This article demonstrates how to use DPDK's Graph API for L3 packet forwarding, introduces a custom ACL node, and presents performance comparisons of different packet‑transfer mechanisms and batch sizes within the graph pipeline.
This article explains how OpenVSwitch leverages virtual switches, OpenFlow, and sophisticated caching strategies—including microflow, megaflow, Tuple Space Search, Tuple Priority Sorting, Staged Lookup, and Prefix Tracking—to reduce kernel‑user space communication and improve data‑center network performance.
This article explains why Linux’s native networking stack falls short of line‑speed, analyzes the core latency sources such as DMA, memory copying, routing look‑ups and lock contention, and proposes a comprehensive set of kernel‑level redesigns—including VOQ queues, lock‑free data structures, and user‑space stacks—to achieve near‑wire‑speed forwarding.
This article provides a comprehensive overview of the OSI network layer, explaining its role in host‑to‑host communication, the mechanisms of packet forwarding and routing selection, router architecture, queueing strategies, and the details of IPv4 and IPv6 protocols, including migration techniques.
