Some of our Cisco Routers have physical ports missing in Spectrum Report Manager.

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Article ID: 38947

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Updated On:

Products

CA Spectrum

Issue/Introduction

Some of our Cisco Routers have physical ports missing in Spectrum Report Manager.  

 

Cause

Spectrum uses the value of the ifConnectorPresent attribute (oid 1.3.6.1.2.1.31.1.1.1.17)  to determine if a port is physical and then report on it in SRM. 

For the ports in question (which are physical), the value in the mib for this oid is 0, meaning a physical connector is not present, so Spectrum deems it to be virtual and does not report on it.  


For the problematic devices, Cisco only sets this value to 1 for interfaces that have SFP connectors. Other physical connectors types (non SPF connector ports) will incorrectly have a value of zero and thus Spectrum reads no connector present.

The following is the mib description for ifConnectorPresent:

 

ifConnectorPresent OBJECT-TYPE

SYNTAX TruthValue {

true(1),

false(2)

}

ACCESS read-only

STATUS current

DESCRIPTION

"This object has the value 'true(1)' if the interface sublayer has a physical connector and the value 'false(2)' otherwise."

::= { ifXEntry 17 }

-- 1.3.6.1.2.1.31.1.1.1.1

Environment

-This is seen with some Cisco NX-OS devices but is not uniform across all.

Resolution

Cisco is aware of this problem so please contact them for further details of a resolution.