hdlc protocol
hdlc protocol
hdlc protocol
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RULES OF RESTART<br />
WRONG N(S) (SREJ VERSION)<br />
●<br />
●<br />
Any information frame whose N(S) does not contain the expected value must<br />
be discarded. The eventual next information frames should be stored.<br />
A station receiving such a frame must then send a SREJ frame with N(R)<br />
indicating the expected frame number.<br />
COMMAND REJECT<br />
●<br />
After receiving a CMDR / FRMR frame, the data link is supposed to be<br />
disconnected.<br />
RESET<br />
●<br />
●<br />
●<br />
Clears a data link.<br />
The SABM and UA frames are exchanged without prior disconnection.<br />
The N(S) and N(R) counters are reset; the pending information frames are<br />
discarded.<br />
GET/INT/LOR/RIP 22 of 33 October 15, 2007
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