ospf BMA网络类型
2015-12-05 21:57
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三、BMA网络
1、默认网络类型（BROADCAST） R1(config)#int lo 0R1(config-if)#ip add 1.1.1.1 255.255.255.0R1(config-if)#no shutR1(config-if)#exitR1(config)#int f1/0R1(config-if)#ip add 10.1.1.1 255.255.255.0R1(config-if)#no shutR1(config)#router ospf 1R1(config-router)#router-id 1.1.1.1R1(config-router)#network 1.1.1.1 0.0.0.255 a 0R1(config-router)#network 10.1.1.1 0.0.0.255 a 0 R2(config)#int lo 0R2(config-if)#ip add 2.2.2.2 255.255.255.0R2(config-if)#no shutR2(config-if)#int f1/0R2(config-if)#ip add 10.1.1.2 255.255.255.0R2(config-if)#no shutR2(config-if)#router ospf 1R2(config-router)#router-id 2.2.2.2R2(config-router)#network 2.2.2.2 0.0.0.255 a0R2(config-router)#network 2.2.2.2 0.0.0.255 a 0R2(config-router)#network 10.1.1.2 0.0.0.255 a 0 R3(config)#int lo 0R3(config-if)#ip add 3.3.3.3 R3(config-if)#ip add 3.3.3.3 255.255.255.0R3(config-if)#no shutR3(config-if)#exitR3(config)#int f1/0R3(config-if)#ip add 10.1.1.3 255.255.255.0R3(config-if)#no shutR3(config)#router ospf 1R3(config-router)#router-id 3.3.3.3R3(config-router)#network 3.3.3.3 0.0.0.255 a 0R3(config-router)#network 10.1.1.3 0.0.0.255 a 0 R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface2.2.2.2 1 FULL/BDR 00:00:31 10.1.1.2 FastEthernet1/03.3.3.3 1 FULL/DROTHER 00:00:35 10.1.1.3 FastEthernet1/0R1#show ip ospf inR1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) 1.1.1.1, Interface address 10.1.1.1 Backup Designated router (ID) 2.2.2.2, Interface address 10.1.1.2 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:05 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor 2.2.2.2 (Backup Designated Router) Adjacent with neighbor 3.3.3.3 Suppress hello for 0 neighbor(s) R3#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface1.1.1.1 1 FULL/DR 00:00:38 10.1.1.1 FastEthernet1/02.2.2.2 1 FULL/BDR 00:00:32 10.1.1.2 FastEthernet1/0 总结：BMA网络中的默认类型是broadcast，自动建立邻居关系，选DR、BDR， Hello 10, Dead 40 2、point-to-point类型R1#show ip route 1.0.0.0/8 is variably subnetted, 2 subnets, 2 masksC 1.1.1.0/24 is directly connected, Loopback0L 1.1.1.1/32 is directly connected, Loopback0 3.0.0.0/32 is subnetted, 1 subnetsO 3.3.3.3 [110/2] via 10.1.1.3, 00:00:09, FastEthernet1/0 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masksC 10.1.1.0/24 is directly connected, FastEthernet1/0L 10.1.1.1/32 is dire R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface2.2.2.2 0 EXSTART/ - 00:00:35 10.1.1.2 FastEthernet1/0 R1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type POINT_TO_POINT, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State POINT_TO_POINT Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:05 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with neighbor 3.3.3.3 Suppress hello for 0 neighbor(s)R3#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface1.1.1.1 0 FULL/ - 00:00:38 10.1.1.1 FastEthernet1/0 总结：point-to-point自动建立邻居关系，不选DR、BDR。Hello 10, Dead 40, Wait 40,3、point-to-multipoint类型R1#show ip route 1.0.0.0/8 is variably subnetted, 2 subnets, 2 masksC 1.1.1.0/24 is directly connected, Loopback0L 1.1.1.1/32 is directly connected, Loopback0 2.0.0.0/32 is subnetted, 1 subnetsO 2.2.2.2 [110/2] via 10.1.1.2, 00:00:31, FastEthernet1/0 3.0.0.0/32 is subnetted, 1 subnetsO 3.3.3.3 [110/2] via 10.1.1.3, 00:00:09, FastEthernet1/0 10.0.0.0/8 is variably subnetted, 4 subnets, 2 masksC 10.1.1.0/24 is directly connected, FastEthernet1/0L 10.1.1.1/32 is directly connected, FastEthernet1/0O 10.1.1.2/32 [110/1] via 10.1.1.2, 00:00:31, FastEthernet1/0O 10.1.1.3/32 [110/1] via 10.1.1.3, 00:00:09, FastEthernet1/0R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface3.3.3.3 0 FULL/ - 00:01:37 10.1.1.3 FastEthernet1/02.2.2.2 0 FULL/ - 00:01:42 10.1.1.2 FastEthernet1/0R1#show ip ospf inR1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type