# , #Cisco? Telegram!

OSPF (Open Shortest Path First) - RIP EIGRP, :

  • router ospf PROCESS_NUMBER;
  • , , () network 255.255.255.255 0.0.0.255 AREA_NUMBER;

, OSPF - area. , PROCESS_NUMBER AREA_NUMBER . OSPF , . .


OSPF

R1 R2 .

 OSPF. OSPF network. , :
router ospf 1
network 10.0.1.0 0.0.0.255 area 0
network 172.16.0.0 0.0.255.255 area 0
router ospf 1
network 192.168.0.0 0.0.0.255 area 0
network 172.16.0.0 0.0.255.255 area 0

, , show ip ospf neighbors show ip route , RIP: . - , . , , , OSPF, O.


OSPF

, OSPF . , , , OSPF . (multiarea) OSPF .

OSPF, area 0 area 1. , R1 R2 0, R2 R3 1. R2 , ABR Area Border Router ( ). , R1 R3. , R1 :

router ospf 1
network 10.0.1.0 0.0.0.255 area 0
network 172.16.0.0 0.0.255.255 area 0
router-id 1.1.1.1
, OSPF RID OSPF .

R1 R2, R2 OSPF. R3 , R1, .

router ospf 1
network 192.168.0.0 0.0.0.255 area 1
network 90.10.0.0 0.0.0.255 area 1
router-id 3.3.3.3

R2 , R1 R3. , 0 R1 1 R2.

router ospf 1
network 172.16.0.0 0.0.255.255 area 0
network 192.168.0.0 0.0.0.255 area 1
router-id 2.2.2.2

show ip ospf neighbor show ip route ospf R1 R3. IA , .

R1 R3 , .

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