Fabric Watch Administrator's Guide v7.0.0 (53-1002153-01, April 2011)

Fabric Watch Administrator’s Guide 9

53-1002153-01

Threshold monitoring using SNMP tables

Understanding the components of SNMP makes it possible to use third-party tools to view, browse,

and manipulate Brocade switch variables remotely. Every Brocade switch and director supports

SNMP.

When an event occurs and its severity level is at or below the set value, the Event Trap traps

(swFabricWatchTrap), are sent to configured trap recipients.

Once the switch status policy changes, Fabric Watch sends a connUnitStatusChange SNMP trap.

Any Fabric Watch RASLOG is converted into an swEventTrap.

In Fabric OS v6.4.0 and later, SNMP traps are identified by their bit mask and can be read directly

from the switch configuration.Refer to the Fabric OS Command Reference for information about

the following:

• Understanding SNMP basics

• How to enable or disable the sending of traps from the various MIBs

• SNMP trap bit mask values

• Loading Brocade management information bases (MIBs)

• SW-MIB traps

MIB capability configuration parameters

The mibCapability option turns certain MIBs and associated SNMP traps on or off. If a specific MIB

is disabled, the corresponding traps are also disabled. If any trap group is disabled, the

corresponding individual traps are also disabled.

Refer to the SW-MIB Objects chapter of the Fabric OS MIB Reference Guide for detailed information

about the following SNMP tables that can be used to manage thresholds:

• swFwClassAreaTable

• swFwThresholdTable

Fabric Watch event settings

Fabric Watch uses two types of settings: factory default settings and user-defined custom settings.

• Factory default settings are automatically enabled. These settings vary depending on hardware

platform, and cannot be modified.

• For some Fabric Watch parameters, you can create custom configurations to suit your unique

environment.

The fwSetToCustom command allows you to switch from default to custom settings. The command

assumes that a set of user-defined thresholds have been configured prior to executing the

fwSetToCustom command. If no user-defined settings exist, this command reapplies the default

values.