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

[Olav Kvittem via NANOG <nanog () nanog org>]

On 21.04.2020 20:59, Brandon Martin wrote:
> On 4/21/20 2:35 PM, Brian J. Murrell wrote:
> > Interesting.  So basically as Mel said, over-sold network.  :-(
> This is pretty typical of consumer VSAT and such.  You can of course get better performance...if you're willing to pay for it.  If you find the 
> right carrier/re-seller, you can perhaps find one whose "system" (to include ground station, terminals, and smarts on the bird) can respect 
> DSCP and flag at least your voice traffic appropriately (probably EF) to perhaps lower the jitter and make conferencing more palatable.  Finding 
> competent folks at a typical consumer provider's helpdesk to talk to about such things is probably the limiting factor.  The higher up the 
> foodchain you go towards the folks who "own" the spectrum rather than re-sell will perhaps get you more luck on something like this though 
> probably also at higher MRC.
>
> Unfortunately, it's just what happens when you spread an already limited resource (transponder bandwidth) out over 
> essentially an entire continent or at least substantial portions of it.  Imagine if you had a cable provider with a single 
> node for an entire, say, US state.

Could be interesting to do  one-way-delay measurements in parallel to 
see how the packets are travelling

and where and how big the queues are (Bufferbloat).

Likeways if you have a unix system you could look at tcp statistics

to see if you have packet retransmits (netstat -s).

As previously noted TDMA between uploading or even ACK'ing users could 
be a bottleneck for the download speed.


Olav