On Jan 7, 1:53 pm, Some Other Guy wrote:

So you have hundreds of passenger devices on the network. Due to a bug, one
or many may malfunction and cause a packet storm, either bringing down the
network or causing unacceptable latency. High latency can cause autopilot
oscillation and loss of control. Oops.

We are talking about the flight systems of an aircraft with, as I
suspect you're aware, two pilots who are there and are trained for
such an eventuality.
Autopilots falling over or going awry for a time are not unknown.
As a bye most ISPs handle hundreds, thousands and sometimes hundreds
of thousands of contacts per minute without falling over.
500 passengers wanting to watch the same movie isn't going to crash
the system