![]() One approach uses a dedicated Wi-Fi network used solely for the nodes to communicate with each other (BT approach). The mesh nodes also need to communicate with each other to pass data and network traffic as shown below: Older devices only support the 2.5GHz band. These are used by clients (laptops,tablets etc) to connect to the network. Wi-fi operates on two frequency bands 2.5GHz and 5 Ghz. There are three possibilities for the internode connection. The video assumes a wi-Fi backhaul network but this is not always the case and not always the best option. This video gives good overview of the problems mesh networks try to solve and how they work. They do this over what is known as a backhaul network.Īll Wi-Fi mesh providers provide wireless backhaul capability but not all provide Ethernet capability. The important thing to understand is that the access nodes need to be able to communicate with each other. The other approach taken by BT, for example, is to keep the existing internet router and replace the Wi-Fi network. The Google approach is to replace the existing WI-FI network and home router with the Google Wi-Fi discs or access nodes. There seems to be two design approaches to these systems. They comprise 2 or more Wi-Fi nodes that work together to offer a single Wi-Fi network (one SSID), and devices can hop seamlessly across the nodes as they move within the network. They aren’t really designed to extend an existing Wi-Fi network, but to replace it. Wi-Fi mesh kits from Google, BT, Amazon etc make creating a large extended network very simple and usually don’t involve using cables. Meshed Networks can be full or partial as shown in the diagram below: This makes the network very resilient to failure but can become impractical due to the number of connections. In a mesh network all or most the network nodes are connected to each other. There are many different network topologies and a mesh topology is very common. The main disadvantage of extending a network using wireless range extenders and access points is that you create several wireless networks (separate SSIDs) which means that when moving between them you need to log off from one and then log on to the other. Traditional WI-Fi networks use a central access point to connect the wireless nodes together and to the Internet.ĭead zones and slow connections can be overcome by extending the network using Wi-Fi extenders, cables or home plug adaptors. Wi-Fi mesh networks are a fast growing area in the home networking arena. Having fast and reliable Wi-Fi coverage in the house and maybe in the garden and out buildings is becoming more and more important. ![]()
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