Administrator Guide

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 denes 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 specied 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}
Example of Reading the Value of a Managed Object
Example of Reading the Value of the Next Managed Object
Example of Reading the Value of Many Managed Objects at Once
Example of the OID Display
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
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (32856932) 3 days,
19:16:09.32
> 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
SNMPv2-MIB::sysName.0 = STRING:
> snmpwalk -v 2c -c mycommunity 10.11.209.217 .1.3.6.1.2.1.1
SNMPv2-MIB::sysDescr.0 = STRING: Dell Networking OS
Operating System Version: 1.0
Application Software Version: E8-3-16-0
Series: MXL-10/40GbE
Copyright (c) 1999-2012 by Dell Inc. All Rights Reserved.
Build Time: Tue May 22 22:40:56 PDT 2012
SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.6027.1.4.1
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (256676) 0:42:46.76
SNMPv2-MIB::sysContact.0 = STRING:
SNMPv2-MIB::sysName.0 = STRING: FTOS
SNMPv2-MIB::sysLocation.0 = STRING:
SNMPv2-MIB::sysServices.0 = INTEGER: 4
In the following example, the value 4 displays in the OID before the IP address for IPv4.
>snmpwalk -v 2c -c public 10.11.195.63 1.3.6.1.2.1.4.34
IP-MIB::ip.34.1.3.1.4.1.1.1.1 = INTEGER: 1107787778
IP-MIB::ip.34.1.3.1.4.2.1.1.1 = INTEGER: 1107787779
IP-MIB::ip.34.1.3.2.16.254.128.0.0.0.0.0.0.2.1.232.255.254.139.5.8 = INTEGER: 1107787778
IP-MIB::ip.34.1.4.1.4.1.1.1.1 = INTEGER: 1
IP-MIB::ip.34.1.4.1.4.2.1.1.1 = INTEGER: 1
IP-MIB::ip.34.1.4.2.16.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.1 = INTEGER: 1
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Simple Network Management Protocol (SNMP)