3.2.5 Convergencia
Objetivos de aprendizaje:
- Ver la tabla de enrutamiento de una red convergente.
- Agregar una nueva LAN a la topología.
- Ver el resultado de la depuración.
- Ver el proceso de la convergencia de la red.
Situación
En esta
actividad de laboratorio, la red ya ha sido configurada con 2 routers, 2
switches y 2 hosts. Se agregará una nueva LAN y usted verá la convergencia de
la red.
Tarea 1: Visualizar las tablas de enrutamiento en esta topología de la red
Paso 1: Examine la tabla de enrutamiento del Router2.
Router2#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
C 10.0.0.0/8 is directly connected, FastEthernet0/0
R 11.0.0.0/8 [120/1] via 192.168.1.2, 00:00:16, Serial0/0/0
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router2#
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
C 10.0.0.0/8 is directly connected, FastEthernet0/0
R 11.0.0.0/8 [120/1] via 192.168.1.2, 00:00:16, Serial0/0/0
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router2#
Paso 2: Examine la tabla de enrutamiento del Router3.
Router3#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
R 10.0.0.0/8 [120/1] via 192.168.1.1, 00:00:16, Serial0/0/0
C 11.0.0.0/8 is directly connected, FastEthernet0/0
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router3#
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
R 10.0.0.0/8 [120/1] via 192.168.1.1, 00:00:16, Serial0/0/0
C 11.0.0.0/8 is directly connected, FastEthernet0/0
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router3#
Paso 3: Documente las redes detectadas a partir de RIP.
¿Qué red se detectó a través de actualizaciones de RIP para el Router2?
_____________________________________________________________________________
¿Qué red se detectó a través de actualizaciones de RIP para el Router3?
_____________________________________________________________________________
Tarea 2: Agregar una nueva LAN a la topología de la red
Paso 1: Agregue un nuevo host y switch 2960 al Router3.
Paso 2: Conecte la interfaz Fa0/1 del switch a la interfaz Fa0/1 del Router3.
Paso 3: Conecte el host a la interfaz fa0/2 del switch.
Tarea 3: Configurar las direcciones IP adecuadas desde el esquema de direccionamiento 12.0.0.0/8 para esta LAN
Paso 1: Utilice la primera dirección IP utilizable en esta red para la interfaz Fa0/1 en el Router3.
Router3(config)#int fa0/1
Router3(config-if)#ip address 12.0.0.1 255.0.0.0
No habilite la interfaz
Router3(config-if)#ip address 12.0.0.1 255.0.0.0
No habilite la interfaz
Paso 2: Configure el host con la última dirección host utilizable.
Dirección
IP 12.255.255.254
Máscara de subred 255.0.0.0
Gateway predeterminado 12.0.0.1
Máscara de subred 255.0.0.0
Gateway predeterminado 12.0.0.1
Paso 3: Examine la tabla de enrutamiento para el Router3 para ver si esta red se ha agregado como red conectada directamente.
Router3#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
R 10.0.0.0/8 [120/1] via 192.168.1.1, 00:00:16, Serial0/0/0
C 11.0.0.0/8 is directly connected, FastEthernet0/0
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router3#
¿Por qué no se ha agregado esta red?
_________________________________________
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
R 10.0.0.0/8 [120/1] via 192.168.1.1, 00:00:16, Serial0/0/0
C 11.0.0.0/8 is directly connected, FastEthernet0/0
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router3#
¿Por qué no se ha agregado esta red?
_________________________________________
Paso 4: Haga ping desde el host LAN 3 al host LAN 1.
¿Fue
exitoso el ping? __________
Tarea 4: Habilitar la interfaz Fa0/1 en el Router3
Paso 1: Configure el comando no shutdown en la interfaz Fa0/1.
Router3(config-if)#no
shutdown
%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
Paso 2: Examine la tabla de enrutamiento del Router3 para ver si aparece la red que se agregó recientemente.
Router3#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
R 10.0.0.0/8 [120/1] via 192.168.1.1, 00:00:19, Serial0/0/0
C 11.0.0.0/8 is directly connected, FastEthernet0/0
C 12.0.0.0/8 is directly connected, FastEthernet0/1
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router3#
¿Se ha agregado la red 12.0.0.0 a la tabla de enrutamiento del Router3?_______________
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
R 10.0.0.0/8 [120/1] via 192.168.1.1, 00:00:19, Serial0/0/0
C 11.0.0.0/8 is directly connected, FastEthernet0/0
C 12.0.0.0/8 is directly connected, FastEthernet0/1
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router3#
¿Se ha agregado la red 12.0.0.0 a la tabla de enrutamiento del Router3?_______________
Tarea 5: Identificar la convergencia de la red
Paso 1: Examine la tabla de enrutamiento del Router2.
Router2#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
C 10.0.0.0/8 is directly connected, FastEthernet0/0
R 11.0.0.0/8 [120/1] via 192.168.1.2, 00:00:01, Serial0/0/0
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router2#
¿La red agregada recientemente se ha incorporado a la tabla de enrutamiento del Router2? ___________
¿Por qué?
_______________________________________
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
C 10.0.0.0/8 is directly connected, FastEthernet0/0
R 11.0.0.0/8 [120/1] via 192.168.1.2, 00:00:01, Serial0/0/0
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router2#
¿La red agregada recientemente se ha incorporado a la tabla de enrutamiento del Router2? ___________
¿Por qué?
_______________________________________
Tarea 6: Activar la depuración en ambos routers
Abra la
sesión CLI en ambos routers para observar el resultado en las pantallas.
Paso 1: Active la depuración en el Router2.
Router2#debug ip rip
RIP protocol debugging is on
Router2#
RIP protocol debugging is on
Router2#
Paso 2: Active la depuración en el Router3.
