Network formation is carried
out by JenNet itself, forming a tree topology. Provided
that a node N joins the network, the neighbor
table and routing table on its parent node
change accordingly. Changes of the tables will, in
turn, be propagated hop by hop toward the coordinator,
causing nodes on the path to update
routing tables correspondingly. On detecting the
new node (upon receipt of a CHILD_JOIN(N)
message), the coordinator looks up N’s MAC
address in its binding table locally. If N cannot be
found, a new icon for N pops out on the soft console.
If N is found, however, N is seen as rejoining
the network due to recovery from intermittent
link outage.