Patent application number | Description | Published |
20080222068 | Inferring Candidates that are Potentially Responsible for User-Perceptible Network Problems - Candidates that are potentially responsible for user-perceptible network problems may be inferred. In an example embodiment, a system includes an inference engine to produce a list of candidates that are potentially responsible for user-perceptible network problems, with the candidates being network components that may include both services and network elements. A response to a service request may be a non response, an incorrect response, an untimely correct response, or a timely correct response. The user-perceptible network problems may include the untimely correct response as well as the non response and the incorrect response. In another example embodiment, a method includes monitoring a network and producing a list of candidates that are potentially responsible for user-perceptible network problems. The candidates of the list may include both services and network elements of the monitored network. | 09-11-2008 |
20080222287 | Constructing an Inference Graph for a Network - Constructing an inference graph relates to the creation of a graph that reflects dependencies within a network. In an example embodiment, a method includes determining dependencies among components of a network and constructing an inference graph for the network responsive to the dependencies. The components of the network include services and hardware components, and the inference graph reflects cross-layer components including the services and the hardware components. In another example embodiment, a system includes a service dependency analyzer and an inference graph constructor. The service dependency analyzer is to determine dependencies among components of a network, the components including services and hardware components. The inference graph constructor is to construct an inference graph for the network responsive to the dependencies, the inference graph reflecting cross-layer components including the services and the hardware components. | 09-11-2008 |
20090319688 | PARTICIPATING IN CLOUD AS TOTALLY STUBBY EDGE - A Totally Stubby Edge (TSE) participates in a cloud under the condition that the TSE may select paths for frames that the TSE introduces to the cloud, but may not transit frames between nodes in the cloud. The edge submits, to an administrator of the cloud, a request to join the cloud. If the administrator allows the request, then the edge is given access to the address tables that define the structure of the cloud, and may insert itself into the structure. The edge may use the address tables to select paths for frames that the edge introduces to the cloud. Normally path decisions are made by devices that the administrator trusts and controls. However, since the TSE selects paths for its own frames but does not transit frames between other nodes in the cloud, the TSE may select paths even if it is untrusted by the administrator. | 12-24-2009 |
20100034084 | Reliability as an Interdomain Service - A system and techniques are disclosed that increase the redundancy (i.e., physical diversity and bandwidth) available to an IP network, thereby increasing the failure processing capability of IP networks. The techniques include pooling the resources of multiple networks together for mutual backup purposes to improve network reliability and employing methods to efficiently utilize both the intradomain and the interdomain redundancies provided by networks at low cost. | 02-11-2010 |
20100080144 | RESILIENT 1:N FIRST-HOP GATEWAY SELECTION MECHANISM - Exemplary methods, systems, and computer program products describe selecting a gateway based on health and performance information of a plurality of gateways. The techniques describe gateways advertising health and performance information, computing devices creating a table of this health and performance information, and selecting a gateway using the table. In response to changes in the health and performance information, the computing device may select a different gateway. The process allows network traffic load to be distributed across a plurality of gateways. This process further provides resilience by allowing a plurality of active gateways to substitute for a non-functioning gateway. | 04-01-2010 |
20100185961 | FLEXIBLE VISUALIZATION FOR SERVICES - Techniques are described for generating a user interface for visualizing a cloud service based on status and performance data of the cloud service obtained from data stores. A configuration file including declarative code may declare particular queries to status/performance data sources. The configuration file may also declare particular queries to topology data sources to obtain topology information. In accordance with the obtained information, objects representing the cloud service may be displayed. The objects correspond to particular hardware and software components, or logical grouping thereof, that are identified by the topology information. | 07-22-2010 |
