DPDK l3fwd is a sample application provided by DPDK for forwarding IPv4/IPv6 packets at layer 3. It uses the DPDK framework to achieve high-speed packet processing.
The l3fwd application works by reading incoming packets from a network interface, performing routing lookups on the packet’s destination IP address using a pre-built forwarding table, and then forwarding the packet to the appropriate egress interface.
The performance of l3fwd can be further improved by utilizing DPDK’s features such as multiple queues, multi-core support, and hardware offloading capabilities.
Overall, DPDK l3fwd is a powerful tool for high-performance routing in data center and networking applications.