Abstract: Techniques are provided to facilitate faster live migration of a virtual server from one physical server to another physical server by pausing TO activity of the virtual server and slowing memory state changes for CPU-bound activity of the virtual server during the live migration.

Abstract: A data processing apparatus comprises instructions to perform sending and receiving one or more messages conforming to a network routing protocol, such as Open Shortest Path First (OSPF); obtaining one or more information elements that specify one or more capabilities of the apparatus; creating a particular routing protocol message comprising an opaque advertisement that includes the one or more information elements; and sending the particular message on one of the network interfaces. For example, a router or switch that implements a network routing protocol can use OSPF Opaque Link State Advertisements to advertise and discover services and capabilities of other routers or switches.

Abstract: Methods and apparatus for performing proxy registration on behalf of a node with a Home Agent supporting Mobile IP are disclosed. A first registration request is composed on behalf of the node and transmitted to the Home Agent via a first Local Mobility Anchor, wherein the first Local Mobility Anchor is a regional controller via which registration is performed when the node moves within a region associated with the first Local Mobility Anchor. When the node moves within a region or between regions, the node is re-registered. Specifically, a second registration request is composed and transmitted to the first Local Mobility Anchor when the node moves within the region associated with the first Local Mobility Anchor.

Abstract: Methods and apparatus for performing proxy registration on behalf of a node with a Home Agent supporting Mobile IP are disclosed. A first registration request is composed on behalf of the node and transmitted to the Home Agent via a first Local Mobility Anchor, wherein the first Local Mobility Anchor is a regional controller via which registration is performed when the node moves within a region associated with the first Local Mobility Anchor. When the node moves within a region or between regions, the node is re-registered. Specifically, a second registration request is composed and transmitted to the first Local Mobility Anchor when the node moves within the region associated with the first Local Mobility Anchor.

Abstract: Network elements provide application-level QoS for application-layer messages processed therein. An application based message is examined upon IP reassembly thereof. Information is accessed about a sender of the message. A credential is assigned to the sender based on the sender information and/or a status validated for a device that sends said message. The message is dynamically prioritized in relation to other network traffic to provide application QoS based on the sender credential and/or the device status. The message priority is changeable on the fly according to the dynamically variable information. Sender information relates to a role or authority level associated therewith and is dynamically variable with respect to time, situation and/or circumstance. Thus, OSI Layer 5, 6, or 7 application message role/status based attributes determine how packets are marked with Layer 2, 3 or 4 QoS values, integrating application-level concepts of order and priority into network-layer QoS mechanisms.

Abstract: The invention relates to newly identified pentamine based surfactant compounds, to the use of such compounds and their production. The invention also relates to the use of the pentamine based compounds to facilitate the transfer of polynucleotides into cells.

Abstract: This invention relates to newly identified spermidine based surfactant compounds, to the use of such compounds and to their production. The invention also relates to the use of the spermidine based compounds to facilitate the transfer of polynucleotides into cells.

Abstract: Methods and apparatus for dynamically generating authentication keys are disclosed. Specifically, a Mobile-Foreign authentication key is separately generated by both the Mobile Node and Foreign Agent. Similarly, a Foreign-Home authentication key is separately generated by the Foreign Agent and the Home Agent. In accordance with one embodiment, generation of the Mobile-Foreign authentication key and Foreign-Home authentication key are accomplished via the Diffie-Hellman key generation scheme.

Abstract: The present invention provides methods and apparatus for managing an IP address assigned to a Mobile Node. In one embodiment, the Mobile Node appends an extension to the registration request that is sent to its Home Agent, which indicates that the Mobile Node requests use of the IP address previously assigned to the Mobile Node for an additional period of time. When the Home Agent receives the registration request, it indicates whether a lease on the IP address previously assigned to the Mobile Node has been granted by the Home Agent for an additional period of time. In another embodiment, the Home Agent sends a first control message to determine whether the Mobile Node continues to use the IP address. The Home Agent then determines whether a second control message has been received in order to ascertain whether the Mobile Node continues to use the IP address previously assigned to the Mobile Node.

