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Communications Programming Concepts

DLC8023 Direct Network Services

Some users wish to handle their own unnumbered information packets on the network without the aid of the data link layer within IEEE 802.3 Ethernet data link control (DLC8023). Once a service access point (SAP) is opened, a direct network interface allows an entire packet to be generated and sent. This action allows full control of every field in the data link header for each write issued. Also provided is the ability to view the entire packet contents on received frames. The criteria for a direct network write are:


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