PC Support & Repair

1. PC Support & Repair Chapter 15 Advanced Networks

2. Objectives • After completing this chapter, you will meet these objectives: • Identify potential safety hazards and implement proper safety procedures related to networks. • Design a network based on the customer's needs. • Determine the components for your customer's network. • Implement the customer's network. • Upgrade the customer's network. • Describe installation, configuration, and management of a simple mail server. • Describe preventive maintenance procedures for networks. • Troubleshoot the network.

3. Safety Hazards & Procedures • Installing cabling can be dangerous! • Proper clothing & shoes • Ladder safety • Tool safety • Cable safety

4. Fiber Optic Cable Safety • Require training to cut/splice/repair fiber cables • Chemical safety • Solvents & glues used are dangerous • Tool safety • Sharp, compression, cuts glass & plastic • Watch for flying shards • Hard to see; can cut you • Light safety • Can’t see light, can damage eyes • Careful with magnifier (for inspecting)

5. Copper Cable Safety • Copper strands are sharp • Can cut you • Can fly into air & eye • Tools are sharp

6. Review

7. Design a network based on needs • Determine a topology. • Determine protocols and network applications.

8. Determine the Topology • Site Survey • Estimate # of users & future growth • Location of computers • Location of network equipment & servers • Cable/wireless • Get blueprint or draw it yourself • Note space, power, security, air conditioning • Can you name the topologies?

9. Determine Protocols • TCP/IP required for Internet • NetBEUI • No connection to Internet • Fast, but only good for small networks • IPX/SPX • Used for old Novell networks (use TCP/IP now) • AppleTalk • Old, uses TCP/IP now

10. TCP/IP Protocols

11. More TCP/IP Protocols

12. Review

13. Review

14. Determine Components for Network • Select cable types. • Select an ISP connection type. • Select network cards. • Select the network device.

15. Select Cable Types • UTP • Cat5 & Cat5e • 5e can handle higher speeds • Up to 330ft • Cat6 & Cat6A • Splits pairs in upper/lower • 6A-For faster speeds; up to 10Gbps • 10GBase-T • Cables connect to central MDF • Use Plenum rated for in walls & dropped ceilings • Retards fires

16. More Cable Types • Wireless • Use where cables can’t be installed • Older, historic buildings • Cost • Wiring is a one-time, expensive cost • Little maintenance after installed • Security • Wired is more secure than wireless

17. Select an ISP Connection • Consider: • Speed • Reliability • Availability

18. ISP Connections

19. Scenarios • Choose which type of ISP service you’d use.

20. Selecting a Network Card • Desktop- integrated or expansion slot • Laptop- integrated or PC Card • USB adapters • Ethernet Card or Gigabit Ethernet Card • Should match speed of switch port • Which for a Linksys E3000?

21. Wireless Network Cards • 802.11a • B • G • N

22. Select Your Network Device • Hub • Slow • Basic sharing of data • Data goes to all • Switch • Faster than hub • Smart • Data goes to the one • Router • One port connects to Internet • Called a gateway device • Also can be multi-function

23. Try This…

24. Review

25. Review

26. Implement the Network • Install and test the customer's network. • Configure the customer's Internet and network resources.

27. Perform the Install • Plan first! • Install cables in wall • One feeds another pulls • Terminate cables & test • Check net cards & configure for TCP/IP • Install switches/routers in secure location • Put patch cable from jack to PC • Test • Ipconfig /all & ping

28. Configure the Internet Connection • Temporary Internet files • Help pages display faster • Delete every so often • Default Browser • File Sharing • Right-click on folder, Sharing • Read, Change, Full Control • Print Sharing • Right-click, Sharing

29. Lab • 3 computers connected by a hub, sharing a printer and a folder. • 192.168.1.1, 1.2, 1.3 • Printer connected locally to 1.2 computer • Folder “GCIT” in Documents on computer 1.1

30. Review

31. Upgrade the Network • Install and configure a wireless NIC. • Install and configure a wireless router. • Test a connection.

32. Install a Wireless NIC • Wireless PCI or USB • Check version • Install drivers • Set IP • Static or DHCP • Packet Tracer Lab 15.5.1

33. Install & Configure Wireless Router • Find a good location • Central to all is best • Connect to modem & a computer • Log in through browser • What’s the IP usually? • Select mode (mixed, B, G, N) • Static/DHCP • SSID & broadcast • Security • Firmware Update

34. Test the Wireless Connection • Connection status (Enabled/Disabled) • Double-click for status • In Vista, Network and Sharing Center > Manage Network Connections. Double-click the Wireless Network Connection to display the status.

35. Testing the Connection • Ipconfig • /all, /release, /renew • Ping • Tests connectivity • Ping 192.168.1.7 –n 789 • Ping 192.168.1.7 –t • Nslookup • Tests DNS • Nslookupwww.cisco.com • Nslookup 64.190.7.89 Packet Tracer Lab 15.5.3

36. Review

37. Common Problems

38. Review

39. PC Support & Repair Chapter 15 Advanced Networks