Routercons

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Routercons

  1. 1. Routers and Routing Basics WANs And Routers
  2. 2. Intro To WANs
  3. 3. WAN Services
  4. 4. WAN Services
  5. 5. Routers: Internal Configuration Components
  6. 6. DRAM        Stores routing tables Holds ARP cache Holds fast-switching cache Performs packet buffering (shared RAM) Maintains packet-hold queues Provides temporary memory for the configuration file of the router while the router is powered on Loses content when router is powered down or restarted
  7. 7. NVRAM   Provides storage for the startup configuration file Retains content when router is powered down or restarted
  8. 8. Flash      Holds the operating system image (IOS) Allows software to be updated without removing and replacing chips on the processor Retains content when router is powered down or restarted Can store multiple versions of IOS software Is a type of electronically erasable, programmable ROM (EEPROM)
  9. 9. ROM    Maintains instructions for power-on self test (POST) diagnostics Stores bootstrap program and basic operating system software Requires replacing pluggable chips on the motherboard for software upgrades
  10. 10. Interfaces   Connect router to network for frame entry and exit Can be on the motherboard or on a separate module
  11. 11. Routers: LANs and WANs
  12. 12. Routers: Physical Characteristics
  13. 13. Routers: Management Port Connections
  14. 14. Hyper Terminal Session Properties  Configure terminal emulation software on the PC for:       The appropriate com port 9600 baud 8 data bits No parity 1 stop bit No flow control Lab 10.1: Connecting Console Interfaces
  15. 15. Routers: Connecting LAN Interfaces Lab 10.2: Connecting Router LAN Interfaces
  16. 16. Routers: Connecting WAN Interfaces Lab 10.3: Connecting WAN Interfaces
  17. 17. Next Week’s Agenda  Chapter 11: Router Fundamentals  Please remember to: Reset the equipment Disconnect the cables Clean around your PC Push your chair in See you next week 

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