OSPF多区域

配置命令：

AR1:
SYS
INT G0/0/1
IP ADD 172.16.1.1 24
Q
INT G0/0/0
IP ADD 172.16.2.1 24
Q
OSPF
AREA 0
NETWORK 172.16.1.0 0.0.0.255
NETWORK 172.16.2.0 0.0.0.255
AR2:
SYS
INT G0/0/1
IP ADD 172.16.3.1 24
Q
INT G0/0/0
IP ADD 172.16.2.2 24
Q
OSPF
AREA 0
NETWORK 172.16.3.0 0.0.0.255
NETWORK 172.16.2.0 0.0.0.255
AR3:
SYS
INT G0/0/1
IP ADD 172.16.4.1 24
Q
INT G0/0/0
IP ADD 172.16.1.2 24
INT G0/0/2
IP ADD 172.16.5.1 24
Q
OSPF
AREA 0
NETWORK 172.16.1.0 0.0.0.255
AREA 1
NETWORK 172.16.4.0 0.0.0.255
NETWORK 172.16.5.0 0.0.0.255
AR4:
SYS
INT G0/0/1
IP ADD 172.16.6.1 24
Q
INT G0/0/0
IP ADD 172.16.3.2 24
INT G0/0/2
IP ADD 172.16.7.1 24
Q
OSPF
AREA 0
NETWORK 172.16.3.0 0.0.0.255
AREA 2
NETWORK 172.16.6.0 0.0.0.255
NETWORK 172.16.7.0 0.0.0.255
AR5:
SYS
INT G0/0/0
IP ADD 172.16.4.2 24
Q
OSPF
AREA 1
NETWORK 172.16.4.0 0.0.0.255
AR6:
SYS
INT G0/0/0
IP ADD 172.16.5.1 24
Q
OSPF
AREA 1
NETWORK 172.16.5.0 0.0.0.255
AR7:
SYS
INT G0/0/0
IP ADD 172.16.6.2 24
Q
OSPF
AREA 2
NETWORK 172.16.6.0 0.0.0.255
AR8:
SYS
INT G0/0/0
IP ADD 172.16.7.2 24
Q
OSPF
AREA 2
NETWORK 172.16.7.0 0.0.0.255