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Ethernet

• Virtual LAN (VLAN) Support
• Link Layer Discovery Protocol
• IEEE 802.1Qav

Overview

Ethernet is a networking technology commonly used in local area networks (LAN). For more information, see this Ethernet Wikipedia article.

Zephyr supports following Ethernet features:

• 10, 100 and 1000 Mbit/sec links

• Auto negotiation

• Half/full duplex

• Promiscuous mode

• TX and RX checksum offloading

• MAC address filtering

• Virtual LANs

• Priority queues

• IEEE 802.1AS (gPTP)

• IEEE 802.1Qav (credit based shaping)

• LLDP (Link Layer Discovery Protocol)

Not all Ethernet device drivers support all of these features. You can see what is supported by net iface net-shell command. It will print currently supported Ethernet features.

API Reference

Ethernet Support Functions

Related code samples

• Inter-VM Shared Memory (ivshmem) EthernetCommunicate with another "cell" in the Jailhouse hypervisor using IVSHMEM Ethernet.
• Packet socketUse raw packet sockets over Ethernet.
• UDP sender using SO_TXTIMEControl the transmission time of a packet using SO_TXTIME socket option.

Ethernet MII Support Functions