POINT_TO_MULTIPOINT, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State POINT_TO_MULTIPOINT Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5 oob-resync timeout 120 Hello due in 00:00:20 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor 3.3.3.3 Adjacent with neighbor 2.2.2.2 Suppress hello for 0 neighbor(s)总结;point-to-multipoint 自动发现邻居，不选DR、BDR，Hello 30, Dead 120 4、point-to-multipoint none-broadcast类型R1#show ip route 1.0.0.0/8 is variably subnetted, 2 subnets, 2 masksC 1.1.1.0/24 is directly connected, Loopback0L 1.1.1.1/32 is directly connected, Loopback0 2.0.0.0/32 is subnetted, 1 subnetsO 2.2.2.2 [110/3] via 10.1.1.3, 00:00:34, FastEthernet1/0 3.0.0.0/32 is subnetted, 1 subnetsO 3.3.3.3 [110/2] via 10.1.1.3, 00:02:39, FastEthernet1/0 10.0.0.0/8 is variably subnetted, 4 subnets, 2 masksC 10.1.1.0/24 is directly connected, FastEthernet1/0L 10.1.1.1/32 is directly connected, FastEthernet1/0O 10.1.1.2/32 [110/2] via 10.1.1.3, 00:00:34, FastEthernet1/0O 10.1.1.3/32 [110/1] via 10.1.1.3, 00:02:39, FastEthernet1/0R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface2.2.2.2 0 FULL/ - 00:00:10 10.1.1.2 FastEthernet1/03.3.3.3 0 FULL/ - 00:01:05 10.1.1.3 FastEthernet1/0R1#show ip ospf inR1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type POINT_TO_MULTIPOINT, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State POINT_TO_MULTIPOINT Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5 oob-resync timeout 120 Hello due in 00:00:02 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 4 msec, maximum is 4 msec Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with neighbor 3.3.3.3总结：point-to-multipoint none-broadcast类型的 Network Type为POINT_TO_MULTIPOINT不选DR、BDR，自动建立邻居关系。Hello 30, Dead 1205、broadcast类型 R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface2.2.2.2 1 FULL/BDR 00:00:31 10.1.1.2 FastEthernet1/03.3.3.3 1 FULL/DR 00:00:38 10.1.1.3 FastEthernet1/0R1#show ip ospf inR1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State DROTHER, Priority 1 Designated Router (ID) 3.3.3.3, Interface address 10.1.1.3 Backup Designated router (ID) 2.2.2.2, Interface address 10.1.1.2 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:01 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor 2.2.2.2 (Backup Designated Router) Adjacent with neighbor 3.3.3.3 (Designated Router) Suppress hello for 0 neighbor(s)总结：broadcast类型需要手动指定邻居，选DR、BDR，Hello 10, Dead 406、None-broadcast类型R1#show ip ospf neighborNeighbor ID Pri State Dead Time Address Interface2.2.2.2 1 FULL/DR 00:01:49 10.1.1.2 FastEthernet1/03.3.3.3 1 FULL/DROTHER 00:01:51 10.1.1.3 FastEthernet1/0R1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type NON_BROADCAST, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State BDR, Priority 1 Designated Router (ID) 2.2.2.2, Interface address 10.1.1.2 Backup Designated router (ID) 1.1.1.1, Interface address 10.1.1.1 Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5 oob-resync timeout 120 Hello due in 00:00:00 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 0, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor 2.2.2.2 (Designated Router) Adjacent with neighbor 3.3.3.3 Suppress hello for 0 neighbor(s)
总结：（BMA以太网）none-broadcast需要手动指邻居，选DR/BDR，Hello 30, Dead 120 BMA网络中的默认类型是broadcast，自动建立邻居关系，选DR、BDR， Hello 10, Dead 40 point-to-point自动建立邻居关系，不选DR、BDR。Hello 10, Dead 40, Wait 40, point-to-multipoint 自动发现邻居，不选DR、BDR，Hello 30, Dead 120 point-to-multipoint none-broadcast类型的 Network Type为POINT_TO_MULTIPOINT不选DR、BDR，自动建立邻居关系。Hello 30, Dead 120 broadcast类型需要手动指定邻居，选DR、BDR，Hello 10, Dead 40 none-broadcast需要手动指邻居，选DR、BDR，Hello 30, Dead 120
