363 results about "Routing decision" patented technology

A routing method operative in a content delivery network (CDN) where the CDN includes a request routing mechanism for routing clients to subsets of edge servers within the CDN. According to the routing method, TCP connection data statistics are collected are edge servers located within a CDN region. The TCP connection data statistics are collected as connections are established between requesting clients and the CDN region and requests are serviced by those edge servers. Periodically, e.g., daily, the connection data statistics are provdied from the edge servers in a region back to the request routing mechanism. The TCP connection data statistics are then used by the request routing mechanism in subsequent routing decisions and, in particular, in the map generation processes. Thus, for example, the TCP connection data may be used to determine whether a given quality of service is being obtained by routing requesting clients to the CDN region. If not, the request routing mechanism generates a map that directs requesting clients away from the CDN region for a given time period or until the quality of service improves.

A method of routing data to a load-balanced server through a network having one or more load-balancing nodes is disclosed. The first packet of a client request is received at one of the load-balancing nodes, which stores information identifying a flow associated with the packet and an incoming interface identifier. The node then makes a server load-balancing decision and stores an outgoing interface identifier. When the packet reaches the last load-balancing node before the selected server, that last node also requests an MPLS label to uniquely identify the flow, connection and route. The label is stored in a mapping at the last node that associates the label with the flow and interface identifying information. The packet is routed to the selected server. The first server response packet is switched hop-by-hop and the MPLS label is stored at each node traversed by the response packets, in association with a flow identifier and incoming and outgoing interface identifiers. For all other packets in the request and response, nodes fast-switch the packets based on the label mappings. As a result, packet flows are rapidly routed from the same client to the same server without time-consuming hop-by-hop routing decisions or repeated load-balancing decisions.

Packet routing via payload inspection at routers in a core of a distributed network. Packets include subjects and attributes in addition to routing information. The subjects correspond with particular types of content for subscriptions, and the attributes encapsulate the data or content. The routers store filters corresponding with subscriptions to content. Upon receiving a packet, a router inspects the payload section of the packet containing the attributes in order to retrieve the attributes and apply them to the filters for the subscriptions. If an attribute satisfies a filter, the packet is routed to the next link. If the attributes do not satisfy the filters, the router discards the packet. These routing decisions are distributed among routers in the network core. The router locally caches the data in the network core.

Certain exemplary embodiments comprise a method comprising a plurality of activities, comprising: for each of the plurality of routing entities in an AS: obtaining IGP topology information; learning available BGP routes associated with the routing entity; utilizing the available BGP routes and the IGP topology information for all routing entities in the AS, assigning the routing entity a customized routing decision comprising a BGP route; and sending the customized routing decision to the routing entity.

A method of routing data from a client through one or more load-balancing nodes to a selected load-balanced server among a plurality of servers in a network involves: receiving, at a last load balancing node associated with a selected server among the plurality of servers, a first packet of a server reply to a request from the client; setting a first flag value in the first packet of the server reply; storing one or more identifiers of ingress interfaces on which the packet arrives, in a send path list for server load balancing, as the first packet of the server reply is routed from the last load balancing node to the client using hop-by-hop decisions; receiving one or more subsequent packets of the client request; setting a second flag value in each of the subsequent packets; and forwarding the subsequent packets to the selected server only on a route that is defined by the send path list and without hop-by-hop routing decisions. As a result, packet flows are rapidly routed from the same client to the same server without time-consuming hop-by-hop routing decisions or repeated load-balancing decisions.

Distributed computing environment (DCE) remote procedure calls (RPCs) are integrated with an advisory work load manager (WLM) to provide a way to intelligently dispatch RPC requests among the available application server processes. The routing decisions are made dynamically (for each RPC) based on interactions between the location broker and an advisory work load manager. Furthermore, when the system contains multiple coupled processors (tightly coupled within a single frame, or loosely coupled within a computing complex, a local area network (LAN) configuration, a distributed computing environment (DCE) cell, etc.), the invention extends to balance the processing of RPC requests and the associated client sessions across the coupled systems. Once a session is assigned to a given process, the invention also supports performance monitoring and reporting, dynamic system resource allocation for the RPC requests, and potentially any other benefits that may be available through the specific work load manager (WLM).

