ECE 411 – Assignment 4
Beverly Ann M. Gonzales
1. Suppose the length of a 10Base5 cable is 2.5 km. If the speed of propagation in a
thick coaxial cable is 200,000,000 m/s, how long does it take for a bit to travel from
the beginning to the end of the network? Assume there are 10 µs delay in the
equipment.
t = 22.5 µs
2. An Ethernet MAC sublayer receives 1510 bytes of data from the upper layer. Can
the data be encapsulated in one frame? If not, how many frames need to be
sent? What is the size of the data in each frame?
No, data cannot be encapsulated in one frame. 2 frames are necessary where:
Frame 1 – 1500 bytes
Frame 2 – 46 bytes
SOLUTION: