IrLAN

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The IrLAN protocol (of English. I nf r ared L ocal A rea N etwork ) offers the possibility of a device via infrared interfaces in a LAN involve. The IrLAN protocol defines a full duplex interface between the client and a server. An IrLAN client establishes the connection to an IrLAN server. LAN packets can then be sent and received via this connection (data channel). In IrLAN peer-to-peer mode, each station has both a client and a provider. Since both could now open the connection, a protocol is used to decide which connection will be established.

The client establishes the connection by reading out information from the server's Information Access Service (IAS) and thereby specifying the IrLMP-LSAP (Logical Service Access Point). The client thus sets up a control channel via which the channel characteristics of the data channel are then negotiated. Then the data channel is opened and configured. Configurations are set by the control channel. The data channel is only used for the transmission of packets in the format of the LAN. The IrLAN connection is either canceled by the user or the connection time-out.