Nokia Corporation

Aruba Networks, Inc.

Csi Zeitnet (a Cabletron Systems Company)

De B Vu

Suhas Anand Shetty

Flavio Giovanni Bonomi

William Stanley Evans

A pipelined out-of-order process and system for handling data packets in a network device. The process and system are scalable to support throughput in excess of 10 Gbps. The system includes a set of processing cores that offload the table look up operations and similar operations from the central processing unit. The central processing unit receives the requisite data needed for performing forwarding, routing, NAT, firewall maintenance and similar operation on data packets from the set of processing cores.

Hardware based parallel processing cores with multiple threads and multiple pipeline stages

A method and a search engine are described. A unique key is received. A hash is searched for a match to the unique key. Concurrently with searching the hash, a cache is searched for the match to the unique key. And information regarding the unique key is obtained.

Near-perfect, fixed-time searching algorithm using hashing, LRU and cam-based caching

A switch guaranteeing a minimum amount of memory space for desired connection while allowing efficient dynamic change of maximum memory space that can be used by a connection. Only an amount of memory space which is required for guaranteeing the minimum amount of memory space is reserved. When the reserved space is decremented due to new cells being received on connections, the maximum memory space reserved for each connection is dynamically increased. For multicast connections, only a single copy of the cell data is stored even though a multicast cell is transmitted on several ports. Multicast cells can also be processed using the same signals used for processing unicast cells.

Efficient method and apparatus for allocating memory space used for buffering cells received on several connections in an asynchronous transfer mode (ATM) switch

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Fremont, CA, United States of America

De B Vu