Topics to Look For¶
- Physical layer
- Encoding
- Clock synchronization/recovery
- NRZ
- NRZI
- Manchester
- 4B/5B
- Link layer
- Framing
- Bit stuffing
- Byte stuffing / character stuffing
- Time-sequence diagram
Reading¶
The Dordal reading covers the basics of the encoding schemes listed above, while CNP3 repeats some and goes into more detail in places.
- Dordal: 6.0-6.1
- CNP3: Connecting Two Hosts — Read the intro, “The physical layer,” “The datalink layer,” and “Framing.” Stop when you hit the heading “Recovering from transmission errors”