Bridge Priority and MAC address is used to break a tie.
Based on the location of the root bridge, theother switches determine which of their ports has the lowest path cost to the root bridge. These ports are called root ports, and each switch (other than the current root bridge) must have one.
In STP, first a central switch (or bridge, as it it called in STP) is selected - the "root bridge". All other switches calculate the shortest path to this root bridge.
In a Spanning Tree Protocol (STP) environment, the root bridge is determined by the Bridge ID, which consists of the Bridge Priority and the MAC address. By default, all switches have a Bridge Priority of 32768, so the switch with the lowest MAC address will become the root bridge. Therefore, if all switches have default STP configurations, the switch with the lowest MAC address will be elected as the root bridge.
root primary
a. All switch and bridge ports are in the forwarding state. b. All lkswitch and bridge ports are in the stand by state. c. All switch and bridge parts are assigned as either root or designed. d. All switch and bridge ports are in either the forwarding or blocking state. e. All switch and bridge are either blocking or looping.
In a spanning tree topology, the switch with the lowest Bridge ID becomes the central point of reference, or the root bridge. The Bridge ID is determined by a combination of the switch's priority value and its MAC address. If multiple switches have the same priority, the switch with the lowest MAC address is chosen as the root bridge. This selection process helps ensure a loop-free network topology.
4. Set the switch priority to a smaller value than that of the other switches in the network.
The default bridge priority on Cisco switches is 32768. This value is used in the Spanning Tree Protocol (STP) to determine the root bridge in a network. Lower bridge priority values are preferred, so if multiple switches have the same priority, the switch with the lowest MAC address becomes the root bridge.
Set the bridge priority to 16384
Root Covered Bridge was created in 1878.
Bill Root - bridge - was born in 1923.
Bill Root - bridge - died in 2002.