Juniper Networks, Inc.

Sun Microsystems, Inc.

Lucent Technologies Inc.

Cabletron Systems, Inc.

Alcatel-lucent USA Inc.

Gunes Aybay

Pradeep S Sindhu

Jean-Marc Frailong

Anjan Venkatramani

Quaizar Vohra

Jack W Kohn

Fuguang Shi

David Rowell

David J Lima

Jaya Bandyopadhyay

Srinivas Gadgil

Philip A Thomas

Eric T Anderson

Philip Arnold Ferolito

Valery Kugel

Hardik Bhalala

Olaf Moeller

Arijit Sarcar

Sandeep K Aggarwal

Prashant Anand

Sindhu Pradeep

James Michael Murphy

Joseph LaSalle White

Jayabharat Boddu

Sandeep Kumar

Abhijit Kumar Choudhury

Theodore John Schmidt

Ravi Shekhar

Christian Malouin

Roberto Marcoccia

Bendik Kleveland

Shreeram Siddhaye

Raghavendra Mallya

Pranay Pogde

Tri Luong Nguyen

Jainendra Kumar

George R Sosnowski

Arthi R Ayyangar

Euan F Mowat

Phalguni Nanda

Yafan An

Murali Vemula

Rakesh Dubey

Predrag Spasic

Anurag Agrawal

Harshad Bhaskar Nakil

Ashley N Saulsbury

Sanjay Vishin

Mike Morrison

Michael Francis O'Gorman

James Bauman

David A Penry

Paras Trivedi

Cliff Deguzman

In one embodiment, edge devices can be configured to be coupled to a multi-stage switch fabric and peripheral processing devices. The edge devices and the multi-stage switch fabric can collectively define a single logical entity. A first edge device from the edge devices can be configured to be coupled to a first peripheral processing device from the peripheral processing devices. The second edge device from the edge devices can be configured to be coupled to a second peripheral processing device from the peripheral processing devices. The first edge device can be configured such that virtual resources including a first virtual resource can be defined at the first peripheral processing device. A network management module coupled to the edge devices and configured to provision the virtual resources such that the first virtual resource can be migrated from the first peripheral processing device to the second peripheral processing device.

Methods and apparatus related to a flexible data center security architecture

In some embodiments, an apparatus includes a flow control module configured to receive a first data packet from an output queue of a stage of a multi-stage switch at a first rate when an available capacity of the output queue crosses a first threshold. The flow control module is configured to receive a second data packet from the output queue of the stage of the multi-stage switch at a second rate when the available capacity of the output queue crosses a second threshold. The flow control module configured to send a flow control signal to an edge device of the multi-stage switch from which the first data packet or the second data packet entered the multi-stage switch.

Methods and apparatus for flow control associated with a switch fabric

In one embodiment, an apparatus includes a switch core that has a multi-stage switch fabric. A first set of peripheral processing devices coupled to the multi-stage switch fabric by a set of connections that have a protocol. Each peripheral processing device from the first set of peripheral processing devices is a storage node that has virtualized resources. The virtualized resources of the first set of peripheral processing devices collectively define a virtual storage resource interconnected by the switch core. A second set of peripheral processing devices coupled to the multi-stage switch fabric by a set of connections that have the protocol. Each peripheral processing device from the first set of peripheral processing devices is a compute node that has virtualized resources. The virtualized resources of the second set of peripheral processing devices collectively define a virtual compute resource interconnected by the switch core.

Methods and apparatus related to virtualization of data center resources

In some embodiments, an apparatus includes a switch fabric having at least a first switch stage and a second switch stage, an edge device operatively coupled to the switch fabric and a management module. The edge device is configured to send a first portion of a data stream to the switch fabric such that the first portion of the data stream is received at a queue of the second switch stage of the switch fabric via the first switch stage of the switch fabric. The management module is configured to send a flow control signal configured to trigger the edge device to suspend transmission of a second portion of the data stream when a congestion level of the queue of the second switch stage of the switch fabric satisfies a condition in response to the first portion of the data stream being received at the queue.

In one embodiment, a processor-readable medium storing code representing instructions that when executed by a processor cause the processor to update, at a memory location, a first flow state value associated with a data flow to a second flow state value when at least one of a packet from the data flow is received or the memory location is selected after a time period has expired. At least a portion of the packet is analyzed when the second flow state value represents a flow rate of a network data flow anomaly.

Methods and apparatus for tracking data flow based on flow state values

A system includes a first switch fabric portion and a second switch fabric portion. The first switch fabric portion is disposed within a first chassis and has a module associated with a first stage of a switch fabric and a module associated with a second stage of the switch fabric. The module of the first switch fabric portion associated with the first stage of the switch fabric is configured to send data to the module of the first switch fabric portion associated with the second stage of the switch fabric. The second switch fabric portion is disposed within a second chassis and has a module associated with the second stage of the switch fabric. The module of the first switch fabric portion associated with the first stage of the switch fabric is configured to send data to the module of the second switch fabric portion associated with the second stage of the switch fabric.

Distributed multi-stage switch fabric

An optical transmitter may generate a first optical signal having a first wavelength and a second optical signal having a second wavelength. The optical transmitter may output the first and second optical signals to a link without performing a multiplexing operation. The optical transmitter may output part of the first optical signal to the link while part of the second optical signal is being output to the link. An optical receiver may receive the first and second optical signals, via the link, as separate optical signals. The optical receiver may receive part of the first optical signal from the link while part of the second optical signal is being received from the link. The optical receiver may provide the first and second optical signals to a photodetector array that includes a first photodetector to detect the first optical signal and a second photodetector to detect the second optical signal.

Transmitter and receiver for direct communication of multiple optical wavelengths via an optical link

Growing community of inventors

Los Altos, CA, United States of America

Gunes Aybay