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Refer to the exhibit. The network administrator by mistake configured the root bridge SW1 and a non-root bridge SW2 with different STP Hello timer values. What is the result when applying this script into both Switches?
Switch SW2 will become the Root Bridge because it has lower timer.
The two switches can work normally and send their Hellos at different times.
Spanning Tree Protocol doesn't work, because both switches are un-synchronized.
The non-root switch will adapt its Hello timer to match the Root Bridge.
The Root Bridge mandates the timming of the STP domain. If a non-bridge with a different timer comes into the domain, it will have to learn the STP timer from the Root Bridge advertised in the BPDUs. For more information refer to: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/12-19ea1/configuration/guide/scg/swstp.html
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