in this paper https://people.eecs.berkeley.edu/~luca/cs174/byzantine.pdf
- n -> total number Consensus Nodes.
- m -> (n - 1) / 3, is stands for the maximum number of erroneous nodes allowed in the system

=> maximum message send in system is : (n - 1) * (n - 2) * ... * (n - m - 1)

m = 0 => n - 1 messages
m = 1 => (n -1) * (n - 2) messages

=> m is number round of Messages will be sent in the Committee