Patent application number | Description | Published |
20110276682 | System and Method for Determining Application Dependency Paths in a Data Center - A method and a system are disclosed for determining application dependency paths in a data center. The method and the system captures application traffic volume data on the servers with switches and monitoring agents; generates an application traffic matrix of all the components of the applications based on the application traffic volume data; estimates the number of the applications in the data center from the traffic matrix with a Rank Estimation via Singular Value Decomposition or Power Factorization Residue Errors process; and decomposes the traffic matrix into a first matrix and a second matrix with a non-negative matrix factorization process using the estimated number of applications. The first matrix represents a set of the components belonging to each of the applications and the second matrix represents the amount of traffic generated by each application over time. Any noise in the first and second matrices is removed with a concurrent volumes ratios based correlation process. | 11-10-2011 |
20120008943 | OPTICAL SWITCHING NETWORK - Systems and methods are disclosed for a method to communicate over an optical network by using hop-by-hop routing over an optical network; and dynamically constructing a network topology. | 01-12-2012 |
20120008944 | OPTICAL SWITCHING NETWORK - Systems and methods are disclosed for a method to communicate over an optical network by using hop-by-hop routing over an optical network; and dynamically constructing a network topology. | 01-12-2012 |
20120008945 | OPTICAL SWITCHING NETWORK - Systems and methods are disclosed to communicate over an optical network by using hop-by-hop routing over an optical network; and dynamically constructing a network topology. | 01-12-2012 |
20120099863 | HYBRID OPTICAL/ELECTRICAL SWITCHING SYSTEM FOR DATA CENTER NETWORKS - In one aspect, a system includes one or more electrical switches to transfer data in a data network; one or more optical switching groups coupled to each electrical switch, each switching group having one or more server racks, each server rack coupled to a top of rack (TOR) switch and an optical transceiver coupled to the TOR switch; and an optical switching unit (OSU) coupled to the one or more optical switching groups. | 04-26-2012 |
20120191843 | SYSTEMS AND METHODS FOR APPLICATION DEPENDENCY DISCOVERY - Systems and methods for discovering a set of applications that run on a network are disclosed. In accordance with one method, aggregate traffic volumes are determined for pairs of nodes on the network over a plurality of time intervals. The method further includes building a traffic matrix denoting each of the pairs of nodes and denoting respective aggregate traffic volume histories of each of the pairs of nodes that are based on the determined traffic volumes. In addition, the traffic matrix is formulated as a combination of bases vectors that model the set of applications. The bases vectors are determined by applying a covariance matrix adaptation evolutionary strategy based on the traffic matrix. An indication of the set of applications based on the bases vectors is output. | 07-26-2012 |
20120265868 | System and Method for End- or Service-Node Placement Optimization - A method for producing a set of optimized node placement solutions for plural nodes of a computer network includes temporarily relocating movable ones of the nodes in the network; for each temporarily relocated movable node, determining a thermal energy of the network resulting from its temporary relocation in the network; for each temporarily relocated movable node, determining a potential energy reduction in the network resulting from its temporary relocation in the network; for each temporarily relocated movable node, determining whether to accept or reject its temporary relocation in the network; accepting the temporary relocation if an acceptance probability is greater than a randomly generated number, the acceptance probability being a function of the potential energy reduction in the network; and repeating the aforementioned steps to generate a set of optimized node placement solutions. | 10-18-2012 |
20130176852 | Network Self-Protection - A device used in a network is disclosed. The device includes a network monitor to monitor a network state and to collect statistics for flows going through the network, a flow aggregation unit to aggregate flows into clusters and identify flows that can cause a network problem, and an adaptive control unit to adaptively regulate the identified flow according to network feedback. Other methods and systems also are disclosed. | 07-11-2013 |
20130185419 | OFSense: Light-Weight Networking Sensing With OpenFlow - A method for determining the state of an entire network, including state of applications and infrastructure includes receiving network control messages in an OpenFlow network, passing normal network control messages through OFSense, a control plane middleware, and constructing from the network control messages an application level connectivity graph to infer network delay between any two communicating server in the network and estimating an application response time of a given server in the network; and providing state of the network for enabling intelligent detection and diagnosis of infrastructure and application performance. | 07-18-2013 |
