interface GigabitEthernet1
interface GigabitEthernet2
 ip ospf network broadcast
 ip ospf resync-timeout 10
 ip ospf dead-interval 5
 ip ospf priority 25
 ip ospf demand-circuit ignore
 ip ospf bfd
 ip ospf adjacency stagger disable
 ip ospf ttl-security hops 50
 ip ospf shutdown
 ip ospf 10 area 30
 ip ospf cost 5
 ipv6 ospf priority 55
 ipv6 ospf transmit-delay 45
 ipv6 ospf database-filter all out
 ipv6 ospf adjacency stagger disable
interface GigabitEthernet3
 ipv6 ospf adjacency stagger disable
 ipv6 ospf priority 20
 ipv6 ospf transmit-delay 30
interface GigabitEthernet4
