# https://salsa.debian.org/systemd-team/systemd/-/blob/debian/master/src/network/networkd-link.c#L774 (IPv6LL) and L2153 (Carrier)
^(\w{3} [ :[:digit:]]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ systemd-networkd\[[[:digit:]]+\]: [[:alnum:]-]+: Gained (carrier|IPv6LL)$
# https://salsa.debian.org/systemd-team/systemd/-/blob/debian/master/src/network/networkd-link.c#L2159
^(\w{3} [ :[:digit:]]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ systemd-networkd\[[[:digit:]]+\]: [[:alnum:]-]+: Lost carrier$
# https://salsa.debian.org/systemd-team/systemd/-/blob/debian/master/src/network/networkd-link.c#L2139 and L2145
^(\w{3} [ :[:digit:]]{11}|[0-9T:.+-]{32}) [._[:alnum:]-]+ systemd-networkd\[[[:digit:]]+\]: [[:alnum:]-]+: Link (UP|DOWN)$
|