====== Creating a high speed mesh by using dual radio nodes ====== * During an early demonstration of MESHdesk the first question that was asked: **Does it supports dual radio nodes?**. * The answer at that time was //not yet, perhaps in the future//.... * Fast forward to today and we are proud to say that MESHdesk does indeed also support dual radio nodes. ------------------------ ===== The limitations of single radio nodes ===== * Unfortunately with a mesh there is a performance knock with each hop away from the gateway node. * This performance knock is unavoidable even with dual radio nodes. * With single radio nodes there are however also the following to consider. * When you use single radio mesh nodes each node has two functions: * It has an ad-hoc connection with neighbor nodes. (This can be seen as the connecting wire between the nodes) * It typically also has one or more SSIDs to which clients can connect. * This means that each radio has to **time share** between these two functions. * Add to the mix that the mesh and SSID's are all on the same channel and it does not take a genius to see why people will ask //Does this system supports dual radio nodes// ------ ===== Dual radio node alternative ===== * When we have dual radio nodes we can create a mesh in the following way. * Use the 5G radio for the ad-hoc connection with the neighbor nodes. * Use the 2.4G radio for the SSIDs to which clients will connect. * Make sure each node's 2.4G radio is on a non-overlapping channel (1,6,11) to reduce interference. * Test shown that this configuration results in an increase of the throughput of nearly 3 times when compared to a mesh that consist of single radio nodes. * See the following diagram for an overview. {{ :user_guide:md:highspeedmesh.png |}}