BPDUs are not directly forwarded by the switch, but the receiving switch uses the information in the frame to calculate a BPDU, and, if the topology changes, initiates a BPDU transmission. The communication between switches via BPDUs results in the following: ■ One switch is elected as the root switch. ■ The shortest distance to the root switch is calculated for each switch. ■ A designated switch is selected. This is the switch closest to the root switch through which packets will be forward

"•'c—•“* 1/ &C1 p 71 User’s Manual of FGSW-2620VM / FGSW-2620PVM Trademarks Copyright © PLANET Technology Corp. 2009. Contents subject to which revision without prior notice. PLANET is a registered trademark of PLANET Technology Corp. All other trademarks belong to their respective owners. Disclaimer PLANET Technology does not warrant that the hardware will work properly in all environments and applications, and makes no warranty and representation, either implied or expressed, with respe