Monitoring network addresses and managing data transfer of an electronic data processing system. A first data packet including a first source network address and a first target network address is received via a first system link of a first converged interface. The first source network address is a unique network address assigned to a subsystem of the electronic data processing system. The first converged interface checks whether the first source network address is registered in a first source table assigned to the first converged interface. If the first source network address is not registered in the first source table, a registration of the first source network address is added to the first source table and it is announced to the remaining converged interfaces of the electronic data processing system that the first source network address is registered for the first computer system.