Dell Brocade 6520 Message Reference Supporting Fabric OS v7.1.0 - Page 54

1 System module descriptions TABLE 6 System module System module descriptions (Continued) Description LFM LFM error messages indicate problems with the logical fabric manager module that is responsible for making a logical switch use XISLs. This involves creating and managing LISLs in a logical fabric. LOG RASLog subsystem. LSDB The link state database is a part of the FSPF protocol that maintains records on the status of port links. This database is used to route frames. MCAST_SS The Multicast Sub-System messages indicate any problems associated with the Layer 2 and Layer 3 Multicast platform support, including allocation of global platform resources such as MGIDs, hardware acceleration resources for Multicast, and route programming into the hardware (Layer 2 EXM for IGMP Snooping). MFIC MS-FICON messages relate to Fibre Connection (FICON) installations. Fibre Connection control unit port (FICON-CUP) messages are displayed under the FICU module. MM MM message indicate problems with the management modules. MPTH Multicast path uses the shortest path first (SPF) algorithm to dynamically compute a broadcast tree. MQ Message queues are used for interprocess communication. Message queues allow many messages, each of variable length, to be queued. Any process or interrupt service routine (ISR) can write messages to a message queue. Any process can read messages from a message queue. MS MSTP The Management Service enables the user to obtain information about the Fibre Channel fabric topology and attributes by providing a single management access point. MS provides for both monitoring and control of the following areas: • Fabric Configuration Server: Provides for the configuration management of the fabric. • Unzoned Name Server: Provides access to Name Server information that is not subject to zone constraints. • Fabric Zone Server: Provides access to and control of zone information. MSTP error messages indicate problems with Multiple Spanning Tree Protocol modules of the Fabric OS. NBFS NS NSM ONMD NBFSM is a part of the Fabric Shortest Path First (FSPF) protocol that handles a neighboring or adjacent switch's finite state machine (FSM). Input to the FSM changes the local switch from one state to another, based on specific events. For example, when two switches are connected to each other using an interswitch link (ISL) cable, they are in the Init state. After both switches receive HELLO messages, they move to the Database Exchange state, and so on. NBFSM states are Down (0), Init (1), Database Exchange (2), Database Acknowledge Wait (3), Database Wait (4), and Full (5). Indicates problems with the simple Name Server module. NSM error messages indicate problems with the Interface Management and VLAN Management module of the Fabric OS. ONMD error messages indicate problems with the Operation, Administration and Maintenance module of the Fabric OS. PDM Parity data manager (PDM) is a user-space daemon responsible for the replication of persistent configuration files from the primary partition to the secondary partition and from the active CP blade to the standby CP blade. PDTR PDTR messages indicate panic dump trace files have been created. PLAT PLAT messages indicate hardware problems. PMGR A group of messages relating to logical switch creation, deletion, and configuration. 32 Fabric OS Message Reference 53-1002749-01