5.4 Network (NWK) Link Status Frame

The routers and coordinator send the Network (NWK) link status frames, so that neighboring nodes can maintain information on the link costs required for routing. The Link Status frames are periodically transmitted as one-hop broadcasts. The Link Status list contains the short address and link cost information of all neighboring nodes. The following figure illustrates the header information in a NWK link status frame.
Figure 5-10. NWK Link Status Command Frame