[hpsdr] windows 10 is dropping udp packages

[Johan Maas]

Scott

Tnx for the reply. I was not talking about out of order of udp packages.
But anyway i solved the issue.

I updated the ethernet drivers and in the windows log no errors are
occuring anymore.

P1 and powersdr is working great now with the radioberry.

73 Johan PA3GSB

Op zo 12 aug. 2018 om 18:07 schreef Scott Traurig <scott.traurig at gmail.com>:

> Johan,
>
> Many, but not all, Microsoft Windows installations will, for some reason,
> deliver out of order but not missing UDP packets to the application layer.
> Left uncorrected, this will cause sequence error indications in both
> PowerSDR mRX and Thetis.
>
> This problem has been worked around in PowerSDR by means of the "PRO
> latency" setting. This is the number of UDP packets that will be buffered
> for reordering. "0" will turn off this feature, "4" will buffer 4 UDP
> packets. There have been no observations of packets arriving out of order
> by more than 4 packets, and rarely more than just a single packet out of
> place (swapped packets). The larger the reordering value the more latency
> one has on receive. However, under typical conditions it's only about 3.5mS
> per packet.
>
> Also in PowerSDR mRX is an "OOOPS" counter, which is a rather unfortunate
> name for what is essentially a dropped packet counter. Any packet that is
> effectively lost because it is further out of order than the PRO feature
> can handle, or just out and out gone, will be counted by this counter. You
> should not see more than a handful of counts per hour. A non-zero number is
> normal, of course, because as you know UDP is an inherently lossy protocol.
>
> Unfortunately, neither of these features have been ported to Thetis yet.
>
> I'd recommend running P1 and PowerSDR mRX to ensure that you do not have a
> major problem with your Windows and network installation, as the necessary
> diagnostics are not in Thetis yet.
>
> 73,
>
> Scott/w-u-2-o
>
>
>
>
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