xplornet contact or any experience with their satellite service?

Olav Kvittem olav.kvittem at uninett.no
Wed Apr 22 06:48:37 UTC 2020

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.


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