20130185438 | Policy-Aware Based Method for Deployment of Enterprise Virtual Tenant Networks - A method for policy-aware mapping of an enterprise virtual tenant network includes receiving inputs from a hosting network and tenants, translating resource demand and policies of the tenants into a network topology and bandwidth demand on each link in the network; pre-arranging a physical resource of a physical topology for clustering servers on the network to form an allocation unit before a VTN allocation; allocating resources of the hosting network to satisfy demand of the tenants in response to a VTN demand request; and conducting a policy aware VTN mapping for enumerating all feasibly resource mappings, bounded by a predetermined counter for outputting optimal mapping with policy-compliant routing paths in the hosting network. | 07-18-2013 |
20130191530 | FlowSense: Light-Weight Networking Sensing With OpenFlow - A method for determining the state of an entire network, including state of applications and infrastructure includes receiving network control messages in an OpenFlow network; passing normal network control messages through FlowSense, a control plane middleware, and constructing from the network control messages an application level connectivity graph to infer network delay between any two communicating server in the network and estimating an application response time of a given server in the network, the FlowSense including a network utilization procedure for computing the utilization of each link in the network derived from using captured messages triggered by switches when flow entries expire and providing state of the network for enabling intelligent detection and diagnosis of infrastructure and application performance. | 07-25-2013 |
20140047274 | Network Debugging - A debugging system used for a data center in a network is disclosed. The system includes a monitoring engine to monitor network traffic by collecting traffic information from a network controller, a modeling engine to model an application signature, an infrastructure signature, and a task signature using a monitored log, a debugging engine to detect a change in the application signature between a working status and a non-working status using a reference log and a problem log, and to validate the change using the task signature, and a providing unit to provide toubleshooting information, wherein an unknown change in the application signature is correlated to a known problem class by considering a dependency to a change in the infrastructure signature. Other methods and systems also are disclosed. | 02-13-2014 |
20140064066 | Data Processing - A method implemented in a network apparatus used in a network is disclosed. The method comprises collecting information about network topology from a network controller, collecting information about data movement, deciding routing in the network according to the information about network topology and the information about data movement, and providing information about the routing to the network controller, wherein the network controller enforces the routing in the network. Other methods, apparatuses, and systems also are disclosed. | 03-06-2014 |
20140098678 | Network Management - A method implemented in a network apparatus used in a network is disclosed. The method includes sensing network topology and network utilization, receiving a request from an application, deciding path setup requirement using network state information obtained from the network topology and the network utilization, and translating the path setup requirement into a rule to be installed. Other methods, apparatuses, and systems also are disclosed. | 04-10-2014 |
20140119728 | METHOD AND APPARATUS FOR IMPLEMENTING A MULTI-DIMENSIONAL OPTICAL CIRCUIT SWITCHING FABRIC - An optical switching system is described. The system includes a plurality of interconnected wavelength selective switching units. Each of the wavelength selective switching units is associated with one or more server racks. The interconnected wavelength selective switching units are arranged into a fixed structure high-dimensional interconnect architecture comprising a plurality of fixed and structured optical links. The optical links are arranged in a k-ary n-cube, ring, mesh, torus, direct binary n-cube, indirect binary n-cube, Omega network or hypercube architecture. | 05-01-2014 |
20140270761 | Method and Apparatus for Efficient and Transparent Network Management and Application Coordination for Software Defined Optical Switched Data Center Networks - Application actions are optimized by receiving actions from one or more distributed applications, translating the received actions into one or more network operation primitives, processing the network operation primitives to determine an optimized set of network operation primitives, determining an optimal execution sequence for the optimized set of network operation primitives, and executing the optimized set of network operation primitives based on the optimal execution sequence. | 09-18-2014 |
20140341568 | High-Throughput Network Traffic Monitoring through Optical Circuit Switching and Broadcast-and-Select Communications - A network traffic collecting and monitoring system includes a traffic processing and dispatching module that pre-processes network traffic received from traffic tapping modules. A traffic collecting module receives and consolidates the network traffic and sends the network traffic to higher-layer applications. A controller dynamically configures the traffic processing and dispatching module to achieve optimal measurement accuracy and network coverage. | 11-20-2014 |