One embodiment of the invention provides apparatus and a method for handling an incoming packet at a port in a network. The port belongs to one or more partitions, and at least one service level is associated with each of the partitions. When a packet is received at the port, a partition key and a service...http://www.google.de/patents/US7362764?utm_source=gb-gplus-sharePatent US7362764 - Method and apparatus for verifying service level in a communications network