nanog mailing list archives

Re: xplornet contact or any experience with their satellite service?


From: Brandon Martin <lists.nanog () monmotha net>
Date: Tue, 21 Apr 2020 15:03:46 -0400

On 4/21/20 2:54 PM, Mel Beckman wrote:
It’s not really oversold bandwidth. It’s just that the turnaround time for a bolus of data is too long for two-way 
video conferencing to be smooth or reliable. It’s like video conferencing using post cards :)

Are consumer satellite provider networks TDD or FDD?  I guess I had assumed the latter, but maybe not?

Assuming FDD, I don't see why the downstream needs to necessarily have problems with extremely long user-data-striping 
periods unless there's some factor I am just totally not considering.

The upstream is of course more of a problem.  I assume it's TDMA, and the terminals have imperfect clocks.
-- 
Brandon Martin


Current thread: