Abstract: A request is received by a first computer. The first computer delegates the first request to a second computer. The second computer attempts to process the first request and identifies an imminent fault as a result of the attempt. The second computer sends a message to the first computer indicating an imminent fault as a result of the attempted processing of the first request. The first computer sends a message to a third computer indicating that a second request matching the first request should not be processed.

Abstract: Efficient routing for a client-server session or connection is provided in an application layer of multi-layered systems interconnect stack by caching a plurality of application-specific information at an intermediary network point; using the application specific information to route messages for an application connection; and indexing the application-specific information with a key provided by the application. Optionally, a second key may be used to retrieve the application-specific information if the first key is not provided in an application connection request, where the second key is optionally opaque to the application program. The intermediary network point may be an edge of network Internet Protocol (IP) switch, and the application layer in which the routing is performed may be layer seven of the Open Systems Interconnection model.

Abstract: A router or router process directs computer network traffic by, upon receipt of an access request to a network resource, determining that the request contains at least one routing cookie; determining a cookie scope of the routing cookie; responsive to the cookie scope being unequivalent to a root value, designating the at least one routing cookie as a delegate cookie; adding a path value associated the delegate cookie to a session lookup table entry for a user associated with the network traffic; and subsequently, using the lookup table entry to determine a destination address for redirecting computer network traffic for the user having the delegate cookie to a delegated resource located in the network at the path.

Abstract: Efficient routing for a client-server session or connection is provided in an application layer of multi-layered systems interconnect stack by caching a plurality of application-specific information at an intermediary network point; using the application specific information to route messages for an application connection; and indexing the application-specific information with a key provided by the application. Optionally, a second key may be used to retrieve the application-specific information if the first key is not provided in an application connection request, where the second key is optionally opaque to the application program. The intermediary network point may be an edge of network Internet Protocol (IP) switch, and the application layer in which the routing is performed may be layer seven of the Open Systems Interconnection model.

Abstract: A method, computer program product, and system for routing computer network traffic include associating, on a routing device, a unique identifier with at least one application server running an application. Network traffic that includes the unique identifier and an intended network address may be received. In response to receiving the network traffic at least one of the application servers associated with the unique identifier may be identified. The network traffic may be forwarded to at least one of the application servers associated with the unique identifier.

Abstract: A router or router process directs computer network traffic by, upon receipt of an access request to a network resource, determining that the request contains at least one routing cookie; determining a cookie scope of the routing cookie; responsive to the cookie scope being unequivalent to a root value, designating the at least one routing cookie as a delegate cookie; adding a path value associated the delegate cookie to a session lookup table entry for a user associated with the network traffic; and subsequently, using the lookup table entry to determine a destination address for redirecting computer network traffic for the user having the delegate cookie to a delegated resource located in the network at the path.