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hdlc protocol

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EXCHANGE MODES<br />

ASYMMETRIC POINT-TO-POINT<br />

Station A<br />

Station B<br />

PRIMARY<br />

SECONDARY<br />

SOURCE<br />

I<br />

SEL<br />

POLL<br />

I<br />

ACK<br />

I<br />

DEST.<br />

ACK<br />

DEST.<br />

I<br />

I<br />

I<br />

SOURCE<br />

This mode is typically intended for multi-point links. Asymmetric point-to-point link<br />

is an adaptation of multi-point links.<br />

The information frames can be either "command" frames, or "response" frames.<br />

This mode is selected with the command frame "SNRM (Set Normal Response<br />

Mode)".<br />

GET/INT/LOR/RIP 30 of 33 October 15, 2007

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