What happens when the topology of a network running RSTP changes?

What happens when the topology of a network running RSTP changes?

• A. Packets are flooded on the entire network
• B. The aging time of MAC address entries is changed
• C. Some MAC address entries are deleted
• D. The entire MAC address table is deleted

Answer: (C)

When the topology of a network running the Rapid Spanning Tree Protocol (RSTP) changes, certain actions are taken in response to the new network structure. One of the key aspects of RSTP is its ability to rapidly adapt to changes, such as link failures or the addition of new devices. In this context, when a topology change occurs, RSTP triggers a mechanism that can lead to some MAC address entries being deleted. This is because the network's topology change typically implies that certain paths to devices have become invalid or ineffective. As a result, the switch must update its MAC address table, which contains the mapping of MAC addresses to the associated ports. By deleting outdated MAC address entries, the switch ensures that it is working with an accurate representation of the network, which helps improve the efficiency of data forwarding and prevents potential loops or broadcast storms that could arise from stale entries. This selective deletion of MAC addresses allows RSTP to maintain stable and efficient network operations in a dynamic environment. The other options do not accurately capture what happens during a topology change in RSTP. Flooding packets across the entire network is not a direct response to topology changes and would create unnecessary traffic. Changing aging times of MAC address entries or deleting the entire

When the topology of a network running the Rapid Spanning Tree Protocol (RSTP) changes, certain actions are taken in response to the new network structure. One of the key aspects of RSTP is its ability to rapidly adapt to changes, such as link failures or the addition of new devices.

In this context, when a topology change occurs, RSTP triggers a mechanism that can lead to some MAC address entries being deleted. This is because the network's topology change typically implies that certain paths to devices have become invalid or ineffective. As a result, the switch must update its MAC address table, which contains the mapping of MAC addresses to the associated ports.

By deleting outdated MAC address entries, the switch ensures that it is working with an accurate representation of the network, which helps improve the efficiency of data forwarding and prevents potential loops or broadcast storms that could arise from stale entries. This selective deletion of MAC addresses allows RSTP to maintain stable and efficient network operations in a dynamic environment.

The other options do not accurately capture what happens during a topology change in RSTP. Flooding packets across the entire network is not a direct response to topology changes and would create unnecessary traffic. Changing aging times of MAC address entries or deleting the entire