Tööstuslik andmeside kontrolltöö 2 abimaterjal - vastused
characters 1st SYN allow receiver to obtain & maintain bit synchronization 2nd SYN provides byte condition.> NRM operation and error recovery> ABM operation and error Problem appears only if the maximum size of frame is limited.
synchronization Frame Synchronization ~ Asynchronous Transmission using STX & ETX 1. obtain recoveryoDLC service modes:> Connectionoriented vs connectionless Example of PPP byte stuffing:
bit synchronization with 1st SYN starts receiving bits 2. enter hunt mode for byte synchronization: 1. Reliable/virtual-circuit (connection-oriented mode) users establish Flag=0x7E (01111110), Control escape=0x7D (01111101)
after each bit -> check last 8 bits 3
annaabi.ee 
