SHDSL Line 64&128 packet loss

[renzor]

Hello,

I have two SHDSL Routers connected with a single pair cable.
When i test the throughput(RFC2544) i have big packet losses on 64kb and 128 packets.
With bigger packets all it`s fine

Frame Size Transmit Rate Receive Rate Loss Rate Transmit Rate Receive Rate Loss Rate
64 5952 2429 3523 3.999M 1.632M 2.367M
128 3378 2438 940 3.999M 2.886M 1.113M
256 1811 1811 <1 3.998M 3.998M <1

 

[Ralston18]

Way out of my comfort zone here.....

But if you google "SHDSL packet size loss rates" you will find quite a number of technical articles addressing the matter.

For example:

https://infoscience.epfl.ch/record/184881/files/PEAC.pdf

That link and some of the other links that I saw seem to indicate that there are a number of factors involved....

Not sure what specific factors apply within your configuration but adding some of those factors to your search criteria may result in the answer you need.