1、默认网络类型（BROADCAST） R1(config)#int lo 0R1(config-if)#ip add 1.1.1.1 255.255.255.0R1(config-if)#no shutR1(config-if)#exitR1(config)#int f1/0R1(config-if)#ip add 10.1.1.1 255.255.255.0R1(config-if)#no shutR1(config)#router ospf 1R1(config-router)#router-id 1.1.1.1R1(config-router)#network 1.1.1.1 0.0.0.255 a 0R1(config-router)#network 10.1.1.1 0.0.0.255 a 0 R2(config)#int lo 0R2(config-if)#ip add 2.2.2.2 255.255.255.0R2(config-if)#no shutR2(config-if)#int f1/0R2(config-if)#ip add 10.1.1.2 255.255.255.0R2(config-if)#no shutR2(config-if)#router ospf 1R2(config-router)#router-id 2.2.2.2R2(config-router)#network 2.2.2.2 0.0.0.255 a0R2(config-router)#network 2.2.2.2 0.0.0.255 a 0R2(config-router)#network 10.1.1.2 0.0.0.255 a 0 R3(config)#int lo 0R3(config-if)#ip add 3.3.3.3 R3(config-if)#ip add 3.3.3.3 255.255.255.0R3(config-if)#no shutR3(config-if)#exitR3(config)#int f1/0R3(config-if)#ip add 10.1.1.3 255.255.255.0R3(config-if)#no shutR3(config)#router ospf 1R3(config-router)#router-id 3.3.3.3R3(config-router)#network 3.3.3.3 0.0.0.255 a 0R3(config-router)#network 10.1.1.3 0.0.0.255 a 0 R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface2.2.2.2 1 FULL/BDR 00:00:31 10.1.1.2 FastEthernet1/03.3.3.3 1 FULL/DROTHER 00:00:35 10.1.1.3 FastEthernet1/0R1#show ip ospf inR1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) 1.1.1.1, Interface address 10.1.1.1 Backup Designated router (ID) 2.2.2.2, Interface address 10.1.1.2 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:05 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor 2.2.2.2 (Backup Designated Router) Adjacent with neighbor 3.3.3.3 Suppress hello for 0 neighbor(s) R3#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface1.1.1.1 1 FULL/DR 00:00:38 10.1.1.1 FastEthernet1/02.2.2.2 1 FULL/BDR 00:00:32 10.1.1.2 FastEthernet1/0 总结：BMA网络中的默认类型是broadcast，自动建立邻居关系，选DR、BDR， Hello 10, Dead 40 2、point-to-point类型R1#show ip route 1.0.0.0/8 is variably subnetted, 2 subnets, 2 masksC 1.1.1.0/24 is directly connected, Loopback0L 1.1.1.1/32 is directly connected, Loopback0 3.0.0.0/32 is subnetted, 1 subnetsO 3.3.3.3 [110/2] via 10.1.1.3, 00:00:09, FastEthernet1/0 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masksC 10.1.1.0/24 is directly connected, FastEthernet1/0L 10.1.1.1/32 is dire R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface2.2.2.2 0 EXSTART/ - 00:00:35 10.1.1.2 FastEthernet1/0 R1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type POINT_TO_POINT, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State POINT_TO_POINT Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:05 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with neighbor 3.3.3.3 Suppress hello for 0 neighbor(s)R3#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface1.1.1.1 0 FULL/ - 00:00:38 10.1.1.1 FastEthernet1/0 总结：point-to-point自动建立邻居关系，不选DR、BDR。Hello 10, Dead 40, Wait 40,3、point-to-multipoint类型R1#show ip route 1.0.0.0/8 is variably subnetted, 2 subnets, 2 masksC 1.1.1.0/24 is directly connected, Loopback0L 1.1.1.1/32 is directly connected, Loopback0 2.0.0.0/32 is subnetted, 1 subnetsO 2.2.2.2 [110/2] via 10.1.1.2, 00:00:31, FastEthernet1/0 3.0.0.0/32 is subnetted, 1 subnetsO 3.3.3.3 [110/2] via 10.1.1.3, 00:00:09, FastEthernet1/0 10.0.0.0/8 is variably subnetted, 4 subnets, 2 masksC 10.1.1.0/24 is directly connected, FastEthernet1/0L 10.1.1.1/32 is directly connected, FastEthernet1/0O 10.1.1.2/32 [110/1] via 10.1.1.2, 00:00:31, FastEthernet1/0O 10.1.1.3/32 [110/1] via 10.1.1.3, 00:00:09, FastEthernet1/0R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface3.3.3.3 0 FULL/ - 00:01:37 10.1.1.3 FastEthernet1/02.2.2.2 0 FULL/ - 00:01:42 10.1.1.2 FastEthernet1/0R1#show ip ospf inR1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type POINT_TO_MULTIPOINT, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State POINT_TO_MULTIPOINT Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5 oob-resync timeout 120 Hello due in 00:00:20 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor 3.3.3.3 Adjacent with