Problem Discovering Cisco Nexus Switch - missing Network Adapters

[Jimbo2]

Hi All,

We are having issues with Cisco Nexus switches discovering the Network Adapters.

We are using OOTB Network Switch pattern using the ipAdEntAddr oid 1.3.6.1.2.1.4.20.1.1

However this is incorrectly returning the wrong IP Address value hence "Get ipAddrTable" step is incorrectly using the wrong ipAdEntifIndex in "Match interfaces to addresses" step removing all unmatched in $networkAdaptesTable.

When I check the networkAdapesTable in "Create a copy of the ifTable for NICs calculation" step I see the ifIndex used is ifType 24 which is a loopback for that incorrect IP Address.

"Keep only interfaces with ipv4" step does not find anything with ip_version field and result with none of the Network Adapters being inserted.

Is this a bug in ServiceNow pattern, or is this a Cisco Nexus bug?

Could the IP Address be out of order and hence picking up the wrong IP Address?

I have tried using a mentioned workaround oid ciiIPAddress 1.3.6.1.4.1.9.9.309.1.1.2.1.2, but this too returns the same incorrect IP Address as the original oid.

Has anyone been able to resolve this puzzle?

I've asked Network team to investigate, but everything they have tried always returns the same wrong IP Address result.

Thanks in Advance

Jim

[adilrathore]

Create a copy of the ifTable for NICs calculation does not have the ifType 24 check.

Have you tried to revert the pattern to OOB and then test. It can be the case that the pattern is customized and does not have the latest fixes.

[Jimbo2]

Hi adilrathmore, I have updated to the latest pattern OOTB and still same problem.

Question for you:

1. Are you able to discover the Network Adapters in your Cisco Nexus Switches?

2. Which Cisco Nexus Switch(es) Model(s) are you successfully discovering all the Network Adapters?

Jim