ospf在nbma下的五种网络类型

1、OSPF NBMA 首先将R1 frame-relay !erface Serial1/0 no ip addressencapsulation OSPF NBMA 首先将R1 frame-relay !erface Serial1/0 no ip addressencapsulation frame-relay clock rate 64000!lmi-type f-type dce route 101erface no ip address encapsulation frame-relay clock rate 64000lmi-type f-type dce route 102erfa

2、ce R2 R3 erface ip address 2.2.2.2 !erface iperface ip address 2.2.2.2 !erface ip address 12.1.1.2 255.255.255.0 encapsulation frame-relayserial restart-delay frame-relay map ip 12.1.1.3 101 broadcast no frame-relay inverse-arp!router ospf router-id network 2.2.2.0 0.0.0.255 area network 12.1.1.0 0.

3、0.0.255 area erface ip address 3.3.3.3 !erface ip address 12.1.1.3 255.255.255.0 encapsulation frame-relayserial restart-delay frame-relay map ip 12.1.1.2 102 broadcast no frame-relay inverse-arp!router ospf router-id network 3.3.3.0 0.0.0.255 area network 12.1.1.0 0.0.0.255 area R2 show ip ospf nei

4、ghbor，发现没有邻居。要手动配置R2(config)#router ospf 10 R3(config)#router ospf 10 R2 R2#sho ip Neighbor 1SeDead ！DR BDR R2 R2#show ip R2(config)#router ospf 10 R3(config)#router ospf 10 R2 R2#sho ip Neighbor 1SeDead ！DR BDR R2 R2#show ip Serial1/0 is up, line protocol is ernet Address 12.1.1.2/24, Area s ID 10,

5、 Router ID 2.2.2.2, Network Type Cost: Transmit Delay is 1 sec, e BDR, Priority Designated Router (ID) erface address Backup Designated router (ID) erface address Flush timer for old DR LSA due in ervals o 30, Dead 120, Wait 120, Retransmit o 30sdebug 可以看到在这种网络类型中，OSPF 的数据包是单播*Aug 14 *Aug 14 *Aug 14

6、 o to 12.1.1.3 area 0 on Serial1/0 o from 3.3.3.3 area 0 from Serial1/0 End o R2(config)#router ospf R2(config-router)#no neighbor R3(config)#router ospf R3(config-router)#no neighbor R2 R3 R2(config-if)#ip ospf R3(config-if)#ip ospfnetwork broadcast network 一就看到了如下信*Aug 14 14:59:52.823: %OSPF-5-ADJ

7、CHG: from LOADING to FULL, LoadingR2(config)#router ospf R2(config-router)#no neighbor R3(config)#router ospf R3(config-router)#no neighbor R2 R3 R2(config-if)#ip ospf R3(config-if)#ip ospfnetwork broadcast network 一就看到了如下信*Aug 14 14:59:52.823: %OSPF-5-ADJCHG: from LOADING to FULL, Loading s 10, Nbr

8、 2.2.2.2 on ip ospf 1SeDead DR BDR R2#sho ip 。Serial1/0 is up, line protocol is ernet Address 12.1.1.2/24, Area s ID 10, Router ID 2.2.2.2, Network Type Cost: Transmit Delay is 1 sec, e BDR, Priority Designated Router (ID) erface address Backup Designated router (ID) erface address ervals o Dead 40,

9、 Wait 40, Retransmit o 10s*Aug 14 m *Aug 14 *Aug 14 o to 224.0.0.5 area 0 on Serial1/0 o from 3.3.3.3 area 0 from Serial1/0 End o 224.0.0.5 将R2，R3 接口的网络类型改成R2(config-if)#ip ospf net R3(config-if)#ip ospf net *Aug 14 15:06:07.559: %OSPF-5-ADJCHG: from LOADING to FULL, Loading s10, Nbr on R2#sho ip Ne

10、ighbor DR/BDR 将R2，R3 接口的网络类型改成R2(config-if)#ip ospf net R3(config-if)#ip ospf net *Aug 14 15:06:07.559: %OSPF-5-ADJCHG: from LOADING to FULL, Loading s10, Nbr on R2#sho ip Neighbor DR/BDR R2#sh ip 0SeDead Serial1/0 is up, line protocol is ernet Address 12.1.1.2/24, Area s ID 10, Router ID 2.2.2.2, N

11、etwork Type , Cost: Transmit Delay is 1 sec, e o Dead 40, Wait 40, Retransmit ervals o *Aug 14 m 12.1.1.2 *Aug 14 *Aug 14 o to 224.0.0.5 area 0 on Serial1/0 o from 3.3.3.3 area 0 from Serial1/0 End o 224.0.0.5 将接口改为R2(config-if)#ip ospf network R3(config-if)#ip ospf network *Aug 14 15:10:51.739: %OS

12、PF-5-ADJCHG: from LOADING to FULL, Loading s Nbr on R2#sho ip Neighbor 0SeDead -DR BDR R2#sho ip Serial1/0 is up, line protocol ernet R3(config-if)#ip ospf network *Aug 14 15:10:51.739: %OSPF-5-ADJCHG: from LOADING to FULL, Loading s Nbr on R2#sho ip Neighbor 0SeDead -DR BDR R2#sho ip Serial1/0 is u

13、p, line protocol ernet Address 12.1.1.2/24, Area s ID 10, Router ID 2.2.2.2, Network Type , Transmit Delay is 1 sec, e o Dead 120, ,120, Retransmit ervals o *Aug 14 m 12.1.1.2 *Aug 14 *Aug 14 o to 224.0.0.5 area 0 on Serial1/0 o from 3.3.3.3 area 0 from End o 224.0.0.5 R2(config-if)#ip ospf R3(confi

14、g-if)#ip network network R2(config-if)#router ospf R2(config-router)#neighbor 12.1.1.3 R2 *Aug 14 15:18:38.955: %OSPF-5-ADJCHG: from LOADING to FULL, Loading s 10, Nbr 3.3.3.3 on 邻居只要在一边指定即可。R2#sho ip Neighbor 0SeDead DR BDR R2#sho ip Serial1/0 is up, line protocol is up ernet Address 12.1.1.2/24, 邻居只要在一边指定即可。R2#sho ip Neighbor 0SeDead DR BDR R2#sho ip Serial1/0 is up, line protocol is up ernet Address 12.1.1.2/24,