US Patent No: 7,420,969

Number of patents in Portfolio can not be more than 2000

Network switch with a parallel shared memory

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ALSO PUBLISHED AS: 20020064170
ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A network switch includes an input layer to receive a data stream with a set of cells. Each cell includes data and a header to designate a destination device. The input layer includes a set of input layer circuits. A selected input layer circuit of the set of input layer circuits receives the data stream. The selected input layer circuit includes a set of queues corresponding to a set of destination devices. The selected input layer circuit is configured to assign a selected cell from the data stream to a selected queue of the set of queues. The selected queue corresponds to a selected destination device specified by the header of the selected cell. An intermediate layer includes a set of intermediate layer circuits, each intermediate layer circuit has a set of buffers corresponding to the set of destination devices. A selected intermediate layer circuit of the set of intermediate layer circuits receives the selected cell and assigns the selected cell to a selected buffer corresponding to the selected destination device. An output layer includes a set of output layer circuits corresponding to the set of destination devices. A selected output layer circuit of the set of output layer circuits stores the selected cell prior to routing the selected cell to a selected output layer circuit output node.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NETLOGIC MICROSYSTEMS, INC.MOUNTAIN VIEW, CA595

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rahman, Mizanur M Cupertino, CA 16 43
Siu, Kai-Yeung(Sunny) San Jose, CA 5 13
Yang, Brain Hang Wai Monterey Park, CA 5 11

Cited Art

Patent Info (Count) # Cites Year
 
HITACHI, LTD. (2)
5,285,444 Multi-stage link switch 16 1992
6,067,654 ATM switch and control method thereof 6 1999
 
ROCKSTAR BIDCO, LP (2)
5,896,380 Multi-core ATM switch with cells in the core from an inlet for an outlet being aligned 34 1997
6,473,428 Multi-threaded, multi-cast switch 26 1998
 
APPLE INC. (1)
6,580,721 Routing and rate control in a universal transfer mode network 66 1998
 
ASCEND COMMUNICATIONS, INC. (1)
6,570,854 System and method for performing explicit rate marking for flow control in ATM networks using a virtual bandwidth-based methodology 4 1999
 
Aztech Partners, Inc. (1)
6,751,219 Multicast packet duplication at random node or at egress port with frame synchronization 27 2000
 
BROADCOM CORPORATION (1)
6,885,657 Network telephony system 26 1999
 
CIENA CORPORATION (1)
6,324,165 Large capacity, multiclass core ATM switch architecture 122 1997
 
ERICSSON INC. (1)
6,263,053 System and method for processing telephone calls 7 1998
 
FUJITSU SEMICONDUCTOR LIMITED (1)
6,188,686 Switching apparatus 46 1997
 
HUGHES ELECTRONICS CORPORATION (1)
2004/0246,891 Air interface frame formatting 28 2003
 
IKANOS COMMUNICATIONS, INC. (1)
6,122,279 Asynchronous transfer mode switch 32 1995
 
INTEL CORPORATION (1)
6,661,773 Method for detection of stale cells following route changes in a data communication 44 1999
 
LUCENT TECHNOLOGIES INC. (1)
5,724,352 Terabit per second packet switch having assignable multiple packet loss probabilities 38 1995
 
NEC CORPORATION (1)
6,370,162 Frame aligner including two buffers 5 1998
 
NOKIA SIEMENS NETWORKS GMBH & CO. KG (1)
6,331,981 Method and network component for switching low bit rate connections between input modules and output modules in a communication network 23 1998
 
RAKUTEN, INC. (1)
5,337,308 Low delay ATM switching system using idle cells stamped with reference time 33 1993
 
XYLAN CORPORATION (1)
6,094,430 Switching fabric for a digital traffic switch 11 1997

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
HITACHI, LTD. (1)
7,602,783 Packet switch and switching method for switching variable length packets 1 2002
 
NETLOGIC MICROSYSTEMS, INC. (1)
7,835,334 Output queued switch with a parallel shared memory, and method of operating same 0 2008
 
ROCKSTAR BIDCO, LP (1)
7,843,905 Modular high-capacity switch 1 2007

Maintenance Fees

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7.5 Year Payment $3600.00 $1800.00 $900.00 Mar 2, 2016
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 2, 2020
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