Snmp MIBs support, MIB overview | HP Ethernet BL-c specs

SNMP MIBs support

In this section
MIB overview	48
SNMP Manager software	48
Supported MIBs	49
Supported traps	49

MIB overview

Management and statistics information is stored in the switch in the MIB. The switch supports several standard MIBs. Values for MIB objects are retrieved with any SNMP-based network management software.

In addition to the standard MIBs, the switch also supports its own proprietary enterprise MIB as an extended MIB. The proprietary MIB is retrieved by specifying the MIB OID at the network manager station.

MIB values are either read-only or read/write variables.

•Read-only MIB variables are constants that are programmed into the switch or variables that change while the switch is in operation. Examples of read-only constants include the number and types of ports. Examples of read-only variables are the statistics counters, such as the number of errors that have occurred or how many kilobytes of data have been received and forwarded through a port.

•Read/write MIB variables are usually related to user-customized configurations. Examples include the IP address of the switch, Spanning Tree Algorithm parameters, and port status.

SNMP Manager software

Using third-party vendor SNMP software to manage the switch allows access to proprietary enterprise MIBs for the switch. The MIBs are found in the utilities on the HP website (http://www.hp.com/go/bladesystem/documentation).

If the software provides functions to browse or modify MIBs, the MIB values (if the MIB attributes permit the write operation) are changeable. This process can be quite involved, because the MIB OIDs (available in the MIB files) must be used and retrieved one by one.

Use an SNMP manager, such as HP OpenView Network Node Manager or HP Systems Insight Manager, to access the enterprise-specific MIBs. Compile the MIBs into the MIB database and then use a MIB browser to navigate through them. For detailed information, access the individual descriptions of each MIB or see the documentation that came with the SNMP manager software.

The switch SNMP agent supports SNMP Version 1. Security is provided through SNMP community strings. The default community strings are "public" for SNMP GET operation and "private" for SNMP SET operation.

Users can specify up to two trap hosts for receiving SNMP traps. The agent sends the SNMP trap to the specified hosts when appropriate. Traps are not sent if there is no host specified.

SNMP MIBs support 48