Latency is wrong after connection drops

[george-galvin]

Describe the bug
Sometimes after reconnecting after a connection drop, a ping request will be answered immediately by the response from the previous request which is waiting in the socket buffer. This creates a chain reaction where each request afterwards is answered by the response to the previous one, and so the ping latency is basically zero.

To Reproduce
Steps to reproduce the behavior:

• Run a ping test with a high count
• Mess with the connection to cause drops (can take a few tries)

Expected behavior
There should be a check that the sent sequence number = received sequence number.

Screenshots
Here, I added print statements in executor.py to display the sent/received sequence numbers

Desktop (please complete the following information):

• OS: Ubuntu 22.04.3 LTS