Data center = 45Mbps circuit.
Branch offices connected to data center = 4. Total of 30 users per site. So therefore ingress traffic is 120 people.
I know that you consider about 10 TCP connections per user. If so, that is 120 x 10 = 1,200 connections.
Would you use 1,200 connections to estimate concurrent connections so that I can estimate firewall model?
Or you have another formula to estimate max # of concurrent connections?