Xdp

Recently, I heard that OVS (Open vSwitch) has added support for AF_XDP, so I investigated what background led to this and how to use it. OVS is composed of kernel modules and userspace processes. With this architecture, the following issues became apparent1, and recently the implementation using AF_XDP is being promoted as a replacement. Modifications that require kernel updates or system-wide restarts Influenced by kernel developer policies and implementations Performance lags behind DPDK Too many backports Sometimes loses distribution support All of these seem to be valid reasons to push forward with architectural changes....