Answer: Hello your question lacks some data below is the missing data
what is the total end-to-end delay to send a packet of length L? (Ignore queuing, propagation, and processing delay) extend to N-1 packet switches interconnected by N links with rates R1, R2, …, RN
answer:
L/R1 + L/R2
Explanation:
The sending host will begin to transmit at to
At ( t1 = L/R1 ) the entire packet will be received at the router because at this time the sending host will complete the transmission process to the router.( No propagation delay )
At ( t2 = L/R2 ) the router completes transmission of the entire packet to the receiving host ( note : The transmission of the packet to the receiving host by the router starts at t1 hence No propagation delay is recorded. )
