Looks like Cisco has done enough changes in the MIB structures that they have adopted specially on the newer platforms that they have launched. Nexus family of switches now do not use the traditional MIB's.
For example, the earlier devices used to support the OID 1.3.6.1.3.60.1.1.1 for ipMRouteEnable but now the latest Nexus devices have the OID 1.3.6.1.2.1.168.1.1 for ipMcastEnabled.
The attached spreadsheet provides a comprehensive list of Multicast MIB's that are required to monitor Multicast on Cisco Nexus devices.
gangadhar.k rucha.v c_sameer abdhijasharma sagard chinmaychavan midhunmathew naina.jino
Please incorporate the latest Nexus MIB's into the Solarwinds MIB Database. The last known status of Solarwinds support for Multicast support is fairly outdated.
What object IDs (OIDs) does Orion NPM poll for information about multicast interfaces? - SolarWinds Worldwide, LLC. Help…
The complete MIB supported by Cisco Nexus devices
ftp://ftp.cisco.com/pub/mibs/supportlists/nexus3548/Nexus3548MIBSupportList.html
ftp://ftp.cisco.com/pub/mibs/supportlists/nexus5000/Nexus5000MIBSupportList.html
ftp://ftp.cisco.com/pub/mibs/supportlists/nexus6000/Nexus6000MIBSupportList.html
Hopefully, Solarwinds NPM product team can address this soon.