Typical additional latency for CGN?

joseph.snyder at gmail.com joseph.snyder at gmail.com
Mon Oct 8 12:39:36 UTC 2012


Owen DeLong <owen at delong.com> wrote:

>
>On Oct 7, 2012, at 3:18 PM, Cameron Byrne <cb.list6 at gmail.com> wrote:
>
>> On Oct 7, 2012 1:48 PM, "Tom Limoncelli" <tal at whatexit.org> wrote:
>>> 
>>> Have there been studies on how much latency CGN adds to a typical
>>> internet user?   I'd also be interested in anecdotes.
>>> 
>> 
>> Anecdote. Sub-millasecond, with full load. (gigs and gigs) . CGN does
>not
>> meaningfully add latency. CGN is not enough of a factor to impact
>happy
>> eyeballs in a way that improves ipv6 use.
>> 
>>> I've seen theoretical predictions but by now we should have
>>> measurements from early-world deployments.
>>> 
>> 
>> Most mobile providers have been doing what is commonly called cgn for
>5 to
>> 10 years. CGN is not a new concept or implementation for mobile.
>> 
>
>True, but, as we have discussed before, mobile users, especially in the
>US,
>have dramatically lowered expectations of internet access from their
>mobile
>devices vs. what they expect from a household ISP.
>
>We expect half the services we want to be crippled by mobile carriers
>because
>they don't like competition. We file lawsuits when that happens on our
>terrestrial connections.
>
>Owen

Except now you have to do mediation, since class action lawsuits are now null and void. :)
-- 
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