Synchronous Transmission
Data sent in a large block
- Called a frame or packet
- Typically about a thousand characters (bytes) long
Includes addressing information
- Especially useful in multipoint circuits
Includes a series of synchronization (SYN) characters
- Used to help the receiver recognize incoming data
Synchronous transmission protocols categories
- Bit-oriented protocols: SDLC, HDLC
- Byte-count protocols: Ethernet
- Byte-oriented protocols: PPP