International Business Machines Corporation

At&t Intellectual Property I, LP

Cisco Technology, Inc.

Cisco Systems Inc.

At&t Global Network Services France Sas

Aline Fichou

Claude R Galand

Aurelien Bruno

Jean-Francois Le Pennec

Jacques Fieschi

Pierre-Andre Foriel

Diana L Toll

Laurent Nicolas

Ilias Iliadis

Didier F Giroir

Maurice Duault

Victor Spagnol

Jean-François Le Pennec

Olivier Bertin

Aurélien Bruno

Francois Kermarec

Herve Tremeur

Jean-Francoise Le Pennec

John M Ciesielczyk

Marcus Enger

Claude Basso

Edward Stanely Suffern

Ken Van Vu

Gerard Richter

Bernard Y Pucci

Jean-Marc Berthaud

Jean-Marie L Munier

Gerald Arnold Marin

Olivier Maurel

Raif O Onvural

Pierre Austruy

Philippe Pierre Louis

Serge Fdida

Jean-Francois LePennec

Xavier Jacquart

Serge Leroy

Yves Nicolas Etorre

Systems and methods for managing network traffic receives, at a grade of service device, network traffic information for a plurality of network traffic channels from a network device separate from the grade of service device. The network traffic information is compared to a threshold to determine a behavior value for each network traffic channel. Each network traffic channel is mapped to a grade of service according to the behavior value.

Grade of service control closed loop

A method including formatting an advertisement message having a dedicated preferred route to one of a first physical entity and a first logical entity of a first autonomous system ('AS'), the dedicated preferred route being based on at least two routing attributes, and transmitting the advertisement message from the first AS to a second AS. A routing device including a formatting module formatting an advertisement message having a dedicated preferred route to one of a first physical entity and a first logical entity of a first autonomous system ('AS'), the dedicated preferred route being based on at least two routing attributes, and a transmitting module transmitting the advertisement message from the first AS to a second AS.

Method and system for gateway selection in inter-region communication on IP networks

Concepts and technologies are disclosed herein for providing a closed control loop for data centers. The data centers can receive monitoring data that can include congestion data and class of service data. The data centers can store the monitoring data in a data storage device, analyze the monitoring data, and determine that a performance threshold is satisfied. In response to a determination that the performance threshold is met, the data centers can determine that a time-based threshold is met. In response to a determination that the time-based threshold is met, the data centers can adjust execution of a hosted service.

Closed control loops for data centers

Virtual Private Network (VPN) dedicated to a customer using a physical transmission network based upon Multi-Protocol Label Switching (MPLS) technology including a plurality of Provider (P) devices and a plurality of Provider Edge (PE) devices, the customer owning at least two specific Customer Edge (CE) devices amongst a plurality of CE devices, a specific CE device being attached to a specific PE device and enabling the customer to gain access to any other CE device belonging to the same VPN, by the intermediary of PE devices to which are attached the CE devices. The VPN comprises several billing zones () being each defined by the application of a single flat rate. A PE device () belonging to each billing zone includes a virtual router () associated with each billing zone, two virtual routers being interconnected by a virtual circuit () transmitting all the traffic exchanged between the two associated billing zones so that the traffic flowing between the two billing zones can be measured and therefore precisely billed to the customer.

Virtual private network based upon multi-protocol label switching adapted to measure the traffic flowing between single rate zones

A method for operating a node in a computer network is disclosed, where the network is made up of nodes connected by links. The method has the steps: determining an alternate path for one or more links; reserving resources for the alternate path; and rerouting traffic on the alternate path in case of a link failure. The alternate path may be periodically updated. A plurality of alternate paths may be maintained. The alternate paths may not have any links in common. User traffic may be rerouted substantially simultaneously to each link of the alternate path in the event of failure of a primary path.

Method and system for a local and fast non-disruptive path switching in high speed packet switching networks

A method and system of transmitting data frames from a sending unit () to a receiving unit () in a data transmission network comprising at least a backbone () wherein the data are transmitted over high speed links enabling long Maximum Transmission Units (MTU) between an ingress node () connected to the sending unit by a first access link () and an egress node () connected to the receiving node by a second access link (), with at least one of the first and second access links being a low speed access link requiring the data frames to be segmented into short MTUs between the sending unit and the ingress node and between the egress node and the receiving unit. A plurality of consecutive segmented data frames () belonging to the same flow of data transmitted from the sending unit to the ingress node are assembled by the ingress node into an assembled data frame () corresponding to the long MTU, the assembled data frame is transmitted over the backbone from the ingress node to the egress node at a high speed authorized by the backbone links, and the assembled data frame is de-assembled into consecutive segmented data frames () corresponding to the short MTUs by the egress node before being transmitted to the receiving unit.

Method and system for assembling segmented frames of data transmitted over a backbone network

A method and system for reserving a virtual connection from a source workstation to a destination workstation. Packets of data are transmitted over a network between an ingress node of the source workstation and an egress node of the destination workstation. In accordance with the method of the present invention, a reservation request is delivered from the source workstation to a reservation server. The reservation server includes a user database for storing the identification of each user allowed to access to the reservation server and also stores the rights of each user. The reservation server further includes a network database for storing the information describing a network capacity required to set up the virtual connection. A verification is then performed to determine whether or not the reservation request may be validated in view of user information within said source workstation. A second verification is performed to determine whether or not the capacity of said network is sufficient to meet the requirements of the reservation request. In response to the capacity of the network being sufficient to meet the requirements of the reservation request, a virtual connection is established from the ingress node to the egress node.

System and method for reserving a virtual connection in an IP network

Data transmission system for transmitting packets of data from a source workstation () to a destination workstation () wherein the packets of data are transmitted over at least a first IP network () and a second IP network () between an ingress node () connected to the source workstation in the first network and an egress node () connected to the destination workstation in the second network. The system comprises a local reservation server () in the first network accessible by the source workstation and a remote reservation server () in the second network accessible by the local reservation server. The local reservation server includes connection setup means for setting up a virtual connection meeting a predefined requirement of Quality of Service from the ingress node to the egress node in response to a request from the source workstation and bandwidth request means for requesting additional bandwidth in the second network to the remote reservation server.

Data transmission system for reserving a virtual connection over multiple IP networks by means of a reservation

An adaptive apparatus and method for managing a playout buffer (POB) in an edge node of a packet-based data communications network, such as an ATM network, in order to reduce the end-to-end communication delay introduced thereby and to allow the POB filling level to be corrected in the event of clock speed differences. A monitoring mechanism determines if the minimum filling level of the playout buffer over a time period whereby the average filling level of the playout buffer is reduced according to the minimum filling level of the playout buffer over the time period.

Adaptive playout buffer and method for improved data communication

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La Colle sur Loup, France

Aline Fichou