D-Link xStack DGS-3610 Series Configuration Manual page 180

Chapter 17 MSTP Configuration DGS-3610 Series Configuration Guide
Figure 17-5
If the failure of the active path between Switch A and Switch B occurs, the backup link will
take action immediately to generate corresponding Figure 17-6.
Figure 17-6
If the failure of the path between Switch B and Switch C occurs, the Switch C will switch the
Alternate port to the Root port to generate the Figure 17-7.
17-6