neighbor 2.2.2.2 Suppress hello for 0 neighbor(s)总结;point-to-multipoint 自动发现邻居，不选DR、BDR，Hello 30, Dead 120 4、point-to-multipoint none-broadcast类型R1#show ip route 1.0.0.0/8 is variably subnetted, 2 subnets, 2 masksC 1.1.1.0/24 is directly connected, Loopback0L 1.1.1.1/32 is directly connected, Loopback0 2.0.0.0/32 is subnetted, 1 subnetsO 2.2.2.2 [110/3] via 10.1.1.3, 00:00:34, FastEthernet1/0 3.0.0.0/32 is subnetted, 1 subnetsO 3.3.3.3 [110/2] via 10.1.1.3, 00:02:39, FastEthernet1/0 10.0.0.0/8 is variably subnetted, 4 subnets, 2 masksC 10.1.1.0/24 is directly connected, FastEthernet1/0L 10.1.1.1/32 is directly connected, FastEthernet1/0O 10.1.1.2/32 [110/2] via 10.1.1.3, 00:00:34, FastEthernet1/0O 10.1.1.3/32 [110/1] via 10.1.1.3, 00:02:39, FastEthernet1/0R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface2.2.2.2 0 FULL/ - 00:00:10 10.1.1.2 FastEthernet1/03.3.3.3 0 FULL/ - 00:01:05 10.1.1.3 FastEthernet1/0R1#show ip ospf inR1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type POINT_TO_MULTIPOINT, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State POINT_TO_MULTIPOINT Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5 oob-resync timeout 120 Hello due in 00:00:02 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 4 msec, maximum is 4 msec Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with neighbor 3.3.3.3总结：point-to-multipoint none-broadcast类型的 Network Type为POINT_TO_MULTIPOINT不选DR、BDR，自动建立邻居关系。Hello 30, Dead 1205、broadcast类型 R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface2.2.2.2 1 FULL/BDR 00:00:31 10.1.1.2 FastEthernet1/03.3.3.3 1 FULL/DR 00:00:38 10.1.1.3 FastEthernet1/0R1#show ip ospf inR1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type BROADCAST, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State DROTHER, Priority 1 Designated Router (ID) 3.3.3.3, Interface address 10.1.1.3 Backup Designated router (ID) 2.2.2.2, Interface address 10.1.1.2 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:01 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor 2.2.2.2 (Backup Designated Router) Adjacent with neighbor 3.3.3.3 (Designated Router) Suppress hello for 0 neighbor(s)总结：broadcast类型需要手动指定邻居，选DR、BDR，Hello 10, Dead 406、None-broadcast类型R1#show ip ospf neighborNeighbor ID Pri State Dead Time Address Interface2.2.2.2 1 FULL/DR 00:01:49 10.1.1.2 FastEthernet1/03.3.3.3 1 FULL/DROTHER 00:01:51 10.1.1.3 FastEthernet1/0R1#show ip ospf interface f1/0FastEthernet1/0 is up, line protocol is up Internet Address 10.1.1.1/24, Area 0, Attached via Network Statement Process ID 1, Router ID 1.1.1.1, Network Type NON_BROADCAST, Cost: 1 Topology-MTID Cost Disabled Shutdown Topology Name 0 1 no no Base Transmit Delay is 1 sec, State BDR, Priority 1 Designated Router (ID) 2.2.2.2, Interface address 10.1.1.2 Backup Designated router (ID) 1.1.1.1, Interface address 10.1.1.1 Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5 oob-resync timeout 120 Hello due in 00:00:00 Supports Link-local Signaling (LLS) Cisco NSF helper support enabled IETF NSF helper support enabled Index 2/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 0, maximum is 1 Last flood scan time is 0 msec, maximum is 4 msec Neighbor Count is 2, Adjacent neighbor count is 2 Adjacent with neighbor 2.2.2.2 (Designated Router) Adjacent with neighbor 3.3.3.3 Suppress hello for 0 neighbor(s)
总结：（BMA以太网）none-broadcast需要手动指邻居，选DR/BDR，Hello 30, Dead 120 BMA网络中的默认类型是broadcast，自动建立邻居关系，选DR、BDR， Hello 10, Dead 40 point-to-point自动建立邻居关系，不选DR、BDR。Hello 10, Dead 40, Wait 40, point-to-multipoint 自动发现邻居，不选DR、BDR，Hello 30, Dead 120 point-to-multipoint none-broadcast类型的 Network Type为POINT_TO_MULTIPOINT不选DR、BDR，自动建立邻居关系。Hello 30, Dead 120 broadcast类型需要手动指定邻居，选DR、BDR，Hello 10, Dead 40 none-broadcast需要手动指邻居，选DR、BDR，Hello 30, Dead 120
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