Administrator Guide

Fabric OS Administrator’s Guide 209
53-1002920-02
Simple Network Management Protocol
7
Once loaded, the MAX-ACCESS provides access levels between the agent and management station.
The access levels are as follows:
• not accessible
You cannot read or write to this variable.
• read create
Specifies a tabular object that can be read, modified, or created as a new row in a table.
• read only - Public
You can only monitor information.
• read-write - Private
You can read or modify this variable.
• accessible-to-notify
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 212.
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.