Abstract: A method for traffic distribution in a network realized using ATM technology, where more than one possible route exists between two nodes for transferring data between the nodes. ATM cells belonging to a certain connection are transmitted from each node to the other, along to at least two different routes, especially in order to increase network information security.

Abstract: The invention relates to A method for rerouting a connection-oriented packet-mode data connection, especially an ATM network data connection. In the method, traffic to be transferred between two nodes of the network is rerouted from a first, inactivated route to another, new route. To minimize loss of data during rerouting, the node initiating the rerouting sends a notification of the rerouting to the node of the opposite end and simultaneously starts to receive traffic from both routes, the opposite end node, having received the notification concerning the rerouting, starts to receive traffic from both routes, both nodes switch transmission to a new route so that the opposite end receives data from only one route at a time, and that rerouting is terminated for both nodes in that they independently cease to listen to a route to be deactivated.