P9. consider the discussion in section 1.3 of packet switching versus circuit switching in which an example is provided with a 1 mbps link. users are generating data at a rate of 100 kbps when busy, but are busy generating data only with probability . suppose that the 1 mbps link is prop trans t=0 t= trans prop trans t=dtrans prop trans to trans s=2.5⋅108 l=120 bits r=56 kbps. prop trans p=0.1 replaced by a 1 gbps link. a. what is n, the maximum number of users that can be supported simultaneously under circuit switching?