20100229150 | SOFTWARE TEST BED GENERATION - A system and method is described for generating a test bed that is useful in developing, testing and/or supporting the use of software, such as software used for managing IT processes and/or monitoring equipment in an enterprise network. The system and method operates by processing a manifest to generate an instance space model of a computer network, wherein the manifest refers to a type space model of a computer network and includes an encoding that conveys parameters that are used to inflate the type space model of the computer network into the instance space model of the computer network. The type space model may comprise an object-relational directed graph that describes a plurality of potential directed graph instances and the instance space model may comprise one of the plurality of potential directed graph instances. | 09-09-2010 |
20100318609 | BRIDGING ENTERPRISE NETWORKS INTO CLOUD - An enterprise namespace may be extended into a cloud of networked resources. A portion of the cloud may be dynamically partitioned, and the extension of the enterprise namespace established within the portion. Cloud resources thus remain as easily accessible to enterprise users as those which are physically located on the enterprise network. Thus, components such as applications, virtual machine instantiations, application states, server states, etc., may be easily migrated between the enterprise network and the cloud. | 12-16-2010 |
20110032833 | OPTIMIZATION OF TRAFFIC ROUTING FOR DATA CENTER SERVICES - Techniques and systems for providing optimization of traffic routing for data centers are disclosed herein. In some embodiments, a method may include identifying a plurality of available source sites and paths or routes between an online service provider (OSP) and a destination prefix. A traffic manager may measure a cost for each of the plurality of available paths. In some instances, the traffic manager may also measure a performance value for each of the available paths. The traffic manager may then select one of the available source sites and paths as a preferred source site and path that has a minimized cost for an instance of the performance value when compared to other paths of the plurality of available source sites and paths. In further embodiments, the traffic manager may rewrite a routing table and DNS mapping to implement the preferred source site and path as the default source site and path between the OSP and the destination prefix. | 02-10-2011 |
20110054878 | AUTOMATED PERFORMANCE PREDICTION FOR CLOUD SERVICES - Embodiments of automated cloud service performance prediction are disclosed. The automated cloud service performance prediction includes extracting a parental dependency graph (PDG) for a webpage. The PDG encapsulates one or more dependency relationships for each web object in the webpage. The prediction further includes determining an original page load time (PLT) and original timing information of a webpage. The prediction also includes simulating a page loading of the webpage based on adjusted timing information of each web object and the PDG to estimate a new PLT of the webpage. The prediction additionally includes comparing the original PLT of the webpage to the new PLT of the webpage to determine whether the adjusted timing information increased or decreased the new PLT of the webpage. | 03-03-2011 |
20110283017 | Interconnecting Members of a Virtual Network - Computerized methods, systems, and computer-readable media are provided for establishing and managing a virtual network (V-net) and virtual machine (VM) switches that enable protected and isolated interconnections between members of the V-net. The V-net members include an originating network adapter that generates data packets addressed to a destination network adapter. Upon detecting data-packet generation, a source-side VM switch accesses a forwarding table associated with the V-net, ascertains a destination-side, VM-switch locator that corresponds to an identifier of the destination network adapter, and modifies the data packets to include the identifier. The forwarding table represents a mapping between the members of the V-net and VM switches located on respective nodes within the data center. In operation, the mapping enforces communication policies that govern data-packet traffic. Upon receiving the data packets, the destination-side VM switch restores the data packets and forwards them to the destination network adapter. | 11-17-2011 |
20120016866 | SCALED MANAGEMENT SYSTEM - An exemplary system for managing an applications and data space includes a strategy layer configured to receive a query statement and to formulate one or more custom queries based on the query statement and a query scheduler layer configured to schedule issuance of the one or more custom queries to one or more query response modules associated with the applications and data space. Other methods, devices and systems are also disclosed. | 01-19-2012 |
