Foundation Summary

The Foundation Summary is a collection of information that provides a convenient review of many key concepts in this chapter. If you are already comfortable with the topics in this chapter, this summary can help you recall a few details. If you just read this chapter, this review should help solidify some key facts. If you are doing your final preparation before the exam, these tables and figures are a convenient way to review the day before the exam.

Table 10-4. STP Configuration Commands

Task	Command Syntax
Enable STP	Switch(config)# spanning-tree vlan-id
Set bridge priority	Switch(config)# spanning-tree vlan vlan-id priority bridge-priority
Set Root Bridge (macro)	Switch(config)# spanning-tree vlan vlan-id root {primary | secondary} [diameter diameter]
Set port cost	Switch(config)# spanning-tree [vlan vlan-id] cost cost
Set port priority	Switch(config)# spanning-tree [vlan vlan-id] port- priority port-priority
Set STP timers	Switch(config)# spanning-tree [vlan vlan-id] hello- time seconds Switch(config)# spanning-tree [vlan vlan-id] forward- time seconds Switch(config)# spanning-tree [vlan vlan-id] max-age seconds
Set PortFast on an interface	Switch(config)# spanning-tree portfast
Set UplinkFast on a switch	Switch(config)# spanning-tree uplinkfast [max- update-rate pkts-per-second]
Set BackboneFast on a switch	Switch(config)# spanning-tree backbonefast