[EAS] CAP Polling Interval Questions

[Alex Hartman]

Harold,

Plenty of ISP's are "throttling" users that are high-bandwidth hogs.
Comcast particularly. Keeping in mind that EAS/CAP would be a VERY
small portion of this, but a mom and pop shop with a standard cable
modem account from comcast, who downloads programming daily will hit
this cap quite quickly, and thus comcast will "throttle" their
connection or even disconnect it for abuse of the terms of service!
(has happened already to business users!) It's a transfer limit (in
KB/MB/GB) that's imposed, not a packet limit, really.

Out in the boonies, co-op telcos do this all the time, the transfer
limit can be as small as 2Gb a month! (for long-form programming,
that's nothing!)

--
Alex Hartman
KVSC Radio

On Wed, May 11, 2011 at 9:22 AM, Harold Price
<hprice at sagealertingsystems.com> wrote:
> Do you have any data on packet limits for cable modems?  Do they
> limit on number of packets, or number of bytes?
>
> A poll could be as simple as 6 very short packets. In bytes, per day,
> it is the equivalent of three minutes of streaming audio at 64kbps.
>
> There are several ways to multicast push, via satellite, datacast on
> TV, etc.  There are costs associated with that as well, of course.
>
> Harold