10-23-2021, 12:44 PM
Wrt hardware for the Sender/Receivers I've tested with Pi-4B/Eth as Sender and Pi-4B, 3A+, 3B+ and 3B as Receivers. All the Receivers use Comfast CF-912AC adapters and are on 5GHz band. I also tested the 3A+ with its integrated WiFi adapter and it worked fine. My Ethernet connection is home run to ASUS Router.
In your particular configuration which is all-Ethernet given that Receiver Pi-4B works fine but swapping in a 3B results in glitches would suggest an issue with the Ethernet implementation on the 3B. Possibly there is a compatibility issue between it and the Aruba switches. Maybe some sort of flow control issue.
Some things to try would be:
1. As you suggested, connect the 3B to the unmanaged SW.
2. Run some or all the Receivers on 5GHz WiFi. Make sure the switches can convert Multicast to either multi-unicast or broadcast so it works on wireless.
3. Run the some ping tests between Sender and 3B receiver to see if there are any obvious issues in the ping stats.
In your particular configuration which is all-Ethernet given that Receiver Pi-4B works fine but swapping in a 3B results in glitches would suggest an issue with the Ethernet implementation on the 3B. Possibly there is a compatibility issue between it and the Aruba switches. Maybe some sort of flow control issue.
Some things to try would be:
1. As you suggested, connect the 3B to the unmanaged SW.
2. Run some or all the Receivers on 5GHz WiFi. Make sure the switches can convert Multicast to either multi-unicast or broadcast so it works on wireless.
3. Run the some ping tests between Sender and 3B receiver to see if there are any obvious issues in the ping stats.
