network device monitoring

[shodan524]

Hi everyone,

I want to monitor my network devices (switches and routers). For example on switches, I want to get information only on some uplink interfaces status(up, down, bandwidth utilization) and CPU. I don't want to get information on all other interfaces when they are coming up and down. How can I configure this?

If possible please provide examples.

Thanks in advance.

[mattjones03]

Hi Shodan,

It's worth using a dedicated monitoring product for this.

I would recommend from experience Paessler PRTG. There is a free version available on their website that will give you a feel for its capabilities. You would be needing to use the "SNMP Traffic Sensor" to achieve your interface status requirements, and the "Cisco SNMP System Health Sensor" for the CPU.

You will have to enable SNMP on your routers and switches, with the appropriate SNMP community defined.

If you require any assistance, don't hesitate to ask.

[shodan524]

Hi Mattjones03,

Thank you for your reply. I will try that software. But I was wondering, are there any command line configuration on switches or router, which can limit sending snmp information like I asked before, or it should be done through software?

Thanks.

[mattjones03]

Hi Shodan,

You can indeed limit these by defining the SNMP traps you require;

http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/13506-snmp-traps.html

This is from a CLI perspective.

[shodan524]

Hi Mattjones03,

Thank you for link.