Lucent Technologies Inc.

Alcatel-lucent USA Inc.

Alcatel Lucent

Nokia Solutions and Networks Oy

Provenance Asset Group LLC

Muralidharan Sampath Kodialam

Tirunell V Lakshman

Fang Hao

Sudipta Sengupta

Thyagarajan Nandagopal

Sarit Mukherjee

Wing Cheong Lau

T V Lakshman

Haoyu Song

Kiran Meghashyam Rege

Hong Jiang

Yung-Terng Wang

Pantelis Monogioudis

Walid Ahmed

Krishna P Puttaswamy Naga

Hyunseok Chang

Rene-Jean Essiambre

Tv Lakshman

Hui Joyce Zhang

Dimitrios Stiliadis

Anlu Yan

Limin Wang

Oded Hauser

Krishna Balachandran

Roland Ryf

Mooi Choo Chuah

Joseph H Kang

Randeep Singh Bhatia

Kemal Mehmet Karakayali

Adiseshu Hari

Hongbin Ji

Lotfi Benmohamed

Paul Claisse

Joseph G Kneuer

Isaac Keslassy

Koushik Kar

Sugam Agarwal

Tirnuell V Lakshman

Martin Ernst Mueller

Tirunellai V Lakshman

Vineet Mehta

Juan Ignacio Bonetti

Zizhong Cao

Myung Jin Lee

Sunghwan Ihm

In some embodiments, there may be provided a method that includes receiving a first traffic matrix; receiving information regarding links associated with each segment of the network; determining a total amount of segment flow using the at least one non-linear deflection parameter applied to the traffic demand of the first traffic matrix; determining a link flow for each of the links using the total amount of segment flow and the second input to the machine learning model; determining link utilization for each of the links using the link flows and a capacity for each of the links; learning, by the machine learning model using a gradient descent, a minimum of a maximum amount of the link utilization over the links by at least adjusting a value of the at least one non-linear deflection parameter. Related systems, methods, and articles of manufacture are also disclosed.

Machine learning segment routing for multiple traffic matrices

In some embodiments, there may be provided a method that includes receiving, as a first input to a machine learning model, a measured link load; receiving, as a second input to the machine learning model, information indicating a network topology; receiving, as a third input to the machine learning model, at least one deflection parameter; learning, by the machine learning model, a first output to provide at least one updated deflection parameter, wherein the at least one updated deflection parameter indicates the fractional amount of traffic that is to be carried between the source node and the destination node and deflected through the intermediate node; and learning, by the machine learning model, a second output to provide dual variables that serve as a surrogate for a traffic matrix that could have generated the measured link load that is measured for the link of the network.

Telemetry-based segment routing using machine learning

System, method, and software for detecting anomalies in data generated by microservices. In one embodiment, an anomaly detector collects performance metrics for a microservice deployed in a data center for an application. The anomaly detector transforms the performance metrics into a time-series structured dataset for the microservice, and feeds the structured dataset to a machine learning system to determine whether an anomaly exists in the structured dataset based on an anomaly detection model. The anomaly detector performs an anomaly classification with the machine learning system based on an anomaly classification model and the structured dataset when an anomaly is detected in the structured dataset, and performs an action based on the anomaly classification.

Anomaly detection for microservices

Packet-processing circuitry including one or more flow caches whose contents are managed using a cache-entry replacement policy that is implemented based on one or more updatable counters maintained for each of the cache entries. In an example embodiment, the implemented policy enables the flow cache to effectively catch and keep elephant flows by giving to the caught elephant flows appropriate preference in terms of the cache dwell time, which can beneficially improve the overall cache-hit ratio and/or packet-processing throughput. Some embodiments can be used to implement an Open Virtual Switch (OVS). Some embodiments are advantageously capable of implementing the cache-entry replacement policy with very limited additional memory allocation.

Flow cache management

A machine-implemented method of constructing multidimensional constellations having increased minimum distances between the constellation symbols thereof compared to those of comparable conventional constellations, e.g., QPSK and QAM constellations. An example multidimensional constellation so constructed may have eight or more dimensions and may be mapped onto degrees of freedom selected from, e.g., time, space, wavelength, polarization, and the in-phase and quadrature-phase components, of the optical field. The disclosed method is beneficially used to generate multidimensional modulation formats characterized by constant total optical transmit power per modulation time slot and/or applicable to the transmission of multidimensional constellation symbols having separate parts thereof primarily carried by different respective guided modes of the optical fiber. Example methods and apparatus for implementing such multidimensional modulation formats are also disclosed herein.

