Chapter 3
Advanced STP Tuning
This chapter covers the following subjects:
STP Topology Tuning: This section explains some of the options for modifying the root bridge location or moving blocking ports to designated ports.
Additional STP Protection Mechanisms: This section examines protection mechanisms such as root guard, BPDU guard, and STP loop guard.
This chapter reviews techniques for configuring a switch to be guaranteed as the root bridge or as a backup root bridge for a Layer 2 topology. In addition, this chapter explains features that prevent other switches from unintentionally taking over the root bridge role. The chapter also explains other common features that are used in Cisco’s enterprise campus validated design guides.
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