1 / 45

WASHINGTON SCHOOL PROJECT

SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE. WASHINGTON SCHOOL PROJECT . WAN DESIGN PROPOSAL. This is a sample project completed by previous students. You may look at this, but in NO way copy or use any part in any way. WAN Requirements. Washington School District

garvey
Download Presentation

WASHINGTON SCHOOL PROJECT

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. SAMPLE SAMPLE SAMPLE SAMPLE SAMPLE WASHINGTON SCHOOLPROJECT WAN DESIGN PROPOSAL This is a sample project completed by previous students. You may look at this, but in NO way copy or use any part in any way.

  2. WAN Requirements • Washington School District • Connect all school and administrative offices with the district office • Reliable • Scalable • Optimize bandwidth • Minimize cost

  3. TWO – LAYER HIERARCHICAL MODEL • Hierarchical • Method for controlling data traffic patterns • Two – layer design • Three regional hubs • Fast WAN core

  4. TWO-LAYER HIERARCHICAL

  5. DATA TRAFFIC FLOW • Controlling traffic flow with layer 3 • Router path determination • Layer 3 addressing • Flows up hierarchy only as far as it needs • Conserves bandwidth

  6. WAN TRAFFIC FLOW

  7. WAN CORE • Fast WAN Core • Each Regional hub connected via 4 T1 lines • School locations connected to closest Regional Hub with T1 line • Access to Internet • Thru District Office • Double Firewall • Frame Relay WAN link • No other connections

  8. WAN CORE

  9. WAN Equipment • Hub routers • Cisco 7576 • Multiprotocol • Router A – slots 0 thru 5 • Router B – slots 8 thru 12 • Dual power possible • Console port • Auxiliary port for DSU/CSU • 500,000- to 1,000,000 packets per second

  10. Hub Routers – front view

  11. Hub Routers – rear view

  12. Quantity Part Number Product Description Price Total 3 CISCO7513/4 Cisco 7513 13-Slot, Dual Bus, 1RSP4, 1 PS 28581 8574300 VIP2 Port and Service Adapters 18 PA-4T+ 4 Port Serial Port Adapter, Enhanced 4781 8605800  Total: 17180100 Hub Routers

  13. School Location Routers • Cisco 2651 • 37,000 packets per second • Expandable for scalability • Port options • Serial – asynch or synch • ISDN PRI or BRI • T1/E1 connections • ethernet • Multiprotocol • modular

  14. Quantity Product Description Price Total 33 Cisco 2651 Router 334500 11038500  Total: 11038500 School Location Routers

  15. CSU/DSU • Channel Service Unit/Data Service Unit • Like high powered modem • Both ends of T – 1 connection • 24 for 4 T-1 lines from each hub router • 64 for T-1 lines to each school • 1 for Frame relay connection

  16. CSU/DSU

  17. WAN CORE

  18. Quantity Product Description Price Total 91 Adtran, inc DSU TSP 1345 122395  Total: 122395 CSU/DSU COST

  19. Quantity Product Description Price Total 36 US ROBOTICS 56K/14.4K V.92 W/RAPIDCOMM FAX/DATA SW 7500 270000  Total: 270000 Modems • For dial backup

  20. Quantity Product Description Price Total 1 CISCOADVANTAGE FIREWALL PIX 525 UNRESTRICTED BUNDLEPIX-525-UR-BUN 15957 1595700 Cisco Secure PIX Firewall 525 • Tracks source and destination addresses • TCP sequence numbers, port numbers, and additional TCP flags

  21. Total WAN Equipment Price • $ 302,066.95

  22. PPP • WAN data link –layer protocol • Encapsulate datagrams • Link Control Protocol • Establishing, configuring, testing data-link connection • Network Control Protocols • Establishing and configuring network – layer protocols

  23. PPP Session Establishment • Link establishment • Link quality determination(optional) • Authentication – CHAP • Repeated after link established • Network – layer protocol configuration negotiation • Link termination

  24. Sample CHAP Configuration District_Office> District_Office > enable District_Office# config t District_Office(config)# username Shaw_Butte password “password” District_Office(config)# interface s0/0 District_Office(config-if)# encap PPP District_Office(config-if)# PPP authentication CHAP District_Office(config-if)# exit District_Office(config)# exit District_Office# exit District_Office>

  25. PPP

  26. IGRP Routing Protocol • Distance-Vector Interior Routing Protocol • Each router sends all or a portion of its routing table in a routing update message at regular intervals to each of its neighboring routers. • IGRP uses a combination Network delay, bandwidth, reliability, and load for its metrics. • Allows for various metric settings in networks with widely varying performance characteristics.

  27. IGRP Setup As an example: The IGRP Setup for the District office is: District_Office(config)# router igrp 109District_Office(config-router)# network 10.0.0.0

  28. Routing Updates • Network Updates will be sent according to the • default setting of 90 seconds • Will flow from the school sites to the closest regional hub and then flow from the WAN core regional hub to the District Office

  29. COMMUNITY ELEMENTARY SCHOOL • Remote location • Infrequent need for connectivity • ISDN BRI connection to WAN core • Usable bandwidth 128 kbps • DDR establishes and releases circuit • Connected via Shaw Butte Hub • Reduced cost

  30. COMMUNITY SCHOOL

  31. Frame Relay

  32. Frame Relay • Internet connection • Virtual circuit over point to point connection • CIR 1.54 mbps • HDLC encapsulation • Cost benefits over T1 • Speed - no error checking • DLCI # for virtual circuit from Provider • LMI type for Cisco IOS 11.1 and earlier from Provider

  33. IP Addressing - WAN Core IP Address: 10.0.0.0 Subnet Mask: 255.255.255.0 Masked Bits: 24 Host Bits: 8 Number of Subnets: 65536 Hosts per Subnet: 254

  34. IP Addressing - LAN IP Address: 172.16.0.0 Subnet Mask: 255.255.254.0 Masked Bits: 23 Host Bits: 9 Number of Subnets: 128 Hosts per Subnet: 510

  35. IP Addressing Scheme

  36. Private Addressing • Unregistered address ranges • Unusable on public domain • CLASS A: 10.0.0.0 thru 10.255.255.255 • CLASS B: 172.16.0.0 thru 172.31.255.255 • CLASS C: 192.168.0.0 thru 192.168.255.255

  37. NAT • On Firewall NAT enabled and configured one valid registered IP address • Translation Table • Maps addresses to port numbers • PAT - Port Address Translation or overloading • Static versus Dynamic

  38. NAT and PAT

  39. NAT

  40. NAT and PAT • Benefits • Administration • Server • Increasing ranges • Security • No external initiated traffic • Web services • No knowledge of Company • Cost • Cox

  41. NAT

  42. Server Placement • DNS hierarchical • Master Server on backbone • Regional hubs • School locations • EMAIL on Master Server and School Locations • WEB Server on backbone

  43. Server Placement

  44. Connectivity Backup • Out-of Band Network Management • Auxiliary port with attached Modem • Asynchronous dial in • Set aux password • line aux 0 • Password cisco • Modem autohangup

  45. Connectivity Backup

More Related