Basic Network Training

1. Basic Network Training Thanaphum Bannasri Salatas Padfusup

2. Agenda • DAY3 • Communication Cable Technologies • Understanding Wan Technology • Basic network command • Basic network troubleshooting Basic Network Training

3. Communication Cable Technologies Basic Network Training

4. Cable Technology • Data communication is accomplished with electromagnetic energy • A combination of electrical and magnetic fields vibrating in relation to each other • Includes power, voice, radio waves, infrared light, visible light, ultraviolet light, and X, gamma, and cosmic rays. Basic Network Training

5. Cable Technology • Each of the frequencies constitutes a portion of the electromagnetic spectrum. Basic Network Training

6. Cable technology 6 6 Unshielded Twisted-Pair Cable Basic Network Training

7. Cable technology 7 UTP 8-position Connector Basic Network Training

8. Cable technology 8 Twisted-Pair Cable • The Electronic Industries Association (EIA) developed standards to grade UTP • Category 1 basic twisted-pair cabling used in telephone system. Fine for voice but inadequate for all but low-speed data communication. • Category 2 suitable for voice and for data transmission of up to 4 Mbps. • Category 3 Required to have at least three twists per foot data transmission of up to 10 Mbps standard cable for most telephone systems Basic Network Training

9. Cable technology 9 Twisted-Pair Cable • Category 4 at least three twists per fool as well as other conditions, upto 16 Mbps. • Category 5 data transmission up to 100 Mbps. • Category 5e Gigabit speed data. • Category 6 Gigabit speed data • Category 6A 10G (Augmented Cat 6) • Category 7* 10G • *Category 7 are proposed standards Basic Network Training

10. Cable technology 10 Shielded twisted-pair (STP) • Cable has a metal foil or braided-mesh covering that encases each pair of insulated conductors. • The metal casing prevents the penetration of electromagnetic noise by absorbing the noise into the shield. • It also can eliminate “crosstalk”. Basic Network Training

11. Cable technology 11 Shielded twisted-pair (STP) • STP has the same quality considerations. And uses the same connectors as UTP. But the shield must be connected to a ground Basic Network Training

12. Plastic cover Metal shield Copper Insulation Shielded twisted-pair cable Cable technology 12 Shielded twisted-pair (STP) Basic Network Training

13. Cable technology 13 Shielded Twisted-Pair Screened Twisted-Pair Fully Shielded (Cat 7) Basic Network Training

14. Cable technology 14 STP Connectors Basic Network Training

15. Understand WAN Connection Basic Network Training

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22. WAN Data-Link Protocols • HDLC • PPP • Frame Relay (LAPF) • ATM • Ethernet • MPLS Basic Network Training

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30. LAB CONFIGURATION CHAP Basic Network Training

31. Basic network commandBase on CISCO product Basic Network Training

32. Ping Command • This command usually used to check active connection between computer or server.  • Ping sends out a packet to a designated network computer and measures its response time. The target or other computer will respond and return a signal to determine the quality of connection to other site or another computer. Essential Switch Command Training

33. Traceroute (tracert) command • Tracert (traceroute) is another command adopted from Unix system. Actually when you try to open facebook.com or google.com in your browser, you ask your computer to go to that address through hopping into a few router address.  Basic Network Training

34. Nslookup command • Helps to diagnose the Domain Name System (DNS) infrastructure and comes with a number of sub-commands. • Resolve name to IP Address, IP Address to name, and other records on domain name. Basic Network Training

35. ipconfig command • ipconfig used to display the TCP/IP network configuration values. • To view switches for ipconfig use ipconfig /? command for help • /all : show all information for all TCP/IP network • /release : release specified adapter if you got IP address from DHCP server. • /renew : renew and ask for new IP address from DHCP server. • /flushdns : clear all DNS local cache • /displaydns : displaying what do you have in your local DNS cache. Basic Network Training

36. ipconfig command Basic Network Training

37. Basic network troubleshootingBase on CISCO product Basic Network Training

38. Determining Route Source and Destination Basic Network Training

39. Determining L2 and L3 Address Basic Network Training

40. Introduction to Network Testing Basic Network Training

41. Testing by OSI Layer 1 • Broken cables • Disconnected cables • Cables connected to the wrong ports • Intermittent cable connection • Wrong cables used for the task at hand (must use rollovers, crossover cables, and straight-through cables correctly) • Devices turned off Basic Network Training

42. Testing by OSI Layer 2 • Improperly configured serial interfaces • Improperly configured Ethernet interfaces • Improper encapsulation set (HDLC is default for serial interfaces) • Improper clockrate settings on serial interfaces • Network interface card (NIC) problems Basic Network Training

43. Testing by OSI Layer 3 • Routing protocol not enabled • Wrong routing protocol enabled • Incorrect IP addresses • Incorrect subnet masks Basic Network Training

44. Layer 3 Troubleshooting Using Ping Basic Network Training

45. Testing Application Layer Using Telnet Basic Network Training

46. Troubleshooting Using Traceroute Basic Network Training

47. Q & A Basic Network Training