Daniel, We'd have to come to some standard definition of, "But even if 1% of users would reasonably be using a fully symmetric link to its potential..." As I said, I have visibility into a large number of symmetric connections and without exception they'd fit well into a plan that offered upstreams with that had a fractional speed of the downstream. Now, keep in mind I'm not talking about 1/10 as a ratio here, but 1/5 would accommodate ~99.2% and 1/4 would fit ~99.9%. It's also important to note that all of these accounts are in the >25mbps down territory so their upstreams are >5mbps. What I see when I look at customer satisfaction ratings is a very strong correlation with low uplink speeds and a high satisfaction rate when we look at uplink speeds greater than 4mbps. What I don't see is an increase in customer satisfaction as upload speeds go past ~6mbps. Conversely, increases in customer satisfaction with correlate with increases in download speeds past ~30mbps before the correlation starts weakening. Scott Helms Vice President of Technology ZCorum (678) 507-5000 -------------------------------- http://twitter.com/kscotthelms -------------------------------- On Fri, Feb 27, 2015 at 2:57 PM, Daniel Taylor <dtaylor@vocalabs.com> wrote:
The statistics certainly *should* be used when provisioning aggregate resources. But even if 1% of users would reasonably be using a fully symmetric link to its potential, that's a good reason to at least have such circuits available in the standard consumer mix, which they aren't today.
On 02/27/2015 01:30 PM, Scott Helms wrote:
Daniel,
Well, I wouldn't call using the mean a "myth", after all understanding most customer behavior is what we all have to build our business cases around. If we throw out what customers use today and simply take a build it and they will come approach then I suspect there would fewer of us in this business.
Even when we look at anomalous users we don't see symmetrical usage, ie top 10% of uploaders. We also see less contended seconds on their upstream than we do on the downstream. These observations are based on ~500k residential and business subscribers across North America using FTTH (mostly GPON), DOCSIS cable modems, and various flavors of DSL.
Scott Helms Vice President of Technology ZCorum (678) 507-5000 -------------------------------- http://twitter.com/kscotthelms --------------------------------
On Fri, Feb 27, 2015 at 2:21 PM, Daniel Taylor <dtaylor@vocalabs.com <mailto:dtaylor@vocalabs.com>> wrote:
But by this you are buying into the myth of the mean.
It isn't that most, or even many, people would take advantage of equal upstream bandwidth, but that the few who would need to take extra measures unrelated to the generation of that content to be able to do so.
Given symmetrical provisioning, no extra measures need to be taken when that 10 year old down the street turns out to be a master musician.
On 02/27/2015 11:59 AM, Scott Helms wrote:
This is true in our measurements today, even when subscribers are given symmetrical connections. It might change at some point in the future, especially when widespread IPv6 lets us get rid of NAT as a de facto deployment reality.
Scott Helms Vice President of Technology ZCorum (678) 507-5000 <tel:%28678%29%20507-5000> -------------------------------- http://twitter.com/kscotthelms --------------------------------
On Fri, Feb 27, 2015 at 12:48 PM, Naslund, Steve <SNaslund@medline.com <mailto:SNaslund@medline.com>> wrote:
How about this? Show me 10 users in the average neighborhood creating content at 5 mbps....Period. Only realistic app I see is home surveillance but I don't think you want everyone accessing that anyway. The truth is that the average user does not create content that anyone needs to see. This has not changed throughout the ages, the ratio of authors to readers, artists to art lovers, musicians to music lovers, YouTube cat video creator to cat video lovers, has never been a many to many relationship.
On 2015-02-27 12:13, Valdis.Kletnieks@vt.edu <mailto:Valdis.Kletnieks@vt.edu> wrote:
Consider a group of 10 users, who all create new content. If each one creates at a constant rate of 5 mbits, they need 5 up. But to download all the new content from the other 9, they need close to 50
down.
And when you expand to several billion people creating new content, you need a *huge* pipe down.
Steven Naslund Chicago IL
-- Daniel Taylor VP Operations Vocal Laboratories, Inc. dtaylor@vocalabs.com <mailto:dtaylor@vocalabs.com> http://www.vocalabs.com/ (612)235-5711 <tel:%28612%29235-5711>
-- Daniel Taylor VP Operations Vocal Laboratories, Inc. dtaylor@vocalabs.com http://www.vocalabs.com/ (612)235-5711