Abstract:
In a first aspect of the present invention, a Wholesaler dynamically identifies one of a plurality of AAA services at a remote domain to route an access request to. The AAA service is selected based upon a set of rules applied to information which has been received dynamically from the plurality of AAA services and is indicative of load and status of the plurality of AAA services. In a second aspect of the present invention, a Wholesaler, based upon a Service Level Agreement (SLA) between the Wholesaler and a user, routes the user to one of a plurality of sub-service providers.
Abstract:
The present invention provides for multiplexing applications. In particular, an access receives a request from a user to access an application. Based on the received request, the access server establishes a communication link between the access server and the user. The access request is stored in an input request queue when an available communication path to the requested application is available. The communication path between the input request queue and the application is established, the stored request is removed and sent to the application.
Abstract:
An apparatus and method for dynamic resource mapping in a TCP/IP environment that includes a DRM server component, a client side DRM process for collecting machine specific performance characteristics, a client/server protocol to allow communication of machine specific process characteristics between the DRM server component and the client side DRM process and a DRM protocol to allow a client to request an application resource by name and the DRM server to return a selected address of a client, the selection made based upon collected machine specific performance characteristics of at least one client. Furthermore, the invention updates the DRM server to reflect the operability of the application and as a result does not return the address of the resource if it is inoperable.
Abstract:
A method and system for load balancing at a domain name server and Internet mail server for mail messages where the system is modified to direct mail via sequentially selected mail servers comprises a networked dynamic domain name server computer communicating with a plurality of email servers (SMTP listeners), POP servers and a plurality of email clients.
Abstract:
A computer network environment (10) allowing connection of a client system (36) to a legacy host system (18,19) using a server (26) is provided. The computer network environment (10) includes a legacy host system (18,19) having TCP/IP connectivity. The legacy host system (18,19) is operable to support a terminal session for access to the legacy host system (18,19). The computer network environment (10) also includes a server (26) operable to communicate with the legacy host system (18,19) across a persistent TCP/IP socket connection (30). The computer network environment (10) further includes a client system (36) executing an applet process (42) under a web browser (38). The applet process (42) is operable to communicate with the client thread (28) across another persistent TCP/IP socket connection (44) and is operable to provide a terminal session to a user of the client system (36). This terminal session is supported by a persistent connection allowing real-time bidirectional communication with the legacy host system (18,19), including response time monitoring, enabled by appropriate response time monitoring tool executing on host system 18 and appropriate protocol conversions at server (26).
Abstract:
A computer network environment (10) allowing connection of a client system (36) to a legacy host system (18,19) using a server (26) is provided. The computer network environment (10) includes a legacy host system (18,19) having TCP/IP connectivity. The legacy host system (18,19) is operable to support a terminal session for access to the legacy host system (18,19). The computer network environment (10) also includes a server (26) operable to communicate with the legacy host system (18,19) across a persistent TCP/IP socket connection (30). The computer network environment (10) further includes a client system (36) executing an applet process (42) under a web browser (38). The applet process (42) is operable to communicate with the client thread (28) across another persistent TCP/IP socket connection (44) and is operable to provide a terminal session to a user of the client system (36). This terminal session is supported by a persistent connection allowing real-time bidirectional communication with the legacy host system (18,19), including a direct interface to an AS/400 host.
Abstract:
Apparatus, and accompanying methods for use therein, for an ISDN LAN modem (300) (and various aspects thereof) that is particularly, though not exclusively, suited for small user environments and which contains an internal ISDN router (305) having a self-contained network hub (340) for inter-connecting multiple network devices, such as workstations (10), to each other through a local area network (LAN) and for permitting each of those devices to each gain access through the router to any one of a number of different remote networks. Advantageously, to facilitate and simplify its configuration, the LAN modem automatically adapts itself to a current network environment of a workstation connected thereto, via the LAN, and then communicates with that workstation through a browser executing thereat to obtain configuration information from a user situated at the workstation. Additionally, the LAN modem, through use of a multi-tiered routing hierarchy including both destination- and source-based routing, accommodates several modalities of network communication not heretofore possible in a conventional router. Specifically, several different workstations can simultaneously communicate through the LAN modem with a common remote network (60) and share a single user account at a corresponding network service provider.
Abstract:
Methods, systems and computer program products are provided which dynamically balance the load between gateways which provide access between a first computer network and a second computer network. This load balancing includes receiving at a gateway a communication to be transmitted to a second computer network from a source device on the first computer network. The gateway determines, preferably based on an address contained in the communication, through which of the gateways the communication is to be transmitted and then either transmits the communication to the second network or over the first network to the determined gateway. A redirect message may then be sent to the source device to direct subsequent messages to the proper gateway. The gateway determination may be made by dividing a resource identifier into subgroups, summing the subgroups and then dividing the sum by the number of parallel gateways. The remainder may then be used as a gateway identifier.
Abstract:
Some embodiments provide a novel method of performing health monitoring for resources associated with a global server load balancing (GSLB) system. This system is implemented by several domain name system (DNS) servers that perform DNS services for resources located at several geographically separate sites. The method identifies several different groupings of the resources. It then assigns the health monitoring of the different resource groups to different DNS servers. The method then configures each particular DNS server (1) to send health monitoring messages to the particular group of resources assigned to the particular DNS server, (2) to generate data by analyzing responses to the sent health monitoring messages, and (3) to distribute the generated data to the other DNS servers. The method in some embodiments is performed by a set of one or more controllers.
Abstract:
A system may include a processing device and a memory storing instructions that, when executed by the processing device, causes the processing device to obtain a health check instruction that is specific to a name of a service that is associated with one or more endpoints, including performing a lookup with the name to obtain the health check instruction that is specific to the name. The processing device performs the one or more actions of the health check instruction to determine a health status of the one or more endpoints, and stores the health status of the one or more endpoints. In response to receiving a request to resolve the name from a client, the processing device returns the one or more endpoints based at least on the health status of the one or more endpoints.