How to check the OID and SNMPWalk read supported by the device
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Network Topology
irrelevant
Problem Description
How to check the OID and SNMPWalk read supported by the device
Process Analysis
1.Obtain the supported OID from the device
2. Read the related OID on the device where SNMPWalk is installed
3. Check whether the real-time values on the device are consistent
Solution
- Find the correct oid on device, I just execute this command on H3C-R3600.
<Router>dis snmp-agent mib-node | inc Usage
|-pethMainPowerUsageOnNotification<1.3.6.1.2.1.105.0.2>(NA)
|-pethMainPowerUsageOffNotification<1.3.6.1.2.1.105.0.3>(NA)
|-*pethMainPseUsageThreshold<1.3.6.1.2.1.105.1.3.1.1.5>(RW)
|-*isisISAdjUsage<1.3.6.1.2.1.138.1.6.1.1.8>(RO)
|-*hh3cEntityExtCpuUsage<1.3.6.1.4.1.25506.2.6.1.1.1.1.6>(RO)
|-*hh3cEntityExtCpuUsageThreshold<1.3.6.1.4.1.25506.2.6.1.1.1.1.7>(RW)
|-*hh3cEntityExtMemUsage<1.3.6.1.4.1.25506.2.6.1.1.1.1.8>(RO)
- snmpwalk this oid to get the cpu usage of device
[root@centos snmp]# snmpwalk -v 2c -c public 1.1.1.1 1.3.6.1.4.1.25506.2.6.1.1.1.1.6.14
SNMPv2-SMI::enterprises.25506.2.6.1.1.1.1.6.14 = INTEGER: 17
[root@centos snmp]# snmpwalk -v 2c -c public 1.1.1.1 1.3.6.1.4.1.25506.2.6.1.1.1.1.6.14
SNMPv2-SMI::enterprises.25506.2.6.1.1.1.1.6.14 = INTEGER: 22
[root@centos snmp]# snmpwalk -v 2c -c public 1.1.1.1 1.3.6.1.4.1.25506.2.6.1.1.1.1.6.14
SNMPv2-SMI::enterprises.25506.2.6.1.1.1.1.6.14 = INTEGER: 15
[root@centos snmp]# snmpwalk -v 2c -c public 1.1.1.1 1.3.6.1.4.1.25506.2.6.1.1.1.1.6.14
SNMPv2-SMI::enterprises.25506.2.6.1.1.1.1.6.14 = INTEGER: 36
[root@centos snmp]# snmpwalk -v 2c -c public 1.1.1.1 1.3.6.1.4.1.25506.2.6.1.1.1.1.6.14
SNMPv2-SMI::enterprises.25506.2.6.1.1.1.1.6.14 = INTEGER: 99
- check the cpu usage on device
<Router>dis cpu-usage
Unit CPU usage:
15% in last 5 seconds
17% in last 1 minute
16% in last 5 minutes
<Router>dis cpu-usage
Unit CPU usage:
16% in last 5 seconds
15% in last 1 minute
16% in last 5 minutes
<Router>dis cpu-usage
Unit CPU usage:
19% in last 5 seconds
15% in last 1 minute
16% in last 5 minutes
<Router>dis cpu-usage
Unit CPU usage:
19% in last 5 seconds
15% in last 1 minute
16% in last 5 minutes
<Router>dis cpu-usage
Unit CPU usage:
21% in last 5 seconds
15% in last 1 minute
16% in last 5 minutes
<Router>dis cpu-usage
Unit CPU usage:
21% in last 5 seconds