Layer 2 Reachability and Layer 3 Routing Information
Question
What software-defined architecture plane assists network devices with making packet-forwarding decisions by providing Layer 2 reachability and Layer 3 routing information?
Answers
Explanations
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The software-defined architecture plane that assists network devices with making packet-forwarding decisions by providing Layer 2 reachability and Layer 3 routing information is the control plane.
The control plane is responsible for managing the communication between network devices and providing network topology information, which includes Layer 2 reachability and Layer 3 routing information. This information is used by network devices to make forwarding decisions and to determine the best path for packets to take through the network.
In contrast to the control plane, the management plane is responsible for configuring and monitoring network devices, while the data plane is responsible for forwarding data packets through the network. The policy plane is not a commonly used term in networking and can refer to different concepts depending on the specific context.
In summary, the control plane provides network devices with the necessary information to make packet-forwarding decisions based on Layer 2 and Layer 3 information.
