The MIB module for the management of locks on a Fibre Channel Fabric. A Fibre Channel Fabric lock is used to ensure serialized access to some types of management data related to a Fabric, e.g., the Fabric's Zoning Database. Some (managing) applications generate Fabric locks by initiating server sessions. Server sessions are defined generically in FC-GS-5 to represent a collection of one or more requests to the session's server, e.g., to the Zone Server. Such a session is started by a Server Session Begin (SSB) request, and terminated by a Server Session End (SSE) request. The switch receiving the SSB is called the 'managing' switch. Some applications require the 'managing' switch to lock the Fabric for the particular application, e.g., for Enhanced Zoning, before it can respond successfully to the SSB. On receipt of the subsequent SSE, the lock is released. For this usage, the managing switch sends an Acquire Change Authorization (ACA) request to other switches to lock the Fabric. For some other applications, a managing switch locks the Fabric using an Enhanced Acquire Change Authorization (EACA) request, which identifies the application on whose behalf the Fabric is being locked with an Application_ID. Fabric locks can also be requested more directly, e.g., through the use of this MIB. In these situations, the term 'managing' switch is used to indicate the switch that receives such a request and executes it by issuing either ACA or EACA requests to other switches in the Fabric. This MIB module defines information about the 'managing' switch for currently-active Fabric locks. Copyright (C) The IETF Trust (2007). This version of this MIB module is part of RFC 4936; see the RFC itself for full legal notices.