Dell Networking 7048 Configuration Manual page 1012

exit
interface te1/0/21
switchport mode trunk
exit
interface vlan 104
ip address 172.21.3.2 255.255.255.0
routing
ip ospf hello-interval 1
ip ospf dead-interval 4
ip ospf network point-to-point
exit
interface te1/0/22
switchport mode trunk
exit
interface loopback 0
ip address 172.21.254.2 255.255.255.255
exit
exit
4 R3 config:
terminal length 0
config
line console
serial timeout 0
exit
ip routing
router ospf
router-id 3.3.3.3
network 172.21.0.0 0.0.255.255 area 0
timers spf 3 5
exit
vlan 103
exit
interface vlan 103
ip address 172.21.1.1 255.255.255.0
routing
ip ospf hello-interval 1
ip ospf dead-interval 4
ip ospf network point-to-point
exit
interface te1/0/21
switchport mode trunk
exit
interface loopback 0
ip address 172.21.254.2 255.255.255.255
exit
1012
Configuring OSPF and OSPFv3