QUESTION: Framing in Ethernet is based on the following set of rules:
- Each pair of consecutive frames are separated
by an inter-frame
gap (which is an idle period that is at least 96 bit times
long), followed by a preamble,
(which is a fixed sequence of exactly 64 bits).
- The frame
length can be any value (in bytes) between a minimum value of 64
bytes and a maximum value of 1518 bytes.
- The frame
format consists of a 14-byte header, a payload field whose
length is between 46 bytes and 1500 bytes, and a 4-byte CRC.
Answer the following questions, assuming a bit rate of 107
bits/sec.
PART (a): The Ethernet frame format doesn't include a length field.
Briefly explain how it can function properly without one.
PART (b): Find the maximum possible number of packets per second that
can be carried over a single Ethernet link. Explain which parameter
combination gives you this maximum and show your work!
PART (c): Find the maximum possible throughput (in bits/sec) that can
be achieved by a higher-layer application that uses Ethernet to carry
its data.