In the Figure, you can analyze STP for
the switch block using the following values:
- The path cost from the workstation
attached to S3 to the root switch is 110 (100 + 10).
- The MAC address of the root switch
is 00-00-08, whereas the designated-switch MAC address is
00-00-F9 (the lowest MAC address wins when defaults are used).
- If an access switch has a lower
MAC address, that switch becomes the root.
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