Patent ID: 6178172
Filing Date: 2001-01-23
Classification: H04L

Abstract:
In an asynchronous transfer mode (ATM) network running the private network-to-network (PNNI) protocol, a method of synchronizing database information between a first node in an overload state connected by a first link to a neighboring second node not in an overload state, said method comprising the steps of:prioritizing a topology database memory within said first node in response to said first node discovering it is in an overload state;initiating the hello protocol and associated finite state machine between said first node and said second node over said first link;choosing a neighboring third node connected to said first node that is not in an overload state, said third node connected to said first node via a second link;dropping said second link connecting said first node with said third node;re-establishing said second link so as to cause said first node and said third node to execute the hello protocol and associated finite state machine; andexchanging database topology information between said second node and said third node by way of said first node which performs a forwarding function for said second node and said third node.