1© 2004, Cisco Systems, Inc. All rights reserved.

CCNA 2 v3.1 Módulo 9 Diagnóstico Básico de Fallas

del Router

222© 2004, Cisco Systems, Inc. All rights reserved.

El comando show ip route

show ip route muestra los contenidos de la tabla de ruteo IP .

333© 2004, Cisco Systems, Inc. All rights reserved.

Enrutamiento Estático

444© 2004, Cisco Systems, Inc. All rights reserved.

Enrutamiento Dinámico

555© 2004, Cisco Systems, Inc. All rights reserved.

Ruta por defecto (Default Route)

666© 2004, Cisco Systems, Inc. All rights reserved.

Configuración ( Default Route)

777© 2004, Cisco Systems, Inc. All rights reserved.

Determinando el origen y destino de las rutas ( Route Source and Destination)

888© 2004, Cisco Systems, Inc. All rights reserved.

Determinando Direcciones L2 y L3

999© 2004, Cisco Systems, Inc. All rights reserved.

Determinando las Distancias Administrativas

101010© 2004, Cisco Systems, Inc. All rights reserved.

Determinando la Métrica de la Ruta

Los protocolos usan la métrica de la ruta lara elegir la mejor hacia un destino

111111© 2004, Cisco Systems, Inc. All rights reserved.

Determinando las actualizaciones del enrutamiento

• Comandos:

show ip route

show ip route network

show ip protocols

show ip rip database

121212© 2004, Cisco Systems, Inc. All rights reserved.

Introducción al Network Testing

131313© 2004, Cisco Systems, Inc. All rights reserved.

• Broken cables • Disconnected cables • Cables connected to the wrong ports • Intermittent cable connection • Wrong cables used for the task at

hand • Transceiver problems • DCE cable problems • DTE cable problems • Devices turned off

Errores Layer 1

141414© 2004, Cisco Systems, Inc. All rights reserved.

• Improperly configured serial interfaces

• Improperly configured Ethernet interfaces

• Improper encapsulation set • Improper clock rate settings

on serial interfaces • Network interface card (NIC)

problems

Errores Layer 2

151515© 2004, Cisco Systems, Inc. All rights reserved.

• Routing protocol not enabled

• Wrong routing protocol enabled

• Incorrect IP addresses

• Incorrect subnet masks

Errores Layer 3

161616© 2004, Cisco Systems, Inc. All rights reserved.

Layer 3 Troubleshooting mediante Ping

171717© 2004, Cisco Systems, Inc. All rights reserved.

Layer 7 Troubleshooting mediante Telnet

181818© 2004, Cisco Systems, Inc. All rights reserved.

Troubleshooting Layer 1 Comando show interfaces

show interfaces serial

191919© 2004, Cisco Systems, Inc. All rights reserved.

Troubleshooting con show cdp neighbors

202020© 2004, Cisco Systems, Inc. All rights reserved.

Troubleshooting conshow cdp neighbors detail

212121© 2004, Cisco Systems, Inc. All rights reserved.

Troubleshooting con traceroute

222222© 2004, Cisco Systems, Inc. All rights reserved.

Laboratorios

• 9.1.1

• 9.1.2

• 9.1.8