Optical communication system employing a multidimensional constellation with an increased minimum distance

Various embodiments relate to a method for accelerating blockchains, the method comprising the steps of waiting for an event to occur, receiving a block, determining whether the block is valid, adding the block to a block tree, determining whether the block is a singular candidate, starting a timer for the block, determining whether the timer has expired for the block, determining whether the block is still singular after the time has expired for the block and processing the singular block.

Method and apparatus for accelerating the blockchain for secure and high throughput applications

An optical data receiver includes optical hybrids, light detectors and a digital signal processor. Each optical hybrid outputs mixtures of a corresponding one of the polarization components of a received data-modulated optical carrier with reference light. Each light detector outputs digital measurements of the mixtures from a corresponding one of the optical hybrids. The digital signal processor identifies data symbols of a constellation having parts transmitted on both polarization components of the data-modulated optical carrier responsive to receipt of the digital measurements. The transmitted data-modulated optical carrier has about a same total light intensity in each modulation time slot thereof. Each data symbol is defined by in-phase and quadrature-phase electric field coordinates of both polarization components. Pairs of in-phase and quadrature-phase electric coordinates of each of the polarization components are on a preselected set of one or more concentric circles about an origin. The constellation has 4D dimensions, D being an integer.

Coherent optical communication with constellations having coordinates on circles

A data block storage management capability is presented. A cloud file system management capability manages storage of data blocks of a file system across multiple cloud storage services (e.g., including determining, for each data block to be stored, a storage location and a storage duration for the data block). A cloud file system management capability manages movement of data blocks of a file system between storage volumes of cloud storage services. A cloud file system management capability provides a probabilistic eviction scheme for evicting data blocks from storage volumes of cloud storage services in advance of storage deadlines by which the data blocks are to be removed from the storage volumes. A cloud file system management capability enables dynamic adaptation of the storage volume sizes of the storage volumes of the cloud storage services.

Apparatus and method for managing storage of data blocks

We disclose a signal-routing method directed at improving the throughput of an optical network by taking into account the fiber nonlinearity in the process of solving a joint signal-routing and power-control problem for the optical network. Based on the obtained solution, a network controller may set the signal-routing configurations of the various network nodes and the optical gains of the various optical amplifiers to enable the optical network to carry the traffic in a manner that results in a higher throughput than that achievable with the use of conventional signal-routing and/or power-control methods.

Joint signal-routing and power-control for an optical network

The invention includes a method for routing traffic from a first node towards a plurality of intermediate nodes. A method includes receiving traffic at a first node and routing respective portions of the received traffic toward respective intermediate nodes according to respective traffic weighting factors associated with the intermediate nodes. Upon receiving the respective portions of the traffic, the intermediate nodes may then route the traffic toward one or more destination nodes, or may route the traffic toward another plurality of intermediate nodes before the traffic is routed to a destination node. The intermediate node traffic weighting factors may be dependent on the first node and the destination node, or may be independent of the first node and the destination node.

Method for routing traffic using traffic weighting factors

A method and system for scheduling tasks is provided. A plurality of lower bound completion times is determined, using one or more computer processors and memory, for each of a plurality of jobs, each of the plurality of jobs including a respective subset plurality of tasks. A task schedule is determined for each of the plurality of processors based on the lower bound completion times.

Scheduling in MapReduce-like systems for fast completion time

A method, system and apparatus for a assigning keywords to a web page using keyword data from the web page itself, web pages having links pointing to the web page, and web pages pointed to by a link in the web page, wherein the keyword data from the multiple web pages is processed to provide a relevant set of keyword data for the web page.

Keyword assignment to a web page

Apparatuses, methods and articles of manufacture for performing data leakage prevention are provided. Data leakage prevention may be performed by determining a signature of a transmitted document, the transmitted document being in transit to a location beyond a network boundary. The signature of the transmitted document is compared with one or more signatures of documents authorized to be transmitted beyond the network boundary. The transmitted document is prevented from being transmitted beyond the network boundary if the signature of the document does not correspond to a signature of a document authorized to be transmitted beyond the network boundary.

Data leakage prevention for cloud and enterprise networks

A capability is provided for representing a set of data values using data structures, including converting a binary trie data structure representing the set of data values to a shape graph data structure representing the set of data values. The shape graph data structure is generated from the binary trie data structure based on the shapes of the sub-trees rooted at the nodes of the binary trie data structure. The shape graph includes vertices representing shapes of the sub-trees of the binary trie data structure. A shape graph data structure permits operations similar to the operations that may be performed on the binary trie data structure for performing lookups for data values from the set of data values, while at the same time reducing the structural redundancy of the binary trie data structure such that the shape graph data structure provides significant improvements in memory usage over the binary trie data structure.

Method and apparatus for generating a shape graph from a binary trie

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Marlboro, NJ, United States of America

Muralidharan Sampath Kodialam