| 摘要 |
<p>Disclosed in the embodiments of the invention are a data communication network (DCN) configuration method, gateway element and data communication system. The gateway element sends the non-gateway element in a management domain a broadcast message carrying the IP address of a network management server; the gateway element obtains the element identifier register information, which is transmitted by the non-gateway element after the non-gateway element receives the broadcast message; the gateway element allocates for the non-gateway element a public network IP address and a private network IP address which is used for device management, generates and stores a network address translation (NAT) mapping table; the gateway element registers the NAT mapping table on the network management server; the gateway element enables the message exchange between the non-gateway element and network management server according to the NAT mapping table. When the message interaction is performed between the network management server and the non-gateway element, the gateway element only needs to perform NAT on the message, which therefore lightens the burden of the Central Processing Unit (CPU) of the gateway element, effectively increases the number of the elements in the management domain and improves the efficiency of forwarding the message in the management domain.</p> |
