Internal & External of Routers

368 views
267 views

Published on

This study guide is intended to provide those pursuing the CCNA certification with a framework of what concepts need to be studied. This is not a comprehensive document containing all the secrets of the CCNA, nor is it a “braindump” of questions and answers.

I sincerely hope that this document provides some assistance and clarity in your studies.

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
368
On SlideShare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
26
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • <number>
    This slide depicts the broad range of Cisco access router product portfolio.
    With this announcement, Cisco is enhancing its access router portfolio to offer enterprise customers with a broadest range of routers to meet the needs of enterprise teleworkers, small offices, branch offices, regional offices, all the way to enterprise HQ.
    This provides customers with the benefit of standardizing on a single operating environment which they are familiar with across all varying office sizes to simplify deployment, maintenance, and lowering support costs and training.
    In the small office space, with the Cisco SOHO & 800 Series, Cisco has introduced new models such as the SOHO 71 which brings affordable multi-user access and Internet security for Small Businesses as well as new DSL models with an integrated 4 port hub.
  • Internal & External of Routers

    1. 1. 1
    2. 2. What is a Router ? • Router is a device which makes communication possible between two or more different networks present in different geographical locations. • To make communication possible between two or more different networks present in the same geographical location, what are the steps to be taken: Answer : Configuring a Software Router or Implementing the CIDR concept 2
    3. 3. Is communication possible ? 10.0.0.1/8 S0 HYD E0 192.168.1.150/24 LAN - 192.168.1.0/24 S1 10.0.0.2/8 CHE E0 192.168.1.150/24 LAN - 192.168.1.0/24 3
    4. 4. Is communication possible ? The same networks present in different geographical locations cant communicate through a router because if Network ID of both the networks is same then the request will not go out of the router and it’ll keep on searching within the LAN. 4
    5. 5. Which Routers to buy ? Many companies are manufacturing Router : • Cisco • Nortel • Multicom • Cyclades • Juniper • Dlink • Linksys • 3Com But Cisco is having monopoly in the market of Routers 5
    6. 6. Cisco’s Hierarchical Design Model Cisco divided the Router into 3 Layers • Access Layer Router • Distribution Layer Router • Core Layer Router 6
    7. 7. Access Layer Router • Routers which are used by the Small Organization and are also known as Desktop or Company Layer Routers. Router Series : 800, 1000, 1600, 1700, 2500 Cisco 800 Cisco 1700 Cisco 1760 7
    8. 8. Distribution Layer Router • Routers which are used by the ISPs and are also known as ISP Layer Routers Router Series : 2600, 3200, 3600, 3700 Cisco 3600 Cisco 3700 Cisco 2600XM/2691 8
    9. 9. Core Layer Router • Routers which are used by the Global ISPs and are also known as Backbone Routers Router Series : 6400, 7200, 7300, 7400, 7500, 7600, 10000, 12000 Cisco 7000 9
    10. 10. Router Classification FIXED ROUTER • Fixed Router are just MODULAR ROUTER • Modular Router are just like a branded PC like a Assembled PC where modification of where modification of interfaces is not interfaces is possible possible • Access Layer Routers • Distribution and Core are example of Fixed Layer Routers example Router except 1600 of Modular Router and 1700 series 10
    11. 11. Example Modular Router 11
    12. 12. Model 2501 AUI Attachment Unit Interface E0 Serial Ports S0 and S1 Console Con 0 Power Switch Auxiliary Aux 0 Power Supply 12
    13. 13. Attachment Unit Interface • AUI pin configuration is 15 pin female. • It is known as Ethernet Port or LAN port or Default Gateway. • It is used for connecting LAN to the Router. • Transceiver is used for converting 8 wires to 15 wires. i.e. RJ45 to 15 pin converter. 13
    14. 14. Transceiver 14
    15. 15. Attachment Unit Interface An IP address needs to be assigned to this An IP address needs to be assigned to this interface and it should be in the same network as interface and it should be in the same network as of the LAN. of the LAN. E0 192.168.1.150/24 Straight Cable Straight Cable 1.1 1.2 1.3 LAN - 192.168.1.0/24 15
