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Training Camp • Cybersecurity Glossary
TCN (Topology Change Notification) is a message in Spanning Tree Protocol used to inform network devices about changes in the network topology, prompting them to update their forwarding tables accordingly.
TCN Topology Change Notification Definition: TCN (Topology Change Notification) is a message in Spanning Tree Protocol used to inform network devices about changes in the network topology, prompting them to update their forwarding tables accordingly.
TCN (Topology Change Notification) is a message sent in a network when there is a change in the network structure that affects the spanning tree topology. It is used in Ethernet networks to inform switches that the topology has changed, prompting them to update their forwarding tables to prevent network loops and maintain optimal traffic flow.
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