Multi-protocol packet switching network

Details Multi-protocol packet switching network Multi-protocol packet switching network

H - Electricity

04

L

H04L 12/56 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2112885

In a packet switched network, each network node has line and trunk ports to which LAN user terminals and links are connected and which are identified by a port address containing a node number plus a port number. The user terminals transmit a signaling packet when establishing a connection before sending information-bearing packets, containing in it a source network address (a protocol identifier plus a source user address) and a destination network address (the same protocol identifier and a destination user address). Each network node includes a memory for establishing correspondences between the network addresses of remote user terminals, the port addresses of the remote user terminals, and the port numbers of the ports of the network node through which local user terminals are accessible to the remote user terminals. The network node responds to the signaling packet from a user by detecting in the memory a corresponding port address and a corresponding port number and appending the detected port address to the packet and transmitting it to one of the ports of the node according to the detected port number.

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