IrLAP - “Link Access Protocol”

Physical Layer

IrLAP

IrLMP

TinyTP

IrCOMM

IrLAN

IrOBEX

• Purpose:

  • Handle connections/disconnections
  • Implement reliable transfer

• Details:

  • Connection negotiation always begins using fixed set of parameters (9600 bps, no parity, etc) to avoid compatibility problems
  • After exchanging capabilities, speed is increased to best available
  • If connection interrupted, sends notification to higher layer

• Interesting: IrLAP based on HP calculators’ IR xfer

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