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Turn off hardware polling for ICMP nodes.?

M33DLO

Morning guys/gals.

We have a stack of ICMP only nodes being monitored for basic up-downs etc.

They fail the hardware health monitoring with 'undefined' which looks scruffy on our screens.

Not to mention the countless questions I get from colleagues asking why its broken.

Surely if the node is a ICMP node then it should not even attempt to check hardware status?

Can this SNMP only feature be disabled somehow for ICMP nodes. ?

Find more posts tagged with

hardware health

icmp

Accepted answers

All comments

bobmarley

I have never seen this before with a straight up ICMP only node. Is it possible they used to be SNMP managed and someone changed them back to ICMP only? I have seen similar behavior when that has been done, or when someone changes the community string on a SNMP node at the node side and doesn't tell anyone. Try deleting and re-adding one as ICMP only and see if it fixes it. That's what I have done in the past.

M33DLO

I'm sure these nodes have always been an ICMP node, created this way and not changed from SNMP..

This is the reply from SW TAC today:

" It is expected behavior that the Hardware health monitoring would show as Undefined state because no information for it can be polled if the device is polled via ICMP, (ICMP would only be able to poll status, response time and packet loss) Hardware health monitoring is polled via SNMP so it showing as Undefined state is a normal behavior. "

So it is expected to happen.

I have asked if it can be turned off.

Seems like a flaw in the system; that ICMP nodes still try to use SNMP with no options to disable..

rharland2012

This is really strange - are you seeing that 'could not poll' message on the Node Details page for the device in question?

M33DLO

Yes in the node details page or in node management like below:

And in the node details page:

rharland2012

Hm, that's really weird. I don't see it on my ICMP node details view or via node management. I even double-checked the column selections as well - just shows up as blank if I enable the 'Overall Hardware Status (Node) column. What version of NPM are you on currently?

M33DLO

OK, deleting the node, then re-adding again has solved it.. Thumbs up to BobMarley for his suggestion.

Maybe they were added as SNMP once but then changed to ICMP as a bulk.

So I have over 150 nodes to re-add, unless SW TAC can help me out.?

The behaviour is now what I expect, an ICMP node just using ICMP and not trying to poll the hardware.

But why does SW TAC think what I was experiencing was the correct behaviour:

Odd.