Information Transfer Command

Information Transfer Command

DSAP SSAP

控制欄 訊息欄

0

Send Count - N(S)

P/F

0 1 7 8 9 15

Receive Count - N(R)

• Sequence Number
• Send count N(S): The sequence number of this PDU
• Receive count N(R): The sequence number the LLC sublayer entity expects to find

in the next LLC-PDU it receives.

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