I have tried to run the simulation on OPNET to study how tree topology in ZigBee form the network
The parameter and node positions are shown in the below link
https://goo.gl/photos/5Tj16MVtkabLAB1z5
The logical connection is shown below link
https://goo.gl/photos/rJnoBoZPXpKLH8s29
The question is, from what I have understood, the tree depth separate and perform by the distant. In this case node 10 is closer to node 3 than node 1, why did node 10 select node 1 as parent instead of node 3? Could you guys please help me sharing how ZigBee children node select their parent ?