I wish IEEE would natively support smaller channels as that's what's needed most of the time. Interference would be so much less.
If there's opportunity for Comcast to work with the WISP community on channel selection to avoid mutual destruction, then great.
That said, the cable company's efforts scream of OPM.
OPM, as in Other People's Money? If that's what you meant I don't think
that's an accurate description since AFAIK Comcast didn't get any CAF money.
Scott Helms
Vice President of Technology
ZCorum
(678) 507-5000
And the same guys (NCTA) complain about LTE-U - how dangerous it is for
their s/business/WiFi
We should all be complaining, vociferously, about LTE-U. I've seen the
tests and as it exists today LTE-U completely creams WiFi and is only
usable by someone who owns a LTE license. WiFi APs will cohabitate fairly
well, even if they share the same channel, because WiFi is a listen before
transmitting protocol. LTE and LTE-U is a centrally scheduled protocol and
doesn't have a back off mechanism.
Scott Helms
Vice President of Technology
ZCorum
(678) 507-5000
Yeah, Other People's Money.
I highly doubt they got government money, but large corporations are full of OPM from the perspective of the guy doing the work. Let's pitch this big science project because it sounds awesome and I can convince these guys to pay for it. It's not in any way unique to Comcast.
Contrasting that to a small company where it very much is the head guy's money in every decision, so (generally, though certainly not always) more judicious caution is exercised.
It's backed by large investments rather than CAF. At the same time, it's
well known that millions are spent on lobbying in the government to sway
the decisions.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
The tower-deployed AP can see the cable wireless APs for miles and can see a few dozen of them at any one time. Given the goal of full modulation at all times for optimal use of spectrum and dollars, the ever increasing noise from the cable APs makes this a challenge. You need 25 to 30 dB to maintain full modulation and that's increasingly difficult when you hear cable APs everywhere at -70.
The APs can't have narrow radiation patterns given that they need to cover a roughly 90* area of where the customers are. An 18 to 20 dB gain sector antenna will pick up those cable radios from pretty far away.
A few dozen? Damn, you are lucy, Mike!
I did an install the other day, a good 60-70 XfinityWifi SSIDs popped up.
Reminds me of the Good 'Ole CB days back in the 80's where everyone talked
over each other and played background music and such...
That's a big 10-4 and I got a Smokey on my trail!
-Mike
Really Comcast? Your spam software SUCKS ASS!
For those interested, the word that violated their spam software was "damn"
-Mike
My issue with the "free" wifi that comcast is forcing into our homes and
businesses is that it's also interfering with our own access points in
the same building!
- Michael
Odd - I got the email fine. The bound message you got also is in French,
which would not seem like something our email servers would do. Are you
sure that was from our servers? I¹d love to see the mail headers so I can
talk to the enterprise mail team.
Jason
On 9/10/15, 1:37 PM, "NANOG on behalf of Mike Lyon"
It's either Mike, Comcast or the NANOG list, so it's probably a safe bet.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
Bilingual English/French may indicate a Canadian mailserver.
My apologies, Comcast, I have an itchy trigger finger
A little googling indicates that the mail server that was listed on that
bounced email is a COGENT email server, not Comcast,
My apologies for that.
-Mike
Thank you all for your replies to the topic I have started.
UVM does not purchase Xfinity on Campus for our students to have TV via their computers or device. However Xfinity usually has a both setup on move-in day for students to individually purchase accounts to watch stuff online. UVM provides its own wireless to all the Residential halls/dorm in 2.4/5Ghz spectrum. Comcast/Xfinity has 2 Nodes on campus that have nothing connected to them, just collecting dust and burning power.
We see the addition of the Comcast/Xfinity AP's on the poles to either generate confusion and or interface to the already dirty wireless spectrum. Recently we are running into issue with DFS being 3 miles away from an airport and the TDWR.
Thanks again folks and see you in Montreal!
-Mike
Michael Voity
University of Vermont
In article <CAFFgAjCkbU3hzrC_5RecJGjOtqZuopd4K0033g-L5BTnN8iBpg@mail.gmail.com> you write:
My apologies, Comcast, I have an itchy trigger finger
A little googling indicates that the mail server that was listed on that
bounced email is a COGENT email server, not Comcast,
Sounds like COGECO which is a Canadian ISP.
R's,
John
Always getting blamed for Cogent stuff, no worries. 
- JL
On 9/10/15, 2:23 PM, "NANOG on behalf of Mike Lyon"
And it's not free, unless you are a Comcast or TW customer 
But it is free to the children of C&TW customers who then can watch HD
content while away at Uni without sapping the EDU bandwidth.
-Jim P.
Ehh... All that content is going over Internet2 for us anyway. I'd
suspect that's a somewhat common thread (though not ubiquitous).