сообщение
Oct 18 08:05:46 bb RP/0/RSP0/CPU0:Oct 18 08:05:46.708 : ospf[1011]: %ROUTING-OSPF-5-ADJCHG : Process 1, Nbr 172.18.244.46 on TenGigE0/0/1/0 in area 0 from LOADING to FULL, Loading Done, vrf shpd vrfid 0x60000003

regexp
%ROUTING-OSPF-5-ADJCHG: Process \d+, Nbr (?P<neighbor>\S+) on (?P<interface>.+) in area (?P<area>\d+) from (?P<from_state>LOADING) to (?P<to_state>FULL), Loading Done, vrf (?P<vrf>\S+).+$