Abstract: In a routing table of a first system, a routing table entry for a first application is created by a controller application executing in a controller system, the first application intended for relocation, a second application in the set of applications not intended for relocation. At the second system responsive to commencing execution of the first application in the second system at a second time, a mapping entry is created by a controller application, the mapping entry causing the forwarded packet to be delivered to the first application at the second system. Responsive to a notification that the first application is executing in the second system, the routing table entry of the first system is modified by the controller application, the modified entry causing a packet addressed to the first application to be forwarded from the first system to the second system.

Abstract: In a routing table of a first system, a routing table entry for a first application is created by a controller application executing in a controller system, the first application intended for relocation, a second application in the set of applications not intended for relocation. At the second system responsive to commencing execution of the first application in the second system at a second time, a mapping entry is created by a controller application, the mapping entry causing the forwarded packet to be delivered to the first application at the second system. Responsive to a notification that the first application is executing in the second system, the routing table entry of the first system is modified by the controller application, the modified entry causing a packet addressed to the first application to be forwarded from the first system to the second system.

Abstract: In a routing table of a first system, a routing table entry for a first application is created by a controller application executing in a controller system, the first application intended for relocation, a second application in the set of applications not intended for relocation. At the second system responsive to commencing execution of the first application in the second system at a second time, a mapping entry is created by a controller application, the mapping entry causing the forwarded packet to be delivered to the first application at the second system. Responsive to a notification that the first application is executing in the second system, the routing table entry of the first system is modified by the controller application, the modified entry causing a packet addressed to the first application to be forwarded from the first system to the second system.

Abstract: In a routing table of a first system, a routing table entry for a first application is created by a controller application executing in a controller system, the first application intended for relocation, a second application in the set of applications not intended for relocation. At the second system responsive to commencing execution of the first application in the second system at a second time, a mapping entry is created by a controller application, the mapping entry causing the forwarded packet to be delivered to the first application at the second system. Responsive to a notification that the first application is executing in the second system, the routing table entry of the first system is modified by the controller application, the modified entry causing a packet addressed to the first application to be forwarded from the first system to the second system.

Abstract: The present disclosure relates to maintaining network services during kernel update operations. According to one embodiment, a server generates a second computing system executing a second system kernel. The second system kernel is updated in relation to a first system kernel executing on a first computing system. The server pauses network services operating on the first computing system. The server generates a snapshot of the network services operating on the first computing system. While the network services are paused on the first computing system, the server caches data packets received from client devices and destined for network services operating on the first system, migrates the network services to the second computing system, and restores the network service snapshot to the second computing system. Upon completing the migration, the server sends the cached data packets to the one or more network services operating on the second computing system.

Abstract: The present disclosure relates to maintaining network services during kernel update operations. According to one embodiment, a server generates a second computing system executing a second system kernel. The second system kernel is updated in relation to a first system kernel executing on a first computing system. The server pauses network services operating on the first computing system. The server generates a snapshot of the network services operating on the first computing system. While the network services are paused on the first computing system, the server caches data packets received from client devices and destined for network services operating on the first system, migrates the network services to the second computing system, and restores the network service snapshot to the second computing system. Upon completing the migration, the server sends the cached data packets to the one or more network services operating on the second computing system.

Abstract: A method in a data processing system for routing a packet to a target data processing system. With the method and apparatus, a global address for the target data processing system is placed in the packet. A hop-by-hop option may then be set in the packet, which contains a media access control address for the final destination. This option causes a router for a subnet on which the target data processing system is located to send the packet to the target data processing system using the media access control address without performing a link level address discovery operation.

Abstract: A method in a data processing system for routing a packet to a target data processing system. With the method and apparatus, a global address for the target data processing system is placed in the packet. A hop-by-hop option may then be set in the packet, which contains a media access control address for the final destination. This option causes a router for a subnet on which the target data processing system is located to send the packet to the target data processing system using the media access control address without performing a link level address discovery operation.