OSPFv3 event logging, such as neighbor state changes and database overflow conditions, can be disabled and re-enabled.
device# configure terminal
device(config)# ipv6 router ospf
device(config-ipv6-router-ospf-vrf-default-vrf)# no log
The following example re-enables the logging of OSPFv3 events.
device# configure terminal device(config)# ipv6 router ospf device(config-ipv6-router-ospf-vrf-default-vrf)# log all