20120030338 | WEB PAGE LOAD TIME PREDICTION AND SIMULATION - Embodiments of automated cloud service performance prediction are disclosed. The automated cloud service performance prediction includes extracting a parental dependency graph (PDG) for a webpage. The PDG encapsulates one or more dependency relationships for each web object in the webpage. The prediction further includes determining an original page load time (PLT) and original timing information of a webpage. The prediction also includes simulating a page loading of the webpage based on adjusted timing information of each web object and the PDG to estimate a new PLT of the webpage. The prediction additionally includes comparing the original PLT of the webpage to the new PLT of the webpage to determine whether the adjusted timing information increased or decreased the new PLT of the webpage. | 02-02-2012 |
20120167101 | SYSTEM AND METHOD FOR PROACTIVE TASK SCHEDULING - The described implementations relate to distributed computing. One implementation provides a system that can include an outlier detection component that is configured to identify an outlier task from a plurality of tasks based on runtimes of the plurality of tasks. The system can also include a cause evaluation component that is configured to evaluate a cause of the outlier task. For example, the cause of the outlier task can be an amount of data processed by the outlier task, contention for resources used to execute the outlier task, or a communication link with congested bandwidth that is used by the outlier task to input or output data. The system can also include one or more processing devices configured to execute one or more of the components. | 06-28-2012 |
20130003538 | PERFORMANCE ISOLATION FOR CLOUDS - Traffic in a cloud is controlled by the nodes participating in the cloud. Tenants of the cloud each have a ratio. On any given node, a current transmission rate of the node is allocated among the tenants of the node, or more specifically, their execution units (e.g., virtual machines) on the node. Thus each tenant receives a predefined portion of the transmission capacity of the node. The transmission capacity can vary as conditions on the network change. For example, if congestion occurs, the transmission capacity may be decreased. Nonetheless, each tenant receives, according to its ratio, a same relative portion of the overall transmission capacity. | 01-03-2013 |
20130097313 | WEB PAGE LOAD TIME PREDICTION AND SIMULATION - Embodiments of automated cloud service performance prediction are disclosed. The automated cloud service performance prediction includes extracting one or more dependency relationships for each web object in the webpage. The prediction further includes determining an original performance metric value and original timing information associated with a page loading of a webpage. The prediction also includes simulating a page loading of the webpage based on the adjusted timing information and the dependency relationships to estimate a new performance metric value associated with the simulated page loading of the webpage. The prediction additionally includes comparing the original performance metric value to the new performance metric value to determine whether the adjusted timing information increased or decreased the new performance metric value relative to the original performance metric value. | 04-18-2013 |
20130215738 | Reliability as an Interdomain Service - A system and techniques are disclosed that increase the redundancy (i.e., physical diversity and bandwidth) available to an IP network, thereby increasing the failure processing capability of IP networks. The techniques include pooling the resources of multiple networks together for mutual backup purposes to improve network reliability and employing methods to efficiently utilize both the intradomain and the interdomain redundancies provided by networks at low cost. | 08-22-2013 |
20130339505 | MULTI-TENANT MIDDLEWARE CLOUD SERVICE TECHNOLOGY - A system that includes multiple hosts, each running a plurality of virtual machines. The system may be, for example, a cloud computing environment in which there are services and a service coordination system that communicates with the hosts and with the services. The services include a middleware management service that is configured to maintain per-tenant middleware policy for each of multiple tenants. The middleware management service causes the middleware policy to be applied to network traffic by directing network traffic to a middleware enforcement mechanism. This middleware policy is per-tenant in that it depends on an identity of a tenant. | 12-19-2013 |
20140304387 | MULTI-TENANT MIDDLEWARE CLOUD SERVICE TECHNOLOGY - A system that includes multiple hosts, each running a plurality of virtual machines. The system may be, for example, a cloud computing environment in which there are services and a service coordination system that communicates with the hosts and with the services. The services include a middleware management service that is configured to maintain per-tenant middleware policy for each of multiple tenants. The middleware management service causes the middleware policy to be applied to network traffic by directing network traffic to a middleware enforcement mechanism. This middleware policy is per-tenant in that it depends on an identity of a tenant. | 10-09-2014 |