beautypg.com

Snmp support, Traps, Fa traps – Brocade Fabric OS Administrators Guide (Supporting Fabric OS v7.3.0) User Manual

Page 187: Snmp support traps

background image

You can read this information only through traps.

SNMP support

In addition to the standard MIBs that Brocade devices support, these devices also support Brocade-
specific MIBs. Since different vendors vary the information in their private enterprise MIBs, it is
necessary to verify their information. The Fibre Channel MIB standards dictate that certain information
be included in all MIBs: it is the vendors' responsibility to follow the standards. The standards are as
follows:

• FibreAlliance (FA) MIB: Brocade supports v4.4.0 and later releases.
• Fabric Element (FE) MIB: accepted by the Internet Engineering Task Force (IETF).

Brocade supports FE_RFC2837.mib under the MIB-II branch in Fabric OS v7.1.0, v7.0.0, v6.4.1_fcoe,
v6.4.0, v6.3.0, v6.2.0, v6.1.2_CEE, v6.1.0, and v6.0.0. The latest version of the FE MIB references the
FRAMEWORK.MIB and, based on the MIB browser, it is necessary to load this MIB before the FE.MIB.
For more information, refer to

Loading Brocade MIBs

on page 190.

Traps

An unsolicited message that comes to the management station from the SNMP agent on the device is
called a trap . Brocade switches send traps out on UDP port 162 and to any configured port. In order to
receive traps, the management station IP address and severity level must be configured on the switch.
You can define a different message severity level for each recipient so that some recipients receive all
trap messages and others receive only the most critical.

NOTE
Due to design limitation, IP address validation cannot be done for trap recipients.

There are two main MIB trap choices:

• FibreAlliance MIB trap - Associated with the Fibre Alliance MIB (FA-MIB), this MIB manages SAN

switches and devices from any company that complies with Fibre Alliance specifications.

• Brocade-specific MIB trap - Associated with the Brocade-specific Brocade MIB (SW-MIB), manages

Brocade switches only.

There is some overlap in the functionality of these MIBs. If you enable both SW-MIB and FA-MIB traps,
you could receive duplicate messages for the switch events that trigger the trap.

You can also use these additional MIBs and their associated traps: HA-MIB; FICON-MIB; and
SWEXTTRAP. In Fabric OS v7.3.0, you can use the snmpConfig --set mibCapability command to
enable or disable all the MIBs and their related named traps.

An event trap (swEventTrap, connUnitEventTrap, or swFabricWatchTrap) is basically an error message
(errShow output) that is SNMP-formatted and delivered.

FA traps

Consider enabling the FA traps if you want to use SNMP to monitor multiple connectivity units, including
Brocade switches.

The switchStatusPolicySet command determines the FA-TRAP switch status-related outputs:

• connUnitStatusChange

SNMP support

Fabric OS Administrators Guide

187

53-1003130-01