Interface names and speeds are not updated for some Viptela devices

Document ID : KB000103832
Last Modified Date : 29/06/2018
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Some Viptela devices are not updating their names, descriptions, and speeds in NFA.

Clicking the "Rediscover" button works and says "Profile Found", but clicking the "Refresh" button fails, hence the interface, names, descriptions, and speeds are not updated.
NFA 9.3.6 and earlier.
First verify there are no network issue or device side ACL's that are not allowing SNMP polls from the Harvester IP address.

If that all checks out, then upgrading to NFA to 9.3.8 should resolve the issue.

For tips on upgrading to NFA 9.3.8 review the Tech Tip: NFA 9.3.8 Upgrade Path and Tips  community post.