nanog mailing list archives
Re: Starlink routing
From: Michael Thomas <mike () mtcc com>
Date: Mon, 23 Jan 2023 15:36:49 -0800
On 1/23/23 3:14 PM, Eric Kuhnke wrote:
The original and traditional high-cost way of how this is done for MEO/LEO is exemplified by an o3b terminal, which has two active motorized tracking antennas. The antenna presently in use for the satellite that is overhead follows it until it's descending towards the horizon, while at the same time the second antenna aims itself at where the next 'rising' satellite is predicted to appear at the opposite horizon, and forms a link to it. Make-before-break. If anyone has seen photographs in their marketing material/videos of the Oneweb beta test earth stations in Alaska they are operating using the same general concept.I'm trying to understand this so sorry if this comes off dumb. So does the base station mediate all handoffs where the CPE is told when/what to handoff? Or does the CPE have some part in it (other than receiving the handoff)? Does the CPE accept control traffic (L2?) from any bird? Are there cases where the CPE needs to de-dup packets due to handoffs?Oneweb has clearly positioned their market focus for telecoms and ISPs and large enterprise end users, because their CPE equipment is considerably larger, expensive and more power hungry. The beta test sites I've seen installed on top of a telecom equipment shelter occupy an area approximately 8 feet long x 4 feet wide including radomes and mounting.
This is pretty fascinating stuff. Mike
Current thread:
- Re: Starlink routing, (continued)
- Re: Starlink routing Forrest Christian (List Account) (Jan 23)
- Re: Starlink routing Tom Beecher (Jan 23)
- Re: Starlink routing William Herrin (Jan 23)
- Re: Starlink routing Masataka Ohta (Jan 23)
- Re: Starlink routing Anton Kapela (Jan 23)
- Re: Starlink routing Hank Nussbacher (Jan 22)
- RE: Starlink routing Chris J. Ruschmann (Jan 23)
- Re: Starlink routing Eric Kuhnke (Jan 23)
- RE: Starlink routing Kevin McCormick (Jan 23)
- Re: Starlink routing Eric Kuhnke (Jan 23)
- Re: Starlink routing Michael Thomas (Jan 23)
- Re: Starlink routing Eric Kuhnke (Jan 23)
- Re: Starlink routing Eric Kuhnke (Jan 23)