jlivingood

Doubtful IMO. I think latency becomes another competitive differentiator, much like throughput/speed is today. (this is a personal comment but I work at Comcast)

Comment · 2 years ago

It has definitely changed. Looking at measurements on this it seems there is only 1 major transit network doing that, and they are working to fix it.

Comment · 6 years ago

> How would this work?

A 1st draft of the steering mechanism just posted today for comment at https://tools.ietf.org/id/draft-rescorla-doh-cdisco-00.txt

Comment · 6 years ago

> Comcast sniffs / records / tracks their user's DNS traffic

Actually not only does Comcast say they don't do that (https://www.xfinity.com/privacy/policy/dns) but now has signed a contract to this effect as well, thereby meeting the same level of commitment as the other TRR operators. This means IMO that Mozilla is doing a good job leading the industry on DNS privacy and convincing many of the merits of a strong pro-privacy philosophy.

(disclosure: I work for Comcast and have been working on encrypted DNS)

Comment · 6 years ago

> Why would DNS have "optimized, localized results"?

Any content that is CDN-based (which is most content) dynamically responds to DNS queries based on network and geographic location - to support CDN localization. In this way, Akamai for example knows the end user is in Boston on a Comcast network and will send the recursive DNS server a dynamic response that points to a directly-connected local-to-Boston content server.

Comment · 9 years ago

> Why traffic injection instead of mail pieces? I mean, I open all of mine, even the 75%+ that are upsells I don't want, on the off chance one of them will tell me something I need to know.

Lots of reasons, including years of experience with response rates for particular types of messages / calls to action. Clearly one particular communications channel won't work for everyone - each person has their own preferences. One of the things we're working on is to better enable you to control just that - basically one person may ask for SMS messages, another alerts via their mobile app, another via email, another via phone call, etc. You can see the beginnings of that in MyAccount / Settings / Communication & Ad Preferences.

> But with Let's Encrypt, browser manufacturers, and friends leading the charge toward TLS everywhere or as nearly so as is practical, and with most sites that most people use already employing TLS, the attack surface is closing for even an other-than-innocuous variant of your notification methodology.

Agree. And more TLS is better IMHO. I also like the work that Let's Encrypt has been doing - they've had a really big impact on the adoption of TLS. (See also http://labs.comcast.com/innovation-fund-spotlight-lets-encry...)

> Of course, that also means that that methodology itself is reaching a natural end-of-life, as it cannot work anywhere that TLS exists, and the majority of the web where it does exist continues to grow. If this low-latency notification scheme is of unique value to your business, then now is the time to consider replacing the outdated technology that underpins it with something which will continue to work reliably over the next decade or two.

You bet - totally agree! One of the places we're engaging to try to do that is in the IETF's CAPPORT working group and I think the charter describes reiterates all the points you made: https://datatracker.ietf.org/wg/capport/about/

> All that said, I appreciate your decision to engage in this forum. That's unprecedented in my experience from someone in a position like yours, and I wouldn't mind seeing more of it.

My pleasure & thanks for being a customer that's willing to offer constructive criticism. :-)

Comment · 9 years ago

It usually means you are about to get a speed upgrade that will go beyond what your modem is capable of delivering. In that case it is possible you could have a 1st generation 4x4 modem (so it can bond 4 downstream and 4 upstream channels).

Comment · 9 years ago

> They emailed my Comcast.net address, which I didn't even know I had.

I recommend you add your primary email address. You can do this via the self-service portal.

Go to https://customer.xfinity.com/#/settings/account under Account / Settings / Contact Information. IIRC you are sent a confirmation email you have to act on before it takes effect.