Simple Network Management Protocol (SNMP) | 19116Simple Network Management Protocol (SNMP)Network management stations use the Simple Network Management Protocol (SNMP) to retrieve or altermanagement data from network elements. A datum of management information is called a managedobject; the value of a managed object can be static or variable. Network elements store managed objects ina database called a Management Information Base (MIB).MIBs are hierarchically structured and use object identifiers to address managed objects, but managedobjects also have a textual name called an object descriptor.Implementation Information• FTOS supports SNMP version 1 as defined by RFC 1155, 1157, and 1212, SNMP version 2c asdefined by RFC 1901.Configuring the Simple Network Management ProtocolConfiguring SNMP version 1 or version 2 requires only a single step:1. Create a community. See page 192.Important Point to Remember• Typically, 5-second timeout and 3-second retry values on an SNMP server are sufficient for both LANand WAN applications. If you experience a timeout with these values, increase the timeout value togreater than 3 seconds, and increase the retry value to greater than 2 on your SNMP server.Note: An Aggregator supports standard and private SNMP MIBs, including Get operations in supportedMIBs.Note: The configurations in this chapter use a UNIX environment with net-snmp version 5.4. This is onlyone of many RFC-compliant SNMP utilities you can use to manage the Aggregator using SNMP. Also,these configurations use SNMP version 2c.Note: SNMP version 3 is not supported on the Aggregator.
