Реферат: Протокол HDLC

I

I

I

I

I

I

RR

RR

RR

RR

RR

RR

RNR

RNR

RNR

RNR

RNR

RNR

SNRM

UA

SARM

UA

SABM

UA

DISC

DM

DISC

DM

DISC