364 results about "Routing decision" patented technology

A router for routing data from a client through 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; storing 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 subsequent packets of the client request; 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. Packet flows are routed from the same client to the same server without hop-by-hop routing decisions or repeated load-balancing decisions.

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.

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.

A method of routing data from a client through one or more load-balancing routers to a selected load-balanced server among a plurality of servers in a network involves: receiving, at a load balancing node in a path from the client to the plurality of servers, a first packet of a request from a client; creating and storing a mapping of flow identifying information, associated with the first packet, to a client stickiness identifier; pushing the client stickiness label into a sending path list that is stored in association with the first packet; storing the client stickiness label in a mapping of client stickiness labels to server identifiers at a last load balancing node associated with the plurality of servers, wherein the mapping associates the client stickiness label with a server identifier that uniquely identifies a selected server that has been selected from among the plurality of servers to receive the client request; and forwarding all subsequent packets associated with the client request to the same selected server based on looking up the client stickiness label of such subsequent packets in the mapping. 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.

The invention relates to data networks, to nodes making up parts of data networks, and to information relating to the characterisation of paths taken by data travelling between nodes in the networks. Path characterisation information is arranged to be conveyed to nodes such that it may be used by nodes subsequently forwarding data. In particular the invention relates to nodes receiving such path characterisation information from upstream nodes, deriving therefrom information indicative of characteristics of a path downstream of said nodes, and using such information to make informed decisions such as routing decisions when forwarding data onward in data networks.

Methods and systems for utilizing authentication attributes to determine how to direct traffic flows are provided. According to one embodiment, a program storage device readable by a network device associated with a service provider is provided. The program storage device tangibly embodies a program of instructions executable by a processor of the network device to perform method steps for authenticating users and establishing appropriate service sessions. An end user from whom a connection request is received is caused to be prompted for login credentials. The received login credentials are then caused to be authenticated by an authentication server. Responsive to successful authentication, a service session is established for the end user and customer separation is maintained among the multiple customers by creating a routing entry, according to which subsequent packets associated with the service session are routed, based on authentication attributes returned by the authentication server.