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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.
> 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
The following example shows reading the value of the next managed object.
> snmpgetnext -v 2c -c mycommunity 10.11.131.161 .1.3.6.1.2.1.1.3.0
SNMPv2-MIB::sysContact.0 = STRING:
> snmpgetnext -v 2c -c mycommunity 10.11.131.161 sysContact.0
The following example shows reading the value of the many managed objects at one time.
> snmpwalk -v 2c -c mycommunity 10.11.131.161 .1.3.6.1.2.1.1
SNMPv2-MIB::sysDescr.0 = STRING: Dell EMC Real Time Operating System Software
Dell Operating System Version: 1.0
Dell Application Software Version: E_MAIN4.9.4.0.0
Copyright (c) 1999-2014 by Dell
Build Time: Mon May 12 14:02:22 PDT 2008
SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.6027.1.3.1
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (32920954) 3 days, 19:26:49.54
SNMPv2-MIB::sysContact.0 = STRING:
Writing Managed Object Values
You may only alter (write) a managed object value if your management station is a member of the same community as the
SNMP agent, and the object is writable.
Use the following command to write or write-over the value of a managed object.
● To write or write-over the value of a managed object.
snmpset -v version -c community agent-ip {identifier.instance |
descriptor.instance}syntax value
> snmpset -v 2c -c mycommunity 10.11.131.161 sysName.0 s "R5"
SNMPv2-MIB::sysName.0 = STRING: R5
Configuring Contact and Location Information using
SNMP
You may configure system contact and location information from the Dell EMC Networking system or from the management
station using SNMP.
To configure system contact and location information from the Dell EMC Networking system and from the management station
using SNMP, use the following commands.
● (From a Dell EMC Networking system) Identify the system manager along with this person’s contact information (for
example, an email address or phone number).
CONFIGURATION mode
snmp-server contact text
Simple Network Management Protocol (SNMP)
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