ifAlias field in CA Performance Management is truncated

Document ID : KB000047047
Last Modified Date : 14/02/2018
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Issue: 

ifAlias field in CA Performance Management is shorter than what is shown on the router command-line

Environment:  

CA Performance Management, all supported versions

Cause: 

The MIB is reporting a truncated value for ifAlias

We can verify the values returned from the device MIB, using snmpwalk:

ifAlias:

snmpwalk -v 2c -c <communityString> <ipAddress> 1.3.6.1.2.1.31.1.1.1.18


To get the list of ifDescr values to help identify the interfaces:

snmpwalk -v 2c -c <communityString> <ipAddress> 1.3.6.1.2.1.2.2.1.2


Resolution:

CA Performance Management will use what the MIB is reporting,
if the device MIB is reporting incorrect information this would need
to be addressed by the Vendor of the device

Additional Information:

 Interface Alias Names could be set as a workaround:

https://docops.ca.com/ca-performance-management/2-8/en/administrating/performance-center-rest-webservices/administration-web-services/devices-web-service/set-interface-name-aliases