200 301 cisco

200 301 cisco.After studying this chapter, attempt to explain the key terms, but it is not necessary to get them all right in the process. Chapter 22 will guide you on how to use these terms for your final exam preparation.Blocking State, BPDU Protection, Bridge ID, Bridge Protocol Data Unit (BPDU), Designated Port, Ethernet Channel, Forwarding Delay, Forwarding State, Hello BPDU,IEEE 802. ID, Listening State, Learning State, MaxAge, Fast Port, Root Port, Root Switch, Root Overhead, Spanning Tree Protocol (STP).This chapter covers the following exam points.LAN switching technology configuration and verification PVSTP operation explanation root bridge selection spanning tree mode troubleshooting troubleshooting and solving problems with spanning tree operation root switch pilot mode correct port status troubleshooting Ethernet channel problemsConfiguring Spanning Tree Protocol (STP)By default, the CiscoLAN switch enables Spanning Tree Protocol (STP) for all interfaces on each VLAN O Despite this, some network administrators using medium to large Ethernet LANs often still need to make some STP settings in order to influence the choices made by STP. For example, after performing a similar configuration, when all switches and links are working, the administrator is able to know which is the root switch and which ports are blocking. In addition, when a link or switch fails, these configurations enable the administrator to make predictions about the STP topology in those cases.This chapter assumes that the switch is using the 802.1DSTP protocol and uses this as the basis for discussing about STP configuration options. The first part of the discussion is how to change different settings for each VLAN using the show command, which displays the current STP status (per configuration command). The second main topic is how to troubleshoot STP, where the STP rules discussed in Chapter 1 are tested in depth, and more topics related to the different switch show commands are discussed.2.1 "Do I already know this?" Mini-testThe quizzes in this section allow the reader to determine whether it is necessary to skim the chapter or a major section, or even to read the "Test Prep" at the end of the chapter. The answers are listed at the bottom of the page following the quiz. For a full explanation, see Appendix c on the accompanying CD.Table 2-1 Basic Content of the Chapter and Related Test Questions