The ExtremeXOS® v33.3.1 Licensing Guide by Extreme Networks, Inc., released in April 2025, details the comprehensive licensing features and installation procedures for Extreme switches. It covers the Value Edge, Edge, Advanced Edge, and Core license levels, each building on the features of the preceding level, and includes specific features such as L2 switching, L3 routing, VLANs, dynamic routing protocols, and advanced security settings. The guide provides detailed instructions for installing and uninstalling licenses, displaying installed license levels, and obtaining trial licenses. It also covers additional feature licenses like MPLS, AVB, and MACsec, and outlines supported platforms and recommended best practices for optimal software performance.