Maximizing Channels in Global Mesh Deployments

B.

To ensure the highest number of channels available for backhaul, the design must take into consideration the regulatory domain where the mesh deployment will be deployed. Each country has its own regulatory domain, which specifies the available frequency bands, channel widths, and transmit power levels allowed for wireless communication.

Answer A, redundant controllers in the least restrictive regulatory domain, is the best design to meet the requirement. This design will allow the deployment to use the most channels available for backhaul, regardless of the region deployed. By deploying the controllers in the least restrictive regulatory domain, the mesh nodes can take advantage of the maximum number of available channels for backhaul, and this will provide the best performance and reliability for the wireless network.

Answer B, redundant controllers in the most restrictive regulatory domain, will limit the number of available channels for backhaul, and this may lead to performance issues, especially in areas where there is high interference or congestion.

Answer C, one controller per continent, may not be the best design because different countries within a continent may have different regulatory domains, and this will limit the number of available channels for backhaul.

Answer D, one controller per country code, may be a good design if the enterprise has a small footprint and operates in a few countries. However, if the enterprise operates in many countries, this design may not be practical, and it may lead to higher costs and complexity in managing the wireless network.

In summary, the best design to ensure the highest number of channels available to the backhaul, regardless of the region deployed, is to deploy redundant controllers in the least restrictive regulatory domain.