What value determines the root bridge when all switches connected by trunk links have default STP configurations?

Last Updated: Jan 30, 2023
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What value determines the root bridge when all switches connected by trunk links have default STP configurations?

  • VLAN ID
  • MAC address
  • extended system ID
  • bridge priority

Explanation: When all switches are configured with the same default bridge priority, the MAC address becomes the deciding factor for the election of the root bridge. All links on the same VLAN will also have the same extended system ID so this will not contribute to determine which switch is the root for that VLAN.

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