Whether you require a very high availability of the network or just continued availability with lower levels of resiliency, this guide discusses the options for the recommended designs proposed here, with a focus on the most critical environments because they are the most difficult to. Whether you require a very high availability of the network or just continued availability with lower levels of resiliency, this guide discusses the options for the recommended designs proposed here, with a focus on the most critical environments because they are the most difficult to. The Catalyst 9000 switching family offers versatile design for more-flexible operations. Help ensure a more secure experience and bring exceptional speed and scale with our new Catalyst 9000X models. Deploy a powerful platform to get the bandwidth, speed, scale, and automation required to support. Requirement 2: A Wi-Fi network needs to be enabled for guests to access the Internet. This Wi-Fi network uses Portal authentication. Data Aggregation: Wireless switches aggregate data from multiple. The access layer consists of layer 3 switches, which take routed and switched data packets from the distribution switches and then route them to the access devices in subnets. The access devices in subnets can be modems, video display units, receiver audio phones, IP-based devices, etc. Perform. At the installation location on the wall, use the mounting bracket to mark four holes for the wall plugs and screws (included in the screw kit).