless router separate.
I don't like having the modem and wifi/router combined.
The modem should not have any impact on processing packets.
 

Goldenhawk

Well-Known Member
I just bought a modem, I didn't check their list. Just got one that was DOCISIS 3.0/3.1 compliant. I bought the wireless router separate.
I don't like having the modem and wifi/router combined.
The modem should not have any impact on processing packets.
Not at all true. Read this.
The modems that ABB recommends specifically avoid this problem.
 

Goldenhawk

Well-Known Member
When I bought my modem last spring, I was surprised to see that Best Buy's top-selling modems were on that "avoid" list - in other words, they were selling known-defective products. Probably best-selling because they were lower-priced. Probably lower-priced because they were known-defective but still operable, even if slow and glitchy.
 

BernieP

Resident PIA
Not at all true. Read this.
The modems that ABB recommends specifically avoid this problem.
I think the first time I commented I mentioned errors. But DOCSIS has no part in processing the data in the packets.
It simply takes the analog and puts it into the correct digital form and sends the packet out.
If the packets have errors created by the modem the router or computer software will reject the packet and force retries.
Typically the biggest cause of "latency" in networks is the number of retries because bad data was received.
Since VoIP rides on TCP/IP, it would be that protocol stack that was be sending retries - same protocol used form most web services.
In other network situation you might use UDP as the protocol. Bad packets would not force retries, they are simply dropped.

A lawsuit over a bug?
 

Goldenhawk

Well-Known Member
Okay... maybe we're agreeing loudly. But I still maintain that you should check to ensure that your modem doesn't have the chipset bug, because it WILL adversely affect your speed, thus leading to choppy streaming video or noisy VOIP.

For the purposes of the original poster, I think we agree that certain modems should be avoided (due to the chipset issue), and others are probably overkill (because 3.1 makes no difference for 99% of us). Yes?
 

PeoplesElbow

Well-Known Member
Not at all true. Read this.
The modems that ABB recommends specifically avoid this problem.
The modem you have (the Arris SB6183 ) isn't on the ABB approved list?
 
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