Observations of an Internet Middleman (Level3) (was: RIP

Scott Helms khelms at zcorum.com
Fri May 16 19:44:55 UTC 2014


 I don't think that anyone disputes that when you improve the upstream you
do get an uptick in usage in that direction.  What I take issue with is the
notion that the upstream is anything like downstream even when the capacity
is there.  Upstream on ADSL is horribad, especially the first generations
(g.lite and g.dmt).

Scott Helms
Vice President of Technology
(678) 507-5000

On Fri, May 16, 2014 at 3:25 PM, Mark Tinka <mark.tinka at seacom.mu> wrote:

> On Friday, May 16, 2014 05:35:39 PM Jay Ashworth wrote:
> > Could you expand a bit, Mark on "Social media forces the
> > use of symmetric bandwidth"?  Which social media
> > platform is it that you think has a) symmetrical flows
> > that b) are big enough to figure into transit symmetry?
> What we saw with FTTH deployments is that customers uploaded
> more videos and photos to Youtube, Facebook, MySpace, e.t.c.
> They didn't do this on ADSL as much (it's too frustrating).
> When that caught on, customers started buying online backup
> services - synchronizing backups of their home or office
> computers to remote backup infrastructure. Again, they never
> did this with ADSL.
> What we learned: don't take it for granted that you will
> always know what your customers (or the content providers
> who serve them) will do with the bandwidth. If they have it,
> expect the worst, and plan for it as best you can.
> Mark.

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