Consider the queuing delay in a router buffer, where the packet experiences a delay as it waits to be transmitted onto the link. The length of the queuing delay of a specific packet will depend on the number of earlier-arriving packets that are queued and waiting for transmission onto the link. If the queue is empty and no other packet is currently being transmitted, then our packets queuing delay will be zero. On the other hand, if the traffic is heavy and many other packets are also waiting to be transmitted, the queuing delay will be long.

Assume a constant transmission rate of R = 1800000 bps, a constant packet-length L = 4500 bits, and a is the average rate of packets/second. Traffic intensity I = La/R, and the queuing delay is calculated as I(L/R)(1 - I) for I

Assuming the router's buffer is infinite, the queuing delay is 2 ms, and 2680 packets arrive. How many packets will be in the buffer 1 second later?

Ee teafic is hesry and many ohtar packes are alse waitng to be transmithed, the queuing delay wit be long