daily security run output with errors?

Curious if someone with wisdom could tell me to not be concerned?


nastest.local.nastest kernel log messages:
> vnet0:1: link state changed to DOWN
> epair0b: link state changed to DOWN
> em0: link state changed to DOWN
> in6_purgeaddr: err=65, destination address delete failed
> em0: link state changed to UP
> epair0a: Ethernet address: 02:b6:d0:00:05:0a
> epair0b: Ethernet address: 02:b6:d0:00:06:0b
> epair0a: link state changed to UP
> epair0b: link state changed to UP
> epair0a...

daily security run output with errors?