[Starlink] starlink upload behavior

Dave Taht dave.taht at gmail.com
Wed Aug 31 11:22:29 EDT 2022


I have just been leaving cake at 6Mbit on the upload and that fq and
control make it much
more tolerable for my mix of videoconferencing and uploads. That said,
I hadn't looked
at the native performance in a while which is markedly better than it
was a few months ago, at least for this quick test run.

If anyone can make sense of these... for the first 1/3 of the trace
throughput is low and RTTs are *NICE*,
the second looks like a sat switch - still nice... then another sat
switch where I get full upload throughput
and the latency grows significantly.

If anyone is into packet captures:

http://www.taht.net/~d/starlink-1-auto.cap # starlink through their wifi
http://www.taht.net/~d/starlink-1-cake6.cap # starlink through their
wifi, with cake bandwidth 6mbit on mine

Graphs produced with xplot.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: starlink-up-acks.png
Type: image/png
Size: 9898 bytes
Desc: not available
URL: <https://lists.bufferbloat.net/private/starlink/attachments/20220831/c4592812/attachment-0005.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: starlink-up-rtt.png
Type: image/png
Size: 9919 bytes
Desc: not available
URL: <https://lists.bufferbloat.net/private/starlink/attachments/20220831/c4592812/attachment-0006.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: starlink-up-tput.png
Type: image/png
Size: 8332 bytes
Desc: not available
URL: <https://lists.bufferbloat.net/private/starlink/attachments/20220831/c4592812/attachment-0007.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: starlink-zoomed.png
Type: image/png
Size: 19365 bytes
Desc: not available
URL: <https://lists.bufferbloat.net/private/starlink/attachments/20220831/c4592812/attachment-0008.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: starlink-cake6-rtt.png
Type: image/png
Size: 9320 bytes
Desc: not available
URL: <https://lists.bufferbloat.net/private/starlink/attachments/20220831/c4592812/attachment-0009.png>


More information about the Starlink mailing list