Cable Operator List

frnkblk at frnkblk at
Wed Feb 3 05:07:48 UTC 2016

If you need density along the Arris line, skip the C4 and go straight to the E6000.


-----Original Message-----
From: NANOG [mailto:nanog-bounces at] On Behalf Of Daniel Corbe
Sent: Tuesday, February 02, 2016 8:18 AM
To: Colton Conor <colton.conor at>
Cc: NANOG <nanog at>
Subject: Re: Cable Operator List

Hey Colton, 

We’re using small 16 channel CMTS systems for residential MDUs and colocating them directly on premise inside of wiring closets and then connecting them by metro ethernet.  We’ve had great successes so far with this model.

There’s lots of CMTS vendors.

There’s tons of used Motorola BSR 64Ks on the market, but be aware of the lack of useful IPv6 features (like prefix delegation) in older software releases.  If you buy a box and want to run 7.x or 8.x, you’ll need to relicense your downstream and upstream channels at some additional arbitrary fixed cost.  

I’m personally fond of these things:

You can only bond 16 channels together max though because that’s all the box supports and you can’t bond across boxes; however, these things are less than 4 grand if you buy them in bulk so they’re really fucking easy to just spam everywhere.

Blonder Tongue makes a pizza-box style CMTS too:

As does Harmonics:

All three are based on the same chipset, so the real differentiation is price and firmware features.  

Then there’s Cisco.

The UBR is a popular platform.  And pretty soon there’s going to be a glut of UBR10Ks on the Market because Comcast is busy ripping their UBRs out of production because they’re upgrading their cable plant to the CBR platform.

Then the Arris C4, if you have deep pockets, is a modern version of the BSR:

> On Feb 2, 2016, at 9:00 AM, Colton Conor <colton.conor at> wrote:
> Well, maybe NANOG's not a bad place for this post then! I would like to know more about the data-only side of CMTS systems, and who the main vendors are. 
> We have MDU properties where there is either old inside CAT3 phone wire, or coaxial cable. We have looked and are very familiar with the multiple technologies that work over phone lines namely VDSL2 and G.FAST. However, using the coaxial cable seems to be a much better solution than using the phone wires.
> So I am looking for compacts, low cost CMTS systems. Based on the specs, I am looking for something at least DOCSIS 3.0 capable, with at least 16X4 output. Something with the ability to upgrade to software upgrade to DOCSIS 3.1 would be nice, but I doubt that would be a low cost solution.
> Whats out there for small operators that don't want a large chassis based system to feed an entire town with. 
> So far I have found the which seems to retail for under $5000. 
> On Tue, Feb 2, 2016 at 7:48 AM, Daniel Corbe <dcorbe at> wrote:
> > On Feb 2, 2016, at 8:42 AM, Colton Conor <colton.conor at> wrote:
> >
> > Are there any mailing lists out there dedicated for cable/MSO type
> > operators?
> >
> I'm curious about this too.
> I’m not a cable operator (in that I haven’t successfully registered for a cable franchise yet) but I do operate a docsis network and I’ve successfully negotiated the treacherous waters of obtaining and providing content to my users.
> I’m still a bit green behind the ears but I could probably offer some measure of assistance if you have a specific question.
> -Daniel

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