Administrator Guide

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.
Dell#show running-config snmp
!
snmp-server community mycommunity ro
Dell#
Reading Managed Object Values
You may only retrieve (read) managed object values if your management station is a member of the same
community as the SNMP agent.
Dell Networking supports RFC 4001, Textual Conventions for Internet Work Addresses that defines values
representing a type of internet address. These values display for ipAddressTable objects using the snmpwalk
command.
There are several UNIX SNMP commands that read data.
• Read the value of a single managed object.
snmpget -v version -c community agent-ip {identifier.instance |
descriptor.instance}
• Read the value of the managed object directly below the specified object.
snmpgetnext -v version -c community agent-ip {identifier.instance |
descriptor.instance}
• Read the value of many objects at once.
snmpwalk -v version -c community agent-ip {identifier.instance |
descriptor.instance}
In the following example, the value “4” displays in the OID before the IP address for IPv4. For an IPv6 IP
address, a value of “16” displays.
Example of Reading the Value of a Managed Object
> snmpget -v 2c -c mycommunity 10.11.131.161 sysUpTime.0
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (32852616) 3 days, 19:15:26.16
> snmpget -v 2c -c mycommunity 10.11.131.161 .1.3.6.1.2.1.1.3.0
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (32856932) 3 days, 19:16:09.32
Simple Network Management Protocol (SNMP) 841