Abstract: Methods and apparatus for dynamically generating authentication keys are disclosed. Specifically, a Mobile-Foreign authentication key is separately generated by both the Mobile Node and Foreign Agent. Similarly, a Foreign-Home authentication key is separately generated by the Foreign Agent and the Home Agent. In accordance with one embodiment, generation of the Mobile-Foreign authentication key and Foreign-Home authentication key are accomplished via the Diffie-Hellman key generation scheme.

Abstract: The embodiments described herein provide a method for operating a video signal network.

Abstract: Methods and apparatus for optimizing Mobile VPN communications are disclosed. When a data packet is transmitted between a Mobile Node that is a member of a VPN and a Correspondent Node, the data packet is transmitted between the Mobile Node and a Home Agent via a Mobile IP tunnel without transmitting the data packet via a VPN tunnel. However, the data packet is transmitted between the Home Agent and a VPN headend via a VPN tunnel.

Abstract: Methods and apparatus for optimizing NAT traversal in Mobile IP are disclosed. Various mechanisms may performed independently or in combination with one another. A first mechanism enables one-way keep alive messaging to the Home Agent, while a second mechanism enables two-way keep alive messaging to the Home Agent, thereby enabling an entry in a NAT translation table to be maintained. The two-way keep alive messaging requires that the Home Agent send an acknowledgement message, while the one-way keep alive messaging does not. Keep alive messaging may be performed at the Mobile Node or the Foreign Agent. A third mechanism enables a Foreign Agent to encapsulate a registration request packet with the Foreign Agent care-of address in the source IP address field rather than an egress interface of the Foreign Agent. A fourth mechanism enables a Mobile Node to force a Home Agent to perform UDP tunneling.

Abstract: In one embodiment, an apparatus comprises logic encoded in one or more tangible media for enhancing transmission reliability of monitored data. The logic is operable to receive a plurality of segments for transmission over a TCP connection to a network node, where the TCP connection is associated with a transmit queue and a retransmit queue. The logic is also operable to detect a transmission anomaly on the TCP connection to the network node, and in response to detecting the transmission anomaly, is operable to perform any one of: store segments into a persistent buffer prior to transferring the segments into the transmit queue; copy segments from the retransmit queue into the persistent buffer, where the segments have been transmitted but not yet acknowledged by the network node; and copy segments from the transmit queue into the persistent buffer, where the segments have not yet been transmitted to the network node.

Abstract: In accordance with one aspect of the invention, methods and apparatus for distributing a Mobile IP registration request to one of a plurality of Home Agents are disclosed. A registration request is received from a Foreign Agent to which the Mobile Node has roamed. One of the plurality of Home Agents is selected. The registration request is then forwarded to the selected one of the plurality of Home Agents. The source IP address of the registration request is an IP address of the Foreign Agent to which the Mobile Node has roamed, thereby enabling the selected one of the plurality of Home Agents to send a Mobile IP registration reply directly to the Foreign Agent without interception by the network device.

Abstract: This invention relates to newly identified spermidine based surfactant compounds, to the use of such compounds and to their production. The invention also relates to the use of the spermidine based compounds to facilitate the transfer of polynucleotides into cells.

Abstract: This invention relates to newly identified ester-linked gemini surfactant compounds, to the use of such compounds and to their production. The invention also relates to the use of the ester-linked gemini surfactant compounds to facilitate the transfer of polynucleotides into cells.

Abstract: This invention relates to newly identified pentamine based surfactant compounds, to the use of such compounds and to their production. The invention also relates to the use of the pentamine based compounds to facilitate the transfer of polynucleotides into cells.

Abstract: Methods and apparatus for supporting a session in Mobile IP are disclosed. A Mobile Node sends a first Mobile IP message identifying the Mobile Node to a Home Agent, wherein the first Mobile IP message indicates to the Home Agent that the Mobile Node is requesting dynamic configuration of a Mobile-Home authentication key to be shared between the Mobile Node and the Home Agent during the session. A Mobile-Home authentication key to be shared between the Home Agent and the Mobile Node is obtained or generated by the Mobile Node and the Home Agent, where the Mobile-Home authentication key is not valid after the session has ended or during another session.

Abstract: In one embodiment, a system receives a user calling attribute and determines current information of a telephone. The system generates a dynamic contact list based on the user calling attribute and the current information.