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    Seamless Reconfiguration of Distributed Stateful Network Functions
    2.
    发明公开
    Seamless Reconfiguration of Distributed Stateful Network Functions 审中-公开

    公开(公告)号：US20230208908A1

    公开(公告)日：2023-06-29

    申请号：US18117683

    申请日：2023-03-06

    Applicant: AT&T Intellectual Property I, L.P.

    Inventor： Abhigyan ,  Kaustubh Joshi ,  Edward Scott Daniels

    IPC: H04L67/1029 ,  H04L67/1038 ,  H04L67/1031

    CPC classification number: H04L67/1029 ,  H04L67/1038 ,  H04L67/1031

    Abstract: A system can include a gateway, a plurality of network function nodes, and a distributed load balancer including load balancer nodes each having a flow table portion stored thereon. The load balancer nodes can form a node chain having a tail and head nodes. A load balancer node can receive a packet from the gateway. In response, the load balancer node can generate a query, directed to the tail node, that identifies the packet and a network function identifier associated with a network function node that is proposed to handle a connection. The tail node can determine whether an entry for the connection exists in a flow table portion associated with the tail node. If not, the tail node can initiate an insert request for writing the entry for the connection via the head node. The entry can then be written to all load balancer nodes in the node chain.

    Load balancer bypass
    6.
    发明授权
    Load balancer bypass 有权

    公开(公告)号：US09826033B2

    公开(公告)日：2017-11-21

    申请号：US14972951

    申请日：2015-12-17

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Hemant Kumar ,  Parveen Kumar Patel ,  Deepak Bansal

    IPC: H04L29/08 ,  H04L12/54 ,  H04L29/12

    CPC classification number: H04L67/1038 ,  H04L12/56 ,  H04L61/2521 ,  H04L67/2814

    Abstract: Redirecting message flows to bypass load balancers. A destination intermediary receives a source-side message that includes a virtual address of a load balancer as a destination, and that is augmented to include a network address of a destination machine as a destination. The destination intermediary determines that a source intermediary should address subsequent network messages that originate from a source machine and that are associated with the same multi-message flow to the destination machine while bypassing the load balancer. The destination intermediary modifies the source-side message so the destination for the source-side message addresses the destination machine, and passes the modified source-side message to the destination machine. The destination intermediary receives a response from the destination machine identifying the source machine as its destination, and modifies the response so a source address identifies the virtual address of the load balancer, and dispatches the modified response to the source machine.

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