This message catalog for ExtremeXOS and Switch Engine version 34.1.x provides an alphabetical reference of the event messages generated by the switch, organized by component and message name. Coverage includes components such as AAA, ACL, BGP, DHCP, and RADIUS. Each entry details the message description, severity, message text, message parameters and their types, and the recommended remedy, so administrators can interpret a log entry and decide on corrective action. Instructions in the introduction explain how to locate a message by searching for the component and message name shown in angle brackets in the switch log. New in this version is the IQAgent component, which adds 31 messages covering ExtremeCloud IQ connectivity, DNS and DHCP discovery, redirector association, configuration updates, image upgrades, agent start and stop, and the idle state entered after a prolonged failure to connect. The ipSecur component gains seven messages for IPv6 First-Hop Security, including rogue DHCPv6 server detection, RA Guard and Neighbor Discovery inspection violations, DHCPv6 binding changes and lease expiration, and source IPv6 lockdown. The text of the licMgr.FeatTimeExpSoon message was also revised to state that the license check failed and that the license assignment expires in the number of days shown. Administrators and support engineers can use these messages to monitor system events and troubleshoot network issues.