A method of controlling asymmetrical port access in a common-memory (CM) multi-port data packet switch and a high-capacity flexible access rate CM data packet switch are described. The method involves providing a common-memory-access control table which defines a unique contiguous band of CM access time...http://www.google.de/patents/US6118792?utm_source=gb-gplus-sharePatent US6118792 - Method and apparatus for a flexible access rate common-memory packet switch
