There is disclosed a packet data switch which allows fair queuing, by assigning a priority value to received data, without requiring time-consuming searches, by storing pointers to the buffer memory in a first memory, and accessing the pointers through a second memory which is in the form of an array,...http://www.google.fr/patents/US6490640?utm_source=gb-gplus-shareBrevet US6490640 - Packet data switching apparatus
