Patent ID: 6246669
Filing Date: 2001-06-12
Classification: H04L

Abstract:
In a high speed digital network including a plurality of access nodes and a plurality of network nodes each access node and network node including a topology data base, a method for optimizing the operations required for connecting a calling end-user attached to the network through a local access node to a destination end-user attached to the network through a remote access node, via a connection set-up operation including first determining if the remote access node is identified in the local access node, otherwise, sending a locate request message through the network and waiting for a locate reply to identify the remote access node, and then selecting a path and setting the connection accordingly, said method including:defining in each access node an Access Node Connection Table (ANCT) for storing therein a list including every remote access node for which there is at least one user connection with said each local access node, and identifying said connection;defining in the locate reply message format a field for the destination remote Access Node Topology Database (ANTDB) and inserting said remote ANTDB information therein, prior to sending said reply message;monitoring said locate reply message reception within the local access node, and upon reception of said locate reply message, creating an entry for storing in said local access node the received remote ANTDB, unless the remote access node was already identified in the local access node;conventionally selecting said optimal path and setting the connection accordingly; andupdating the ANCT table to include predefined information relative to the set-up path.