Patent ID: 8904035

Claim:
A data unit processing entity in a data unit transmission network, said data unit transmission network associated with a plurality of network nodes, said plurality of network nodes including routing nodes and end nodes, said routing nodes being arranged to route data units over said data unit transmission network in accordance with a routing protocol, one or more of said end nodes being mobile nodes capable of accessing said data unit transmission network over more than one link, said network nodes being arranged to distinguish between a first type routing address and a second type routing address in said data units, said first type routing address serving to identify network nodes and said second type routing address serving to allow routing to mobile nodes, said data unit processing entity comprising: a decision data memory storing decision data for associating one or more second type routing addresses for a particular first type routing address; a decision part for receiving a data unit that is to be forwarded and for setting a second type routing address in said received data unit that is to be forwarded, an operation of said decision part depending on a first type routing address set in said received data unit that is to be forwarded and on said decision data stored in association with said first type routing address in said decision data memory; a network control function entity for updating said decision data memory; a management part further comprising: a first interface to said decision data memory for modifying said decision data, a second interface to one of said mobile nodes for allowing said mobile node to modify said decision data over said first interface, and a third interface to said network_control function entity allowing said network control function entity access to said decision data memory for modifying said decision data and wherein said second interface and said third interface are two independent and separate interfaces to said management part.