Router3#debug ip rip
RIP protocol debugging is on
Router3#
RIP protocol debugging is on
Router3#
Paso 3: Observe el resultado de la depuración en ambos routers.
Router3
Router3#RIP: sending v1 update to 255.255.255.255 via FastEthernet0/0 (11.0.0.1)
RIP: build update entries
network 10.0.0.0 metric 2
network 192.168.1.0 metric 1
RIP: sending v1 update to 255.255.255.255 via Serial0/0/0 (192.168.1.2)
RIP: build update entries
network 11.0.0.0 metric 1
Router2
Router2#RIP: received v1 update from 192.168.1.2 on Serial0/0/0
11.0.0.0 in 1 hops
¿El Router3 ha incluido la nueva red 12.0.0.0 en las actualizaciones del Router2? __________
¿Por qué?
_________________________
Router3#RIP: sending v1 update to 255.255.255.255 via FastEthernet0/0 (11.0.0.1)
RIP: build update entries
network 10.0.0.0 metric 2
network 192.168.1.0 metric 1
RIP: sending v1 update to 255.255.255.255 via Serial0/0/0 (192.168.1.2)
RIP: build update entries
network 11.0.0.0 metric 1
Router2
Router2#RIP: received v1 update from 192.168.1.2 on Serial0/0/0
11.0.0.0 in 1 hops
¿El Router3 ha incluido la nueva red 12.0.0.0 en las actualizaciones del Router2? __________
¿Por qué?
_________________________
Tarea 7: Publicar la red recientemente agregada
Paso 1: Publique la red 12.0.0.0 con rip de router en el Router3.
Router3(config)#router rip
Router3(config-router)#network 12.0.0.0
Router3(config-router)#network 12.0.0.0
Paso 2: Observe el resultado de la depuración en ambos rotures.
Router3
RIP: sending v1 request to 255.255.255.255 via
FastEthernet0/1 (12.0.0.1)
RIP: sending v1 update to 255.255.255.255 via FastEthernet0/0 (11.0.0.1)
RIP: build update entries
RIP: sending v1 update to 255.255.255.255 via FastEthernet0/0 (11.0.0.1)
RIP: build update entries
network 10.0.0.0 metric 2
network 12.0.0.0 metric 1
network 192.168.1.0 metric 1
network 12.0.0.0 metric 1
network 192.168.1.0 metric 1
RIP: sending v1 update to 255.255.255.255 via
Serial0/0/0 (192.168.1.2)
RIP: build update entries
network 11.0.0.0 metric 1
network 12.0.0.0 metric 1
network 12.0.0.0 metric 1
RIP: sending v1 update to 255.255.255.255 via
FastEthernet0/1 (12.0.0.1)
RIP: build update entries
network 10.0.0.0 metric 2
network 11.0.0.0 metric 1
network 192.168.1.0 metric 1
network 11.0.0.0 metric 1
network 192.168.1.0 metric 1
Router3(config-router)#
Router2
Router2
RIP: received v1 update from 192.168.1.2 on
Serial0/0/0
11.0.0.0 in 1 hops
12.0.0.0 in 1 hops
12.0.0.0 in 1 hops
RIP: received v1 update from 192.168.1.2 on
Serial0/0/0
11.0.0.0 in 1 hops
12.0.0.0 in 1 hops
12.0.0.0 in 1 hops
RIP: sending v1 update to 255.255.255.255 via
FastEthernet0/0 (10.0.0.1)
RIP: build update entries
network 11.0.0.0 metric 2
network 12.0.0.0 metric 2
network 192.168.1.0 metric 1
network 12.0.0.0 metric 2
network 192.168.1.0 metric 1
RIP: sending v1 update to 255.255.255.255 via
Serial0/0/0 (192.168.1.1)
RIP: build update entries
RIP: build update entries
network
10.0.0.0 metric 1
¿Se ha
agregado una nueva red a las actualizaciones enviadas al Router2? __________
Paso 3: Haga ping desde el host LAN 3 al host LAN 1.
¿Fue
exitoso el ping? __________
Tarea 8: Desactivar la depuración en ambos routers
Paso 1: Desactive la depuración en el Router2.
Router2#no debug ip rip
RIP protocol debugging is off
Router2#
RIP protocol debugging is off
Router2#
Paso 2: Desactive la depuración en el Router3.
Router3#no debug ip rip
RIP protocol debugging is off
Router3#
RIP protocol debugging is off
Router3#
Tarea 9: Identificar la convergencia de la red
Paso 1: Examine la tabla de enrutamiento del Router2.
Router2#show ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
C 10.0.0.0/8 is directly connected, FastEthernet0/0
R 11.0.0.0/8 [120/1] via 192.168.1.2, 00:00:01, Serial0/0/0
R 12.0.0.0/8 [120/1] via 192.168.1.2, 00:00:01, Serial0/0/0
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router2#
¿La nueva red se ha agregado a la tabla de enrutamiento del Router2? ___________
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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
Gateway of last resort is not set
C 10.0.0.0/8 is directly connected, FastEthernet0/0
R 11.0.0.0/8 [120/1] via 192.168.1.2, 00:00:01, Serial0/0/0
R 12.0.0.0/8 [120/1] via 192.168.1.2, 00:00:01, Serial0/0/0
C 192.168.1.0/24 is directly connected, Serial0/0/0
Router2#
¿La nueva red se ha agregado a la tabla de enrutamiento del Router2? ___________
Tarea 10: Reflexionar
¿Qué medidas se debieron tomar para realizar la convergencia de la red que se agregó recientemente?
_________________________________________________
Al terminar esta actividad, el porcentaje de finalización debe ser 100%. Si el porcentaje de finalización no es 100%, utilice el botón Check Results y resuelva los problemas según sea necesario.
