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Monitoring Cisco Switch with SNMP
Posted: Mon Feb 23, 2026 8:13 pm
This is about monitoring Cisco catalyst access switch C9200L. Knowing that we can make use of the Network switch configure to auto discover all the switch ports, etherchannel, stack ports, etc. However, we don't see the CPU usage, Memory usage, Fans condition, Volts, more towards the core operations of the switch. BTW, do we have to download and cisco mib(s) so as we can monitor all these mentioned performance counters? Please enlighten!
Soo How,
Re: Monitoring Cisco Switch with SNMP
Posted: Mon Feb 23, 2026 11:58 pm
by kg2857
You can use check_snmp to check most anything in the switch, but you need to figure out which OIDs to use. You can search nagios exchange for plugins. You should use traps sent from the switch to create alerts as well. For this you need to install Cisco MIBs.
Re: Monitoring Cisco Switch with SNMP
Posted: Tue Feb 24, 2026 3:40 am
Hi,
Can you show how this can be achieve go step-by-step?
Thanks,
Soo How
Re: Monitoring Cisco Switch with SNMP
Posted: Tue Feb 24, 2026 9:13 pm
by Mikasa23
[email protected] wrote: ↑Mon Feb 23, 2026 8:13 pm
This is about monitoring Cisco catalyst access switch C9200L. Knowing that we can make use of the Network switch configure to auto discover all the switch ports, etherchannel, stack ports, etc. However, we don't see the CPU usage, Memory usage, Fans condition,
Cool Games Volts, more towards the core operations of the switch. BTW, do we have to download and cisco mib(s) so as we can monitor all these mentioned performance counters? Please enlighten!
Soo How,
Hi Soo How, to monitor CPU, memory, and hardware sensors on your Cisco Catalyst 9200L with Nagios XI, you’ll need SNMP enabled and the relevant Cisco MIBs (e.g., PROCESS, MEMORY, ENTITY-SENSOR) imported so Nagios can query the correct OIDs. Interface auto-discovery alone won’t expose those core performance metrics.