Network Link Layer (NL2)

The Network Link Layer (NL2) software component provides real-time applications with abstract APIs to access network services at the Layer 2 of the OSI model, independent of the underlying hardware. This typically includes:

• Transmit and receive raw Ethernet packets
• Configure and get the link status
• Configure hardware timestamping
• Configure hardware filters
• Configure QoS
• Read and adjust hardware clock(s)

Using the NL2, you can easily integrate network functionality such as TCP/IP and E-CAT.

Note: The NL2 component is included as an optional feature in the wRTOS Runtime product package. All upper-level networking features require the NL2.

In this section:

• NL2 Architecture
• NL2 Quick Start
• Creating an Application that Uses the NL2
• Controlling the NL2 Programmatically
• Creating a NIC Driver
• Creating a Filter Driver
• Porting a NAL Driver to the NL2

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