dition to browsing the loaded MIBs, the MibBrowser can be used to view and operate on the data that are available through an SNMP agent. The MibBrowser can be configured in a way that is consistent with the carrying out of SNMP operations. Common parameters are set in the MibBrowser "Mib Settings" frame. The "General" frame is displayed in Figure 4.4. General settings include the basic SNMP protocol OSS for Telecom Networks A AdventNet MibBrowser File Edit View Operations Help localhost Community public Set Value Write Community internet ContextNa ContextEngineID directory Object ID iso.org.dod.internet.mgmt.mib-2.system.sysDescr.0 mib-2 system sysDescr Sent get request to localhost: 161 sysObjectID sysUpTime sysDescr.0:->Microsoft Corp. Windows 98. sysContact sysName sysLocation sysServices interfaces Syntax DisplayString (SIZE (0..2 Status mandatory Access read-only Reference Index Object ID 1.3.6.1.2.1.1.1 A textual description of the entity. This value should include the full name and version Description identification of the system's hardware type, Global View software operating-system, and networking Figure 4.3 MibBrowser main window. A MibBrowser Settings General Mib Settings v3Settings Snmp Version Snmp_Version1 Graph Type Line Graph Snmp Port Trap Port Timeout Retries Max-Repetitions Non-Repeaters Display Result Display MIB Description Multi-Varbind Encoding ISO8859_1 Apply Cancel Figure 4.4 General settings of the MibBrowser. 4 Network Management Using SNMP Table 4.1 General setting parameters. Options Default values Other values SNMP version v2c or v3 SNMP port Any user-defined port Timeout Any user-defined value Max-repetitions Any user-defined value Graph type Line graph Bar type Trap port User-defined value Retries User-defined value Non-repeaters User-defined value A MibBrowser Settings General Mib Settings v3Settings Load MIBs directly Load MIBs From Compiled File Overwrite existing Compiled MIB Files Load MIBs From Database Overwrite MIBs in Database Recently Loaded MIBs Updated List C:PProgram F