I have some Light-weight access points in my environment. Network team wants me to deploy ping-checks on it using NNMi 9.20. I can do it with ICMP polling. They can't enable SNMP configuration on these access points.
But my question at first place, are non-SNMP devices react faithfully to ICMP checks by NNMi? Can I configure management events for such nodes.
Yes, you can monitor devices via ICMP only. You might just need to check your monitoring policies. Obviously there's not a lot of information you can get out of them!
It depends a bit on your network, but monitoring APs via ICMP can be problematic. One challenge some customers face is the use of DHCP for APs. Since the IPs can change, it can make monitoring tricky.
What you might want to investigate is monitoring the controllers, and getting SNMP traps from the controllers. The controllers should have a better view of the status of the Access Points, and you might be able to get more meaningful data from the SNMP traps they generate if an AP goes offline.
It's a shame that HP doesn't (as far as I know) offer good out of the box integration with the wireless controllers, as this is a common network requirement.
I understand your point, but they are still insistent. The WAPs have static IP, that may help a bit.
I was trying to observe some devices in NNMi , for which SNMP configuration has not been enabled. So, technically, they are just on ICMP polling. But even if they go down, management events don't get generated for them, which may be understandable too due to non-SNMP configuration.
Is there a way out to generate incidents for such cases?
Basically when nodes are unknown this is because the there are island nodes or because the root device is down so NNMi will add all the devices behind that specific like unknown.
So basically if a node is in unknown state this will not generate any alert. if some nodes are really critical and you want to know the status, you can add these particular devices in the important nodes nodegroup.
You can probably would like to check how the the causal engine work in NNMI so you can have a better idea how NNMI declare a node as nodedown or unknow state.
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