CCNA EXP MOD_IV_CHAPTER_2_EB

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CCNA EXP MOD_IV_CHAPTER_2_EB

  1. 1. Protocolo Punto a Punto (PPP) Accediendo la WAN – Capítulo 2ITE I Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 1
  2. 2. Objetivos Describir los conceptos fundamentales de la comunicación serial punto a punto. Describir los conceptos claves acerca del PPP. Configurar la encapsulación PPP. Explicar y configurar la autenticación PAP y CHAP.ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 2
  3. 3. 2.1 Enlaces seriales punto a punto Accediendo la WAN – Capítulo 2ITE I Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 3
  4. 4. ¿Cómo funciona la comunicación serial? Comunicación Serial y ParalelaITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  5. 5. ¿Cómo funciona la comunicación serial? Sesgo de reloj de la Comunicación ParalelaITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 5
  6. 6. Proceso de la comunicación serialITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 6
  7. 7. Conector de 9 pins (RS 232)ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 7
  8. 8. Multiplexación por división de tiempo (TDM)ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 8
  9. 9. Ejemplos de TDMITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 9
  10. 10. Punto de DemarcaciónITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 10
  11. 11. Conexiones Seriales DCE / DTEITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 11
  12. 12. Protocolos de encapsulación WANITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 12
  13. 13. Formato de la trama estándar y cHDLCITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 13
  14. 14. Tipos de tramas HDLCITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 14
  15. 15. Configuración del Encapsulamiento HDLC El HDLC de Cisco es un protocolo de punto a punto que puede utilizarse en líneas alquiladas entre dos dispositivos Cisco.ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 15
  16. 16. Diagnóstico de fallas de una interface serial Se pueden identificar cinco estados problemáticos de la línea de estado de la interfaz en la salida de show interfaces serial: – Serial x is down, line protocol is down – Serial x is up, line protocol is down – Serial x is up, line protocol is up (looped) – Serial x is up, line protocol is down (disabled) – Serial x is administratively down, line protocol is downITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 16
  17. 17. 2.2 Conceptos del Protocolo Punto a Punto (PPP) Accediendo la WAN – Capítulo 2ITE I Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 17
  18. 18. Point to Point Protocol (PPP)ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 18
  19. 19. Arquitecturas de capa PPP – Capa físicaITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 19
  20. 20. Arquitecturas de capa PPP – Capa LCPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 20
  21. 21. Arquitecturas de capa PPP – Capa NCPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 21
  22. 22. Campos de una trama PPPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 22
  23. 23. Establecimiento de una sesión PPPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 23
  24. 24. Establecimiento del enlaceITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 24
  25. 25. Negociación del enlaceITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 25
  26. 26. Códigos de LCPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 26
  27. 27. Opciones LCPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 27
  28. 28. Opción de configuración PPPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 28
  29. 29. Campos de Opciones LCPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 29
  30. 30. Proceso NCPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 30
  31. 31. 2.3 Configuración de PPP Accediendo la WAN – Capítulo 2ITE I Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 31
  32. 32. Comandos de configuración de opciones PPPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 32
  33. 33. Verificación de PPPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 33
  34. 34. Comandos de configuración PPPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 34
  35. 35. Depuración de PPPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 35
  36. 36. Protocolos de autenticación PPPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 36
  37. 37. Autenticación PAPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 37
  38. 38. Autenticación CHAPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 38
  39. 39. Ejemplo de autenticación CHAPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 39
  40. 40. El comando “ppp authentication”ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 40
  41. 41. Configuración de autenticación PAPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 41
  42. 42. Configuración de autenticación CHAPITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 42
  43. 43. Resumen Las comunicaciones seriales y paralelas TDM / STDM / Punto de Demarcación / DTE – DCE Protocolos de encapsulación WAN La trama HDLC y Chdlc / Tipos de tramas HDLC (información, supervisión y no numerada) Diagnósticos de fallas en los enlaces seriales: –Serial x is down, line protocol is down –Serial x is up, line protocol is down –Serial x is up, line protocol is up (looped) –Serial x is up, line protocol is down (disabled) –Serial x is administratively down, line protocol is downITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 43
  44. 44. Resumen Arquitectura PPP – LCP – NCP La trama PPP Fases de la conexión PPP – Establecimiento / Negociación del enlace – Autenticación / Opciones – Proceso NCP Configuración: – Autenticación – Opciones – Verificación – Depuración – Resolución de problemasITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 44
  45. 45. ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 45

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