Operating Cisco LAN Switches LAN chuyển đổi doanh thu của Cisco đã vượt qua doanh thu bộ định tuyến về thời gian mà các chứng chỉ CCNA được công bố lần đầu tiên vào năm 1998, vì vậy có rất ít nghi ngờ về tầm quan trọng của thiết bị chuyển mạch LAN với Cisco. Ngoài ra, phần lớn các thiết bị người dùng cuối kết nối với mạng bằng cách kết nối đến một switch LAN. Vì vậy, nó không có gì ngạc nhiên khi các kỳ thi CCNA cấp giấy chứng nhận bao gồm chuyển đổi các. | C H A P T E R Operating Cisco LAN Switches Cisco s LAN switch revenue surpassed router revenues about the time that the CCNA certification was first announced back in 1998 so there is little doubt about the importance of LAN switches to Cisco. Also the vast majority of end-user devices connect to a network by connecting to a LAN switch. So it s no surprise that the CCNA certification exams cover switching concepts extensively. Cisco uses two major alternatives for LAN switch operating systems. Also each model series of switches from Cisco has several differences in the commands used as compared with other Cisco switches that even use the same operating system. Conversely Cisco routers all use a single operating system called Cisco IOS Software and the commands work the same on every router. So Cisco can easily cover router configuration on the CCNA exams without having to force everyone studying for the CCNA certification to use a particular model of router. However covering such a wide variety of switch product lines each with its own quirks for configuration makes testing about LAN switch configuration difficult. This chapter covers the basics of configuring 2950 series LAN switches. The 2950 uses a CLI IOS-like with several commands in common with router IOS. However many commands differ and a few of the processes of how to do things on the 2950 differ from a router. So this chapter points out the similarities with routers but only briefly because Chapter 7 Operating Cisco Routers already covered those details. Where 2950s act differently this chapter goes into more depth. NOTE For those of you still working on the outdated 1900 series switches the ICND Exam Certification Guide Appendix E contains coverage of the 1900 series switch CLI and commands. Do I Know This Already Quiz The purpose of the Do I Know This Already quiz is to help you decide whether you really need to read the entire chapter. If you already intend to read the entire chapter you do not .
