Verizon Patent and Licensing Inc.

Verizon Services Corporation

Canoga Perkins Corporation

Roman Krzanowski

Vincent Anthony Alesi

William Arthur Bjorkman

Frank M Shannon

Charles Thomas Wilkes

Gregory Dale Best

Haidar Chamas

John L Burke

Ron Hudson

Mustansir M Jhaveri

Steve O Akinsola

Keith Yendall

Leo Washenfeldt

John Capps

Keynam Hedayat

Digvijay Singh

Michael U Bencheck

Stevan Harvey Leiden

Virgil Vladescu

Te-Sheng Lin

Sanjay Kohli

Te Sheng Lin

Jean M McManus

Richard L Wheeler

Ralph Silvestri

Yvonne C Parsons

Yvonne Cuilian Fang Parsons

Prodip Sen

William Ed Garrett, Jr

Hicham Zhiri

A method may include receiving a message from a first Ethernet interface in a second Ethernet interface, wherein the message includes a first attribute indicative of an Ethernet service at the first interface according to a first operation, administration, or management (OAM) protocol. The method may further include mapping the first attribute to a second attribute, wherein the second attribute is in accordance with a second OAM protocol different than the first OAM protocol. The method may further include performing an operation at the second interface based on the second attribute.

Fault signaling for ethernet

A request is received to compute a route from a start point to an end point. The route is computed using map data that includes a plurality of map elements, and route data that includes rules associated with the map elements, each of the rules being triggered by a condition flag that specifies a condition according to which the rule should be applied. The route data is based inputs related to driver experience in a geographic area associated with the route, and the inputs are based on stored data and not real-time or near-real-time data.

Route selection

A master video server may deliver video streams to multiple sub-master video servers pursuant to the request of each sub-master video server. Each sub-master video server, in turn, may deliver video steams to multiple slave video servers pursuant to the request of each slave video server. Each sub-master video server may also deliver video streams to one or more other sub-master video servers pursuant to the request of each of the other sub-master video servers.

Distributed content delivery network architecture

Disclosed is a method and system allowing for network-wide synchronization of performance tests. The system consists of network collection devices or test probes and a central management system with pre-configured data structures, a test trigger mechanism and control algorithm for providing a precise control of traffic load and network-wide coordination of executing performance tests. In addition, multiple test patterns can be selected and customized for the specific needs and constraints of different types of networks to form the basis of scheduling performance tests to optimize the performance testing efficiency.

Methods, systems and computer program product for synchronization of network performance tests

A method includes detecting, by a first network device, a configuration problem at a second network device, where the first and second network devices are associated with a link aggregation group (LAG) coupling the first and second network devices. The method also includes de-activating, by the first network device, one or more links in the LAG in response to detecting the configuration problem. The method further comprises maintaining at least one of the links in the LAG as an active link and allowing traffic to be forwarded on the active link in the LAG.

Link aggregation protection

A method includes generating, by a first network device, test traffic to be transmitted to a second network device. The first and second network devices are coupled via a number of communication links, where one of links is a backup link. The method also includes transmitting, by the first network device, the test traffic to the second network device at periodic intervals via the backup link, receiving, by the second network device, the test traffic and monitoring the received test traffic. The method further includes comparing the monitored test traffic to a threshold, determining whether the monitored test traffic meets the threshold, and generating an alarm or notification message, in response to determining that the monitored test traffic does not meet the threshold.

Detecting error conditions in standby links

A method may include providing content or a service accessible via a network to a user, and issuing a usage token having a usage credit that corresponds to a usage restriction associated with the user's network access subscription.

Token-based crediting of network usage

A device may receive first data at a channel over a network, the device having an interface for the channel and other channels. In addition, the device may measure over a particular time interval, a burst size and an information arrival rate at the channel based on received data. The device may also determine whether the burst size is greater than a first burst size metric, the first burst size metric initialized to a committed burst size of the channel. When the burst size is determined to be greater than the first burst size metric, the device may set a second burst size metric to a sum of the first burst size metric and an increment value. Furthermore, the device may determine whether the burst size is greater than the second burst size metric after the second burst size metric is set to the sum of the first burst size metric and the increment value. The device may also increase a first amount, of a resource allocated to the channel of the network device, by an increment corresponding to the second burst size metric after determining that the burst size is not greater than the second burst size metric. The device may decrease a second amount, of the resource allocated to the other channels, by the increment, when the first amount of the resource is increased by the increment.

Using dynamic burst size metric to mark data

A computer-implemented method may include measuring a performance of a virtual channel carrying packets through a transport network for a time period, measuring a performance of an ingress interface to the transport network carrying the virtual channel packets for the time period, and measuring a performance of an internal interface carrying the virtual channel packets internal to the transport network for the time period. The computer-implemented method may determine that the performance of the virtual channel during the time period does not meet a first performance standard, and, when the performance of the virtual channel does not meet the first performance standard, may automatically determine whether the performance of the ingress interface meets a second performance standard and whether the performance of the internal interface meets a third performance standard.

Identifying causes of service level agreement and performance violations

A method may include receiving, by a first Ethernet interface, a message from a remote second Ethernet interface via an Ethernet operation, administration, or management (OAM) channel. The first Ethernet interface may determine whether the message includes a request for status information regarding an identified higher layer service. The first Ethernet interface may determine, in response to the message, a current status of the identified higher layer service. A response message may be generated to include the current status. The response message is transmitted from the first Ethernet interface to the remote second Ethernet interface via the Ethernet OAM channel.

Service status signaling in Ethernet networks

In one of many possible embodiments, a system includes a session sender configured to define and transmit a sender test packet, and a session reflector communicatively coupled to the session sender. The session reflector is configured to receive the sender test packet from the session sender, determine whether the sender test packet is received by a predetermined time. Upon a determination that the sender test packet is received by the predetermined time, the session reflector is configured to define a response test packet and transmit the response test packet to the session sender. The response test packet is defined to include data for calculating at least one two-way performance metric. In some embodiments, the session reflector is configured to record information for calculating at least one one-way performance metric. In certain embodiments, a fetch client is configured to remotely retrieve the recorded information from the session reflector.

Systems and methods for measuring network performance

The present invention, including system methods and computer program product, provide the ability to control the flow of traffic into an aggregated trunk port in a network. This is performed by monitoring the trunk port of an aggregation packet switch for congestion and limiting the traffic flowing into the aggregation packet switch through virtual connections with one or more user network interfaces. An access control system executing an access control algorithm monitors the trunk port and controls the user network interfaces to limit the traffic the passes through the trunk port in the event of traffic congestion. Traffic may be limited on the basis of the class of service, the virtual connection, or other parameters.

Dynamic service-aware flow control in packet networks

Traffic flow is monitored in a plurality of links. Based on the monitoring, a manner in which traffic is allocated to the links is determined, and at least one policer is assigned according to the manner in which traffic is allocated to the links.

Policing virtual connections

A method includes monitoring, by a first network device, traffic from a customer device, wherein the traffic is to be forwarded via a provider's network. The method also includes identifying a traffic pattern associated with the traffic, identifying a link on which the identified traffic pattern was transmitted and generating performance monitoring traffic. The method further includes forwarding, by the first network device, the performance monitoring traffic to the provider's network via the link on which the identified traffic pattern was transmitted.

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White Plains, NY, United States of America

Roman Krzanowski