Avaya Inc.

Avaya Technology LLC

Facebook, Inc.

Big Switch Networks, Inc.

Omar Castillo Baldonado

Michael Alan Lloyd

Sean P Finn

Mansour Jad Karam

James G McGuire

Herbert S Madan

James G Mcguire

James D Williams

Petr V Lapukhov

Robert K Vaterlaus

Pierre Fraval

Jose-Miguel Pulido

Manikandan Somasundaram

Paul M Saab

Daniel Talayco

Robert Edward Adams

Robert Wesley Sherwood

Faisal Siddiqi

Guido Appenzeller

Jose-Miguel Pulido Villaverde

R Kyle Forster

Wayne A Feick

Herbert S Madden

John G Leddy

Timothy F Kaye

Jose-Miguel Puildo Villaverde

Ryan J Tetreault

Jose Miguel Pulido

Disclosed embodiments include a method of operation of a distributed network system. The method includes nodes of the network system that send messages over a protocol-independent message bus, and other nodes that receive the messages. Content from the received messages can be stored in a database distributed among nodes of the network system. At least some of the content stored in the database is published. The published content can be accessed by one or more applications to perform one or more functions.

Modular architecture for computer network operations

A network of switches that forwards network packets between end hosts may be controlled by a controller. The controller may maintain information that identifies subsets of the end hosts that are associated with respective broadcast domains. The controller may configure the switches in the network to identify broadcast network packets and to forward the broadcast network packets to the controller. The controller may identify which broadcast domain is associated with a received broadcast network packet based on information such as source information retrieved from the broadcast network packet. The controller may identify switches that are coupled to the end hosts of a broadcast domain associated with the received broadcast network packet. The controller may forward the broadcast network packet to the identified switches through network control paths and may direct the identified switches to forward the broadcast network packet to end hosts of the associated broadcast domain.

Systems and methods for forwarding broadcast network packets with a controller

A network of switches that forwards network packets between end hosts may be controlled by a controller. The controller may maintain information that identifies subsets of the end hosts that are associated with respective broadcast domains. The controller may use network topology information to determine which of the switches are coupled in a forwarding tree formed from network paths between the end hosts of a broadcast domain. The controller may be used to configure the switches with an identifier that identifies which broadcast domain is associated with each subset of end hosts. The controller may configure switches of a given forwarding tree that are coupled to end hosts of an associated broadcast domain to modify broadcast network packets received from the end hosts with the identifier and to forward the modified broadcast network packets along the forwarding tree exclusively to end hosts of the associated broadcast domain.

System and methods for managing network packet broadcasting

Network switches that are controlled by a controller server may contain ports through which network packets are received and forwarded. An architect may configure the controller server to create virtual switches. Each virtual switch may be formed from a subset of the ports of the network switches. The architect may assign administrators to the virtual switches. The administrators may configure the virtual switches. An administrator may use a command line interface to configure a virtual switch. The administrator may use commands such as a show port command, an access list command, a show access list command, and a membership rule command to manage the virtual switch. The controller server may prevent the administrator from logging on to virtual switches that have been assigned to other administrators.

Systems and methods for managing virtual switches

The present invention is directed to simultaneously monitoring the performance of differing communication paths between selected sites for detecting performance problems over one of the monitored paths, and moving packet traffic to one or more other better performing paths.

Assured path optimization

The present invention is directed to methods of and systems for adaptive networking that monitors a network resource of a network. The method monitors an application performance. The method categorizes a first subset of traffic of the network. The categories for the first subset include trusted, known to be bad, and suspect. The method determines an action for a second subset of traffic based on the category for the first subset of traffic. Some embodiments provide a system for adaptive networking that includes a first device and traffic that has a first subset and a second subset. The system also includes a first resource and a second resource for the transmission of the traffic. The first device receives the traffic and categorizes the traffic into the first and second subsets. The first device assigns the first subset to the first resource. Some embodiments provide a network device that includes an input for receiving incoming traffic, an output for sending outgoing traffic, a categorization module that categorizes incoming traffic, and a resource assignment module that assigns the categorized traffic for a particular resource. A traffic category for the device includes suspect traffic.

Methods and systems for network traffic security

A system for the assessment of network performance criteria, and applying this criteria to the classification of network addresses into appropriate ranges, using these ranges to consolidate performance measurements for the associated addresses, and applying these metrics toward the optimization of the network towards performance or policy objectives.

Method and apparatus for the assessment and optimization of network traffic

The present invention provides embodiments of a network monitoring system that includes a scheduling agent for generating groupings of test agents and scheduling network measurements to be performed by each test agent grouping. The system may provide identifiers to members of first and second sets of objects. Then, the system can generate first and second sequences of the identifiers for each of the first and second sets, respectively and associate the identifiers to provide a plurality of groupings of identifiers. Finally the system may schedule a corresponding event for each of the grouping of identifiers. The systems and methods present can require very little state memory, ensure fair coverage of the object groupings; and can avoid the problems associated with round robin scheduling.

Hierarchical fair scheduling algorithm in a distributed measurement system

The present invention is directed to using measurement packets to compute network performance. Embodiments that send, receive and both send and receive measurement packets are described. Some embodiments are described that compute statistics based at least partly on measurement traffic. Some embodiments are described that communicate computed statistics within measurement traffic. Some embodiments are described that rank and select paths based at least partly on computed statistics.

Method and apparatus for communicating data within measurement traffic

We describe multiple methods and apparatuses for characterizing the quality of a network path by means of metrics that at the same time are (1) additive and (2) characterize the performance of network applications.

Method and apparatus for characterizing the quality of a network path

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Palo Alto, CA, United States of America

Omar Castillo Baldonado