nanog mailing list archives
Re: Cable Operator List
From: Colton Conor <colton.conor () gmail com>
Date: Tue, 9 Feb 2016 14:32:58 -0600
Yes, I looked at CASA, but their small unit is the C1G, which is an 8x8 max DOCSIS 3.0 unit. Plus they want a high price point, almost quadruple what a 16X4 Pico Digital or Harmonic's unit cost. Not seeing the value or specs there to justify it. On Tue, Feb 9, 2016 at 2:26 PM, Steven Shalita <sshalita () comcast net> wrote:
Have you looked at Casa Systems? They some smaller density MDU stuff. -Steve Sent from my iPhone. Please excuse any errors.On Feb 9, 2016, at 12:20 PM, Colton Conor <colton.conor () gmail com>wrote:Scott, Have any idea which exact vendors and model numbers are within this price range? So far I have just found mini CMTS systems like the Pico and Harmonic's. Both of these are a 16x4 configuration, but no mention of remote MAC+PHY nor DOSIS 3.1. Then their is Huawei's solution, but stillIthink that's more based on C-DOCSIS. Searching the vendors websites you recommended show no results for remote MAC+PHY in a small format.On Tue, Feb 2, 2016 at 2:44 PM, Scott Helms <khelms () zcorum com> wrote: Colton, D3.1 gear is just coming online right now. If you're going to go withthesmaller PHY+MAC approach I'd just make sure the company has plans toupdatetheir boxes to 3.1 in a decent (your judgement) amount of time. Don't expect any 3.0 box to be software upgradeable to 3.1, the hardware isquitedifferent. The PHY+MAC boxes are _generally_ < $10k and some aretalkingabout ~6k. All the vendors we've listed so far have plans for 3.1, but I don'thave atimeline for any of them. Right now the market is still trying todecidehow modular CMTS will be rolled out, remote PHY, remote MAC+PHY, or a combination. For example, Cisco is (for the moment) betting that remote PHY economics will be compelling for the larger operators, while Arrisisdoing both approaches. Scott Helms Chief Technology Officer ZCorum (678) 507-5000 -------------------------------- http://twitter.com/kscotthelms -------------------------------- On Tue, Feb 2, 2016 at 3:31 PM, Colton Conor <colton.conor () gmail com> wrote:Is a remote MAC+PHY the same thing as a Distributed Converged Cable Access Platform (D-CCAP) solution like Huawei is pushing? Is DOCSIS 3.1 even out, or am I looking for something that does not exist yet? Are these remote MAC+PHY devices in the under 10K price range thatthesesmaller all in one CMTS platforms are?On Tue, Feb 2, 2016 at 12:49 PM, Scott Helms <khelms () zcorum com>wrote:On Tue, Feb 2, 2016 at 1:24 PM, Colton Conor <colton.conor () gmail com> wrote:Yes, we are in the USA. So based on everyones recommendations, I am going to stay far away from EURODOCSIS. I was told be a vendor that Arris and other USA FCC certified cable modems could easily beflashed toEURODOCIS mode, so I did not think the CPE side was that big of adeal (isthat even true). I was not aware that there were so many differences besides just the channel width.I wish this were the case, it would make my life easier. The problemisthat there is a diplex filter that prevents the upstream burst frombeingheard by the downstream receiver and for cost purposes all the D3 and earlier modems have fixed filters. What that means is that aEuroDOCSISmodem can (sometimes) be flashed to use 6MHz channels, but thereverse isNOT true. In any case we don't recommend using Euro modems that are flashed to US standards in production (nor do the vendors) becauseyou'llsee much more upstream leakage.So, assuming we are talking about DOCSIS only (and not EURODOCSIS), what do you recommend? I like the idea of being able to upgrade to3.1, butnot sure if there are any small systems capable of this? By small Imeansomething that could feed less than 100 units, and be economical todo.Cable has the advantage of cheap modems, so it's really the CMTSside.In that case I'd definitely go with a remote MAC+PHY. That's the only way you're going to get a good price point and decent performanceunlessyou want to use the secondary market, which actually isn't a bad idearightnow. A used 7225 with 8x8 blades is pretty cheap, but it'scentralizedCMTS that would cover ~3k subs.Please remember I am only interested in data internet services over this plant. Something that works for garden style layouts where Ican bringfiber or coaxial to the side of a garden townhome that has between 4to 16units inside of it. The reason I requested a harden outdoor unit isthatmost all of the garden style properties have both the phone and coaxial drops on the outside of the building. There is no central closet or room. Plus we are in the south, so hardened for the heat exposure makes sense. A remote MAC-PHY (or pre remote MAC-PHY, ala mini CMTS) sounds like what I want. I will check into Huawei and Gainspeed. Who else makesthese?In no particular order, Arris is or will be, Teleste (Euro vendortryingto break into the US), Sumavision, Altera, and ton more I can'tremember.Come to one of the SCTE shows (it's in Philadelphia this year) if youwantto be deluged with them :)On Tue, Feb 2, 2016 at 11:24 AM, Scott Helms <khelms () zcorum com>wrote:Nick, Absolutely, if your plant is in Europe or one of the other areas(lotsof Africa and the middle East is like that) that adopted EuroDOCSISI'dagree wholeheartedly. I didn't see Colton say where they'relocated, butall North America is the US flavor so that's what I assume on NANOG. That being said, the best thing that seldom gets mentioned aboutD3.1is getting us to unified channelization. Scott Helms wrote:That very small upside for an extreme downside.Trying to hiresomeoneto work on your system with Euro channelization, not to mentionbuyingamplifiers and passives is a huge PITA.... if your plant is in the US.I have customers in Europe who decided to do US DOCSIS and they universally wish they had used the local "flavor".as you say, eurodocsis works well in europe. 3.1 will be a major improvement when it materialises. Nick
Current thread:
- Re: Cable Operator List, (continued)
- Re: Cable Operator List Scott Helms (Feb 02)
- Re: Cable Operator List Nick Hilliard (Feb 02)
- Re: Cable Operator List Scott Helms (Feb 02)
- Re: Cable Operator List Nick Hilliard (Feb 02)
- Re: Cable Operator List Scott Helms (Feb 02)
- Re: Cable Operator List Colton Conor (Feb 02)
- Re: Cable Operator List Scott Helms (Feb 02)
- Re: Cable Operator List Colton Conor (Feb 02)
- Re: Cable Operator List Scott Helms (Feb 02)
- Re: Cable Operator List Colton Conor (Feb 09)
- Message not available
- Re: Cable Operator List Colton Conor (Feb 09)
- Re: Cable Operator List Scott Helms (Feb 09)
- Re: Cable Operator List Colton Conor (Feb 09)
- Re: Cable Operator List Scott Helms (Feb 09)
- Re: Cable Operator List Richard Holbo (Feb 04)
- Re: Cable Operator List Colton Conor (Feb 05)
- Re: Cable Operator List Daniel Corbe (Feb 02)
- Re: Cable Operator List Alex Brooks (Feb 02)
- RE: Cable Operator List frnkblk (Feb 02)
- Re: Cable Operator List Colton Conor (Feb 03)