OSPF de área única
1.-Armado de la maqueta.
2.- Habilitar OSPF de área 0.
Router(config)#router ospf 1
Router(config-router)#network 200.210.222.128 0.0.0.3 area 0
Router(config-router)#network 200.210.222.132 0.0.0.3 area 0
Router(config-router)#exit
3.- Verificar el anuncio de redes.
Router#show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override
Gateway of last resort is not set
O 200.210.220.0/24 [110/65] via 200.210.222.129, 00:04:09, Serial0/0/1
200.210.221.0/24 is variably subnetted, 2 subnets, 2 masks
C 200.210.221.0/24 is directly connected, GigabitEthernet0/0
L 200.210.221.1/32 is directly connected, GigabitEthernet0/0
200.210.222.0/24 is variably subnetted, 5 subnets, 3 masks
O 200.210.222.0/25 [110/65] via 200.210.222.134, 00:07:12, Serial0/0/0
C 200.210.222.128/30 is directly connected, Serial0/0/1
L 200.210.222.130/32 is directly connected, Serial0/0/1
C 200.210.222.132/30 is directly connected, Serial0/0/0
L 200.210.222.133/32 is directly connected, Serial0/0/0
4.- Verificar el estatus de OSPF.
Router#show ip ospf
Routing Process "ospf 1" with ID 200.210.222.133
Start time: 00:41:12.548, Time elapsed: 00:06:02.192
Supports only single TOS(TOS0) routes
Supports opaque LSA
Supports Link-local Signaling (LLS)
Supports area transit capability
Supports NSSA (compatible with RFC 3101)
Event-log enabled, Maximum number of events: 1000, Mode: cyclic
Router is not originating router-LSAs with maximum metric
Initial SPF schedule delay 5000 msecs
Minimum hold time between two consecutive SPFs 10000 msecs
Maximum wait time between two consecutive SPFs 10000 msecs
Incremental-SPF disabled
Minimum LSA interval 5 secs
Minimum LSA arrival 1000 msecs
LSA group pacing timer 240 secs
Interface flood pacing timer 33 msecs
Retransmission pacing timer 66 msecs
Number of external LSA 0. Checksum Sum 0x000000
Number of opaque AS LSA 0. Checksum Sum 0x000000
Number of DCbitless external and opaque AS LSA 0
Number of DoNotAge external and opaque AS LSA 0
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
--More-- Number of areas transit capable is 0
External flood list length 0
IETF NSF helper support enabled
Cisco NSF helper support enabled
Reference bandwidth unit is 100 mbps
Area BACKBONE(0) (Inactive)
Number of interfaces in this area is 3
Area has no authentication
SPF algorithm last executed 00:02:13.732 ago
SPF algorithm executed 2 times
Area ranges are
Number of LSA 1. Checksum Sum 0x001C9B
Number of opaque link LSA 0. Checksum Sum 0x000000
Number of DCbitless LSA 0
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
Router#show ip ospf interface
GigabitEthernet0/0 is up, line protocol is up
Internet Address 200.210.221.1/24, Area 0, Attached via Network Statement
Process ID 1, Router ID 200.210.222.133, 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) 200.210.222.133, Interface address 200.210.221.1
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:06
Supports Link-local Signaling (LLS)
Cisco NSF helper support enabled
IETF NSF helper support enabled
Index 3/3, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 0
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
Serial0/0/0 is up, line protocol is up
Internet Address 200.210.222.133/30, Area 0, Attached via Network Statement
Process ID 1, Router ID 200.210.222.133, Network Type POINT_TO_POINT, Cost: 64
--More-- Topology-MTID Cost Disabled Shutdown Topology Name
0 64 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 00:00:08
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 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 200.210.222.1
Suppress hello for 0 neighbor(s)
Serial0/0/1 is up, line protocol is up
Internet Address 200.210.222.130/30, Area 0, Attached via Network Statement
Process ID 1, Router ID 200.210.222.133, Network Type POINT_TO_POINT, Cost: 64
Topology-MTID Cost Disabled Shutdown Topology Name
0 64 no no Base
Transmit Delay is 1 sec, State POINT_TO_POINT
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
--More-- oob-resync timeout 40
Hello due in 00:00:06
Supports Link-local Signaling (LLS)
Cisco NSF helper support enabled
IETF NSF helper support enabled
Index 1/1, 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 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 200.210.222.129
Suppress hello for 0 neighbor(s)
5.- Las direcciones de los neighbors.
Router#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
200.210.222.1 0 FULL/ - 00:00:32 200.210.222.134 Serial0/0/0
200.210.222.129 0 FULL/ - 00:00:36 200.210.222.129 Serial0/0/1
6.- Identifique el Designated Network.
Designated Router (ID) 200.210.222.133, Interface address 200.210.221.1
7.- Anote la distancia administrativa de OSPF.
Distancia administrativa: 110
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