Embodiments of the present invention disclose a method for routing control applied to a communication system including a CS domain and an IMS and in which a Routing Policy Decision-making Point (RPDP) is set; and the method includes: initiating a routing query to the RPDP by an interrogation network unit in the communication system upon receiving a service request; making a routing decision by the RPDP according to routing decision-making related information and the routing policy information, returning the routing decision to the interrogation networking unit by the RPDP; and performing subsequent routing control by the interrogation network unit according to the routing decision. Embodiments of the present invention also disclose a system for routing control. In accordance with the embodiments of the present invention, across-domain routing control is thus realized in different network application environments according to different demands.

Network System and Method for facilitating message exchange between mobile subscribers belonging to the same or different public land mobile networks, possibly incorporating different standards. Message exchange between two subscribers of the same or different networks may involve one or more lookups on subscription data, zero or more message transformations, one or more routing decisions including application of costing functions, and, storage and propagation of the message in one or more Core or Intermediary networks. The messages may be of type, among others, SMS (Short Message Service), MMS (Multimedia Message Service), or EMAIL.

Service Capability Interaction Manager (SCIM)-type functionality is provided at a horizontal service layer in an Service Oriented Architecture (SOA)-based approach. SCIM composition is provided at multiple levels, including the level of composition where servlets have full access to the context information of the service layer. SCIM composition also occurs at the level of an application dispatching messages to multiple applications/services for processing the messages. The functionality at the service layer also can be programmed using policies, such that routing decisions can be made dynamically as the result of processing conditions and actions. An incoming message can result in a Web service being triggered that in turn triggers a BPEL or SOA workflow, the workflow calling multiple operations to process the message as a result of a routing table or header, environmental and contextual information at the service level, and other information such as user preference or presence information.

A method and system for communicating information includes evaluation regarding routing of calls performed at a call control point in an ITSP and/or wireless network. A PIC identity associated with another party's preferences is acquired and sent to the call control point. The PIC identity identifies the type of the carrier network (e.g., circuit switched or VoIP) and is used to make further routing decisions. If a circuit-switched carrier is identified, the IP homing leg is terminated at the voice gateway in the recipient's HPLMN and information is sent over to the GMSC where normal, circuit-switched routing procedures. If a VoIP carrier is identified then the called user's roaming number is retrieved from the HLR, and the call is further routed directly over the IP domain towards a voice gateway at the visited network minimizing the number of transcodings. Additional transcoding steps can be avoided if a single encoding is agreed upon according to “tandem free operation” (TFO). Combining inband signaling through the telephony exchanges and out-of-band signaling in the IP network it is possible to achieve, for a mobile subscriber, one encoding and one decoding of a voice.

A packet is routed by "dead reckoning" on a network having a generally regular topology. The packet is received at a node where a local routing decision is made. The packet is output in a direction selected according to the routing decision. The packet carries in addition to a destination address a directional flag indicating explicitly the preferred direction of onward travel and the routing decision is made using this flag. Several flags may be used, corresponding to different dimensions of the network.

A navigation system and method factors into its routing decisions information pertaining to transient delays encountered from time to time, one example of such a transient delay is accident information obtained from currently available broadcast traffic flow sources. The system can also factor in historically available traffic delay data based on time of day or other parameters. The navigation system keeps track of the routes traveled by the vehicle (or user) and the times of transit of such routes. When a user requests a route based upon given end-points, the navigation system can use its own stored historical data, as well as currently available traffic delay data, to calculate and announce a given route.

