DISCOVER LOOPBACK INTERFACE IN CA PM

[GPD]

How can I discover a router's loopback interfaces and start displaying them.

In the standard configuration it does not discover or is not displayed.

Cássio - GPD

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Analista
Cia de Tecnologia da Informação de Minas Gerais - PRODEMGE
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[Kishan.SilvaRatnayake]

Hello,

The reason CAPM doesn't discover loopback interfaces OOTB is because the OOTB certification has a filter that filters them out:

ifType 24 is loopback interfaces, so it ignores them.

What you can do is extend the OOTB cert so you update the filter - example:

<DataModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" namespace="http://im.ca.com/certifications/snmp" xsi:noNamespaceSchemaLocation="SNMPCertificationFacet.xsd">
<Author>CA</Author>
<Version>2.02</Version>
<FacetType name="IfXTableMib" descriptorClass="com.ca.im.core.datamodel.certs.CertificationFacetDescriptorImpl">
<FacetOf namespace="http://im.ca.com/core" name="Item"/>
<Expressions>
<ExpressionGroup destCert="{http://im.ca.com/normalizer}NormalizedPortInfo" name="PortNRMDS">
<Filter>(ifType!=1)</Filter>
</ExpressionGroup>
</Expressions>
</FacetType>
</DataModel>

You would perform a PUT against http://DAHOST:8581/typecatalog/certifications/snmp/extension/IfXTableMib and send the XML above. If you have already extended the OOTB vendor cert, make sure those changes are part of this change.

Regards,
Kishan

[Michael Poller]

Beat me to it Kishan! :)

Additional info can be found in the following Knowledge Base article.

https://knowledge.broadcom.com/external/article/31742

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Technical Support Engineer IV
Broadcom
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[GPD]

Hello,

Michael.

I couldn't identify the VC symbology, at the end of the DA's access address. "I couldn't find the page"

VC = vendor certification ? Or ?

the product manufacturing is Cisco Systems.

Cássio - GPD

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Analista
Cia de Tecnologia da Informação de Minas Gerais - PRODEMGE
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[Michael Poller]

Correct, VC is short for Vendor Certification.

<VC Name> in the end of the URLs would be replaced with the internal VC name involved.

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Technical Support Engineer IV
Broadcom
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[Jeffrey Pinard]

The only caveat with discovering loopback is 127.0.0.1 addresses.

You may want to add a monitoring profile to somehow exclude those from being polled.

If 127.0.0.1 interfaces are synced to PC, and you have Virtual Machine devices being discovered with 127.0.0.1 (because some reason they are), it could cause many devices to be reconciled based on 127.0.0.1 to 1+ device with 127.0.0.1 as the primary device IP.