Cabletron Systems 3Com manual Programmable Snmp Trap Support, Management protocol MIB, Using Snmp

Theory of Operation 25

Changing one AP does not affect the configuration of other APs on the network. Make configuration changes to APs individually. Each AP requires an individual IP address.

Programmable SNMP Trap Support

The SNMP protocol defines the method for obtaining information about networks operating characteristics and changing router and gateway parameters. The SNMP protocol consists of three elements:

■Management stations

■Management information

■Management protocol (MIB)

Nodes can perform as hosts, routers, bridges or other devices that can communicate status information. An SNMP Agent is a node that runs the SNMP management process to systematically monitor and manage the network. The management station performs network management by running application management software.

An SNMP trap is an alert to all configured management stations of some significant event that occurred on the network. The management station queries all stations for details of each specific event, including what, when and where the event took place and the current status of the node or network. The format or structure is defined in the SNMP protocol. The MIB defines what and who monitors the variables.

Using SNMP

The AP includes SNMP agent versions accessible through an SNMP manager application (HP Open View or Cabletron Spectrum MIB browser). The SNMP agent supports SNMP versions 1 and 2, MIB II, 802.11 MIB and one proprietary 3Com Management Information Base (MIB). The SNMP agent supports read-write, read-only or disabled modes. The AP supports traps that return to the SNMP manager when certain events occur. The Wireless LAN Installation and Utilities disk packaged with wireless clients contains the MIB.

Increased MIB Support

The MIB defines what the management station needs to understand and which objects the station manages. The MIB has ten categories defined with approximately 175 variables.