946 | Simple Network Management Protocol (SNMP)w w w . d e l l . c o m | s u p p o r t . d e l l . c o m 1. Create a community. See page 947.Configuring SNMP version 3 requires you to configure SNMP users in one of three methods. See SettingUp User-based Security (SNMPv3).Related Configuration TasksThe following list contains configuration tasks for SNMP:• Managing Overload on Startup• Read Managed Object Values• Write Managed Object Values• Subscribe to Managed Object Value Updates using SNMP• Copy Configuration Files Using SNMP• Manage VLANs using SNMP• Enable and Disable a Port using SNMP• Fetch Dynamic MAC Entries using SNMP• Deriving Interface Indices• Monitor Port-channelsImportant Points 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.• User ACLs override group ACLs.Setting up SNMPAs previously stated, FTOS supports SNMP version 1 and version 2 which are community-based securitymodels. The primary difference between the two versions is that version 2 supports two additional protocoloperations (informs operation and snmpgetbulk query) and one additional object (counter64 object).SNMP version 3 (SNMPv3) is a user-based security model that provides password authentication for usersecurity and encryption for data security and privacy. Three sets of configurations are available for SNMPread/write operations: no password or privacy, password privileges, password and privacy privilegesA maximum of 16 users can be configured even if they are in different groups.
