Patent ID: 7809854
Filing Date: 2010-10-05
Classification: H04L

Abstract:
1. A method in a client node for sending a message to an application node that corresponds to a logical identifier, the logical identifier being known to the client node, the method comprising: registering with a logical routing layer a node identification function associated with the logical identifier, the node identification function being registered by an application when the application starts executing on the application node, the node identification function having a criteria declaration indicating parameters to be passed to the node identification function and having executable code for generating a physical identifier of the application node that corresponds to the logical identifier; retrieving by the client node the registered node identification function executing by the client node the executable code of the retrieved node identification function to generate the physical identifier for the logical identifier based on parameters passed to the retrieved node identification function according to the criteria declaration; mapping the generated physical identifier to a network address of the application node; sending the message to the network address of the application node; and registering with the logical routing layer a new node identification function associated with the application node during execution of the application.