Users Guide

Implementation Information
The Dell Networking OS supports SNMP version 1 as defined by RFC 1155, 1157, and 1212, SNMP version 2c as defined by RFC 1901.
Configuring the Simple Network Management
Protocol
NOTE: The configurations in this chapter use a UNIX environment with net-snmp version 5.4. This is only one of many RFC-
compliant SNMP utilities you can use to manage the Aggregator using SNMP. Also, these configurations use SNMP version 2c.
Configuring SNMP version 1 or version 2 requires only a single step:
1 Create a community.
NOTE: IOA supports only Read-only mode.
Important Points to Remember
• Typically, 5-second timeout and 3-second retry values on an SNMP server are sufficient for both local area network (LAN) and wide
area network (WAN) applications. If you experience a timeout with these values, increase the timeout value to greater than 3 seconds,
and increase the retry value to greater than 2 seconds on your SNMP server.
Setting up SNMP
Dell Networking OS supports SNMP version 1 and version 2 which are community-based security models. The primary difference between
the two versions is that version 2 supports two additional protocol operations (informs operation and snmpgetbulk query) and one
additional object (counter64 object).
Creating a Community
For SNMPv1 and SNMPv2, create a community to enable the community-based security in the Dell Networking OS.
The management station generates requests to either retrieve or alter the value of a management object and is called the SNMP
manager. A network element that processes SNMP requests is called an SNMP agent. An SNMP community is a group of SNMP agents
and managers that are allowed to interact. Communities are necessary to secure communication between SNMP managers and agents;
SNMP agents do not respond to requests from management stations that are not part of the community.
The Dell Networking OS enables SNMP automatically when you create an SNMP community and displays the following message. You
must specify whether members of the community may retrieve values in Read-Only mode. Read-write access is not supported.
22:31:23: %RPM1-P:CP %SNMP-6-SNMP_WARM_START: Agent Initialized - SNMP WARM_START.
To create an SNMP community:
• Choose a name for the community.
CONFIGURATION mode
snmp-server community name ro
Example of Creating an SNMP Community
To view your SNMP configuration, use the show running-config snmp command from EXEC Privilege mode.
Dell(conf)#snmp-server community my-snmp-community ro
22:31:23: %RPM1-P:CP %SNMP-6-SNMP_WARM_START: Agent Initialized - SNMP WARM_START.
Simple Network Management Protocol (SNMP)
207