    16. 16. Attachment Unit Interface Cross Cable E0 192.168.1.150/24 If you connect Router AUI to If you connect Router AUI to directly to PC NIC Card then You directly to PC NIC Card then You have to use Cross Cable have to use Cross Cable 1.1 LAN - 192.168.1.0/24 16
    17. 17. Crimping of Twisted pair Cable • Straight cable It is used between unlike device (dissimilar devices) e.g. Hub to PC, Switch to PC, Hub to Router 12345678 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 17 12345678
    18. 18. Crimping of Twisted pair Cable • Cross cable It is used between like device (Similar devices) e.g. Hub to HUB, PC to PC, Switch to Switch, HUB to Switch, PC to Router 12345678 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 18 12345678
    19. 19. Crimping of Twisted pair Cable • Rollover Cable It is used for connecting Router Console Port to PC Com Ports or Serial ports. 12345678 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 19 12345678
    20. 20. Serial Port • Serial pin configuration is 60 pin configuration female (i.e. 15 pins and 4 rows) and Smart Serial pin configuration is 26 pin configuration female. • It is known as WAN Port • It is used for connecting to Remote Locations • V.35 cable is having 60 pin configuration male at one end and on the other end 18 pin configuration male. 20
    21. 21. V.35 Cable 21
    22. 22. V.35 Modem E0 V.35 192.168.1.150 Cable E0 192.168.2.150 V.35 Cable 2 pair of Copper Wire LAN - 192.168.1.0/24 LAN - 192.168.2.0/24 HYDERABAD OFFICE G.703 Modem HYDERABAD MUX CHENNAI OFFICE EXCHANGE G.703 Modem 22 Fiber Optic Cable CHENNAI MUX
    23. 23. Console Port • It is known as Local Administrative Port • It is generally used for Initial Configuration, Password Recovery and Local Administration of the Router. It is RJ45 Port • IMP : It is the most delicate port on the Router. So make less use of the Console Port. 23
    24. 24. Console Connectivity 24
    25. 25. Console Connectivity • Connect a rollover cable to the router console port (RJ-45 connector). • Connect the other end of the rollover cable to the RJ-45 to DB-9 converter • Attach the female DB-9 converter to a PC Serial Port. • Open Emulation Software 25
    26. 26. DB9 Converter 26
    27. 27. Auxiliary Port • It is known as Remote Administrative Port. • Used for remote administration • Its an RJ-45 port • A console or a rollover cable is to be used. 27
    28. 28. Auxiliary Connectivity 28
    29. 29. Other Ports • BRI Port Basic Rate Interface used to connect ISDN to the Router. It is a RJ45 Port. It is available on 2503 and 2520 model router. • 10 Base T Port It is a RJ45 Port and used for connecting LAN to the Router. Its function is same as the AUI Port but there is no need for a Transceiver. It is available on 2520 model router. 29
    30. 30. 2601 Model Router 30
    31. 31. Brief Overview • WAN interfaces – Serial interface (S0, S1 etc) – 60 pin/26 pin(smart serial) – ISDN interface(BRI0 etc) – RJ45 • LAN interfaces - Ethernet – AUI (Attachment Unit Interface) (E0)– 15 pin – 10baseT – RJ45 • Administration interfaces – Console – RJ45 - Local – Auxiliary – RJ45 - Remote 31
    32. 32. Internal Components • ROM A bootstrap program is located here. It is same as the BIOS of the PC. Bootstrap program current version is 11.0 • Flash Internetwork Operating System (IOS) developed by Cisco is stored here. IOS is Command line interface. 32
    33. 33. Internal Components • NVRAM Non volatile RAM, similar to Hard Disk It is also known as Permanent Storage or Startup Configuration. Generally size of NVRAM is 32 KB. • RAM It is also known as Temporary Storage or running Configuration. Minimum size of RAM is 2MB. The size of RAM is greater than NVRAM in the Router. • Processor Motorola Processor 70 Mhz, RISC based processor (Reduced Instruction Set Computer) 33
    34. 34. Internal Components 34
    35. 35. Boot sequence POST ROM Power on Self Test Power on Self Test (verifies) the hardware (verifies) the hardware Contact the ROM FLASH Contact the ROM Loads the Bootstrap Program Loads the Bootstrap Program & Search where IOS is located & Search where IOS is located NVRAM IOS found in Flash IOS found in Flash Loading IOS Loading IOS RAM Flash contacts the NVRAM Flash contacts the NVRAM For Configuration File For Configuration File NVRAM configuration copied NVRAM configuration copied into RAM into RAM 35

    ×