from the previous system and method nodes whose upstream bandwidth test too low to act as a repeater of even a single stream when the node joins the network are given this designation type 0 low priority nodes are the sixth and lowest preference level of node recognized by the system these nodes are incapable of bumping nodes of any type a type 0 node may be assigned u201c low priority u201d status for a number of reasons such as an inability to reliably receive data from its parent node the fundamental rule concerning node type is that a node of a particular preference level may not bump a node at an equal or greater preference level but may always bump a node at a lesser preference level the one exception to this rule is that type 2 normal nodes may cause other type 2 normal nodes to be bumped when executing priority and system joins as explained below thus except as stipulated in the previous paragraph type 2 normal nodes may bump all nodes except other type 2 normal nodes a type 1 high priority may not bump type 2 normal or other type 1 high priority nodes but may bump type 1 normal priority type 0 high priority type 0 normal priority and type 0 low priority likewise type 1 normal priority nodes cannot bump type 2 normal type 1 high or other type.