Brocade Communications Systems 8 Reference page 91

TABLE 5
System
Module
EM
ESS
ESWCH
EVMD
FABR
FABS
FBC
FCIP
FCMC
FCOE
FCPD
FCPH
FCR
FICON
FICON
CUP
FICU
FKLB
FLOD
FSPF
Fabric OS Message Reference
53-1001767-01
System Module Descriptions (Continued)
Description
The environmental monitor (EM) manages and monitors the various field replaceable units (FRUs),
including the port cards, control processor (CP) blades, blower assemblies, power supplies, and world
wide name (WWN) cards. EM controls the state of the FRUs during system startup, hot-plug
sequences, and fault recovery.
EM provides access to and monitors the sensor and status data from the FRUs and maintains the
integrity of the system using the environmental and power policies. EM reflects system status by way
of CLI commands, system light emitting diodes (LEDs), and status and alarm messages. EM also
manages some component-related data.
ESS (Exchange Switch Support) error messages indicate problems with the ESS module of the Fabric
OS. ESS is an SW_ILS mechanism utilized by switches to exchange vendor and support information.
ESWCH error messages indicate problems with the Ethernet switch module of Fabric OS.
This is the event management module.
FABRIC refers to a network of Fibre Channel switches. The FABRIC error messages come from the
fabric daemon. The fabric daemon follows the FC-SW-3 standard for the fabric initialization process,
such as determining the E_Ports, assigning unique domain IDs to switches, creating a spanning tree,
throttling the trunking process, and distributing the domain and alias lists to all switches in the fabric.
Fabric OS system driver module.
Firmware blade compatibility errors with control processor (CP).
Fibre Channel over IP port configuration messages over Sprint and Marathon Blade.
Fibre Channel miscellaneous messages relate to problems with the physical layer used to send Fibre
Channel traffic to and from the switch.
FCoE error messages indicate problems with the FCoE module of the Fabric OS.
The Fibre Channel Protocol daemon is responsible for probing the devices attached to the loop port.
Probing is a process the switch uses to find the devices attached to the loop ports and to update the
Name Server with the information.
Fibre Channel Physical Layer is used to send Fibre Channel traffic to and from the switch.
Fibre Channel router-related traffic and activity on the fabric or backend fabric.
The FICN-1xxx and FICN-5yyy messages are generated during FICON emulation processing on an FCIP
Tunnel.
FICU-#### messages indicate that something has occurred which affects the control unit port (CUP)
for the switch/director. These messages can mean anything from configuration-related failures to
internal software errors.
The FICON-CUP daemon handles communication with fibre connectivity (FICON) on IBM FICON
storage devices. Errors to this module are usually initiation errors or indications that FICON-CUP
prerequisites have not been met, such as a license key, core process ID (PID), and secure mode on
the fabric.
Fabric OS I/O kernel library module.
FLOD is a part of the fabric shortest path first (FSPF) protocol that handles synchronization of the link
state database (LSDB) and propagation of the link state records (LSRs).
Fabric shortest path first (FSPF) is a link state routing protocol that is used to determine how frames
should be routed. These messages are about protocol errors.
System Module Descriptions
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