In a method and system for creating a federation of a plurality of enterprise service buses (ESBs), a plurality of ESB nodes provide connectivity to one or more services. According to a protocol, at least a portion of the ESB nodes transmit policy-based service advertisement messages to other ESB nodes, wherein the policy-based service advertisement messages include service state information. In response to receiving the policy-based service advertisement messages, each of the ESB nodes stores the service state information received from other ESB nodes in respective distributed registries to create a local view of routable service endpoints in the federation. Each of the ESB nodes then uses its respective distributed registry to make routing decisions when routing service requests.

A method for the routing of information in a network comprises several communication nodes that may be mobile, the routing being done by a route between a source node and a destination node through a set of wireless communication links between the nodes of the network, the entire set forming a graph wherein the method comprises at least one step in which the graph of the network is structured as a unicast two-way link in order to obtain the relationships existing between two nodes and form, during routing decisions, sub-graphs comprising arcs that connect two nodes, the arcs sharing one and the same set of properties.

Methods and systems for utilizing authentication attributes to determine how to direct traffic flows are provided. In one embodiment, an augmented authentication database is provided, which includes routing information for multiple users. The routing information is intended to be used to facilitate routing of traffic flows to appropriate virtual networks of a network. A request on behalf of one of the users is received at an authentication interface of the network for access to a service provided by a first virtual network. Responsive to the request, login credentials of the user are authenticated against the augmented authentication database. Responsive to successful authentication, the authentication interface receives from the augmented authentication database routing information associated with the user and causes the user to be granted access to the service by causing traffic flow associated with the user to be routed to the first virtual network based on the routing information returned.

A method and apparatus are described including collecting network information, determining an association, bandwidth allocation and routing scheme based on the collected network information, notifying a mesh access point of the association, the bandwidth allocation and the routing scheme and notifying a client node of its association information. Also described are a method and apparatus including measuring link quality and channel conditions, reporting results of the measuring act to a controller, receiving a routing decision and data forwarding instructions from the controller and forwarding the routing decision and the data forwarding instructions to a client node. Further described are a method and apparatus including measuring link quality and channel conditions, reporting results of the measuring act to a controller, receiving association instructions from the centralized controller and updating previously stored association instructions with the received association instructions.

A method comprising computer receiving at least one of time and location-referenced state data for an object of interest, determining present location of a vehicle within two presently overlapping fat paths, fat paths comprising homotopically distinct regions of travel, determining distance of vehicle from a point of divergence of fat paths, fat paths diverging to avoid object, the computer generating a decision boundary reachable prior in time to point of divergence wherein decision boundary is in advance of the present location of vehicle, computer generating a first second set of feasible headings for the vehicle, the first and second set respectively associated with a projected first and second crossing points of the decision boundary by vehicle wherein feasible headings promote positioning of vehicle in one of fat paths beyond point of divergence, and computer sending first and second sets of feasible headings to vehicle prior to vehicle reaching decision boundary.

A method and apparatus for switching a data packet between a source and destination in a network. The data packet includes a header portion and a data portion. The header portion includes routing information for the data packet. The method includes defining a data path in the router comprising a path through the router along which the data portion of the data packet travels and defining a control path comprising a path through the router along which routing information from the header portion travels. The method includes separating the data path and control path in the router such that the routing information can be separated from the data portion allowing for the separate processing of each in the router. The data portion can be stored in a global memory while routing decisions are made on the routing information in the control path.

A method of domain selection for routing control, applied to a communication system including a Circuit Switched (CS) network and an IP Multimedia Subsystem (IMS) includes: obtaining call status(es) of a user in any one or both of the CS network and the IMS; selecting a domain via which an incoming call is to be delivered according to the call status(es) upon receiving a routing decision query request from a routing decision query entity, and indicating the routing decision query entity to deliver the incoming call via the CS network or the IMS selected. The method provided by embodiments of the present invention selects the domain according to the call status(es) of the user in any one or both of the CS network and the IMS. Therefore, the problem that two calls are respectively delivered via the CS network and the IMS at the same time may be avoided.