| 摘要 |
<p>A route inquiry method in ASON for implementing the route inquiry by the network element NE1 which has a protocol controller (PC) and a connection controller (CC) but without a route controller (RC) or routing database (RDB) having no enough information includes: NE1 sends a protocol message of Route Request to the remote NE2, then the NE2 obtains the route result according to the Route Request, and returns the result to NE1 which launches the Route Request by protocol message of Route Response; the PC of NE1 sends the route result to the CC of local network element after receiving the Route Response protocol message. The method of the present invention enables the route inquiry to be done even if the present network element hasn't a RC by interacting with the remote network elements by protocol, meanwhile, it is compatible with the prior route inquiry technique, easy and reliable. The invention can be implemented in the field of data and ASON.</p> |
