| 摘要 |
PROBLEM TO BE SOLVED: To provide devices and program media allowing nodes that are interested in knowing a network topology to discover other nodes in the network topology.SOLUTION: A discovery protocol includes two message types, topology discovery messages and topology query messages. A hybrid device issues topology discovery messages 302 upon powering up, at periodic intervals, or upon detecting a change in network topology. The topology discovery messages are broadcast to all nodes on a network and identify the issuing node to the network. A topology query message 308 is sent to a particular node and requests a response from the receiving node regarding the neighboring nodes of the receiving node.SELECTED DRAWING: Figure 3 |
