0. Packet-switching: store-and-forward

   Assumptions:

   • Assume no other delay source than transmission delay

   • Packet length (L) = 6 MB

   • Link bandwidth (R) = 1 Gbps

   • Note that B stands for bytes and b does for bits in the metrics above

a. Calculate the end-to-end delay, assuming that source and destination directly connected thru a single link without any intermediate network device in between (i.e., Source ---- Destination).

b. Calculate the end-to-end delay, assuming that source and destination connected thru three intermediate links with two intermediate network devices in between (i.e., Source ---- Network Device1 ---- Network Device2 ---- Destination).

in metric i.e. sec and msec