Wing Kwong Cheung DeceasedSan Francisco, CA

8446914, May 21, 2013

Apr 22, 2011

13/092864

Joseph Juh-En Cheng - Palo Alto CA, US
Wing Cheung - Fremont CA, US
John Michael Terry - San Jose CA, US
Suresh Vobbilisetty - San Jose CA, US
Surya P. Varanasi - Dublin CA, US
Parviz Ghalambor - Los Altos CA, US

Brocade Communications Systems, Inc. - San Jose CA

H04L 12/56

370401, 370217, 370244, 370392

One embodiment of the present invention provides a switch. The switch includes a forwarding mechanism and a control mechanism. During operation, the forwarding mechanism forwards frames based on their Ethernet headers. The control mechanism operates the switch in conjunction with a separate physical switch as a single logical switch and assigns a virtual switch identifier to the logical switch, wherein the virtual switch identifier is associated with a link aggregation group.

2012011, May 3, 2012

Oct 29, 2010

12/916384

Wing Cheung - Fremont CA, US
Joseph Juh-En Cheng - Palo Alto CA, US
John Michael Terry - San Jose CA, US

Brocade Communications Systems, Inc. - San Jose CA

G11C 29/52
H03M 13/29
H03M 13/05
G11C 15/00
G06F 11/10

714758, 365 491, 365 4917, 714763, 714807, 714E11034

A memory system including a content addressable memory (CAM) array and a non-CAM array. The non-CAM array, which may share word lines with the CAM array, stores one or more error detection bits associated with each row of the CAM array. A state machine reads entries of the CAM array and corresponding error detection bits of the non-CAM array during idle cycles of the CAM array. Error detection logic identifies errors in the entries read from CAM array (using the retrieved error detection bits). If these errors are correctable, the error detection logic corrects the entry, and writes the corrected entry back to the CAM array (an updated set of error detection bits are also written to the non-CAM array). If these errors are not correctable, an interrupt is generated, which causes correct data to be retrieved from a shadow copy of the CAM array.

2013003, Jan 31, 2013

Oct 28, 2011

13/284829

Jian Liu - Palo Alto CA, US
Philip Lynn Leichty - Rochester MN, US
How Tung Lim - San Jose CA, US
John Michael Terry - San Jose CA, US
Mahesh Srinivasa Maddury - San Jose CA, US
Wing Cheung - Fremont CA, US
Kung Ling Ko - Union City CA, US

Brocade Communications Systems, Inc. - San Jose CA

G06F 17/30

707706, 707E17108

A LPM search engine includes a plurality of exact match (EXM) engines and a moderately sized TCAM. Each EXM engine uses a prefix bitmap scheme that allows the EXM engine to cover multiple consecutive prefix lengths. Thus, instead of covering one prefix length L per EXM engine, the prefix bitmap scheme enables each EXM engine to cover entries having prefix lengths of L, L+1, L+2 and L+3, for example. As a result, fewer EXM engines are potentially underutilized, which effectively reduces quantization loss. Each EXM engine provides a search result with a determined fixed latency when using the prefix bitmap scheme. The results of multiple EXM engines and the moderately sized TCAM are combined to provide a single search result, representative of the longest prefix match. In one embodiment, the LPM search engine supports 32-bit IPv4 (or 128-bit IPv6) search keys, each having associated 15-bit level 3 VPN identification values.

2013030, Nov 21, 2013

May 8, 2013

13/889637

Wing Cheung - Fremont CA, US
John Michael Terry - San Jose CA, US
Suresh Vobbilisetty - San Jose CA, US
Surya P. Varanasi - Dublin CA, US
Parviz Ghalambor - Los Altos CA, US

BROCADE COMMUNICATIONS SYSTEMS, INC. - San Jose CA

H04L 12/721

370397

One embodiment of the present invention provides a switch. The switch includes a forwarding mechanism and a control mechanism. During operation, the forwarding mechanism forwards frames based on their Ethernet headers. The control mechanism operates the switch in conjunction with a separate physical switch as a single logical switch and assigns a virtual switch identifier to the logical switch, wherein the virtual switch identifier is associated with a link aggregation group.