16.6.2 IPv6 inventory following deactivation of the IPv6 management feature

Once NNMi completely discovers your IPv6 inventory, you can enable NNMi to clean it up automatically in the following scenarios:

You turned on the master IPv6 switch, then turned it off and restarted NNMi.

NNMi does not immediately remove the IPv6 inventory. NNMi removes the IPv6 inventory for SNMP nodes during the next discovery cycle. For nodes whose management address is an IPv6 address, their management addresses remain as is. NNMi does not remove non-SNMP IPv6 nodes. You must manually delete the nodes whose IPv6 data remains from the NNMi inventory.