公开(公告)号：US09379982B1

公开(公告)日：2016-06-28

申请号：US14042676

申请日：2013-09-30

Applicant: Juniper Networks, Inc.

Inventor： Gopi Krishna ,  Suresh Kumar Vinapamula Venkata ,  Shauli Gal ,  Li Fang ,  Harsha Srinath ,  Sanjay Agrawal ,  Jwala Dinesh Gupta Chakka

IPC: H04L12/803

CPC classification number: H04L47/125 ,  H04L67/1023 ,  H04L67/1034

Abstract: In general, techniques are described for load balancing, with a service node, packet flows using stateless load balancing that adapts to server failure to provide flow affinity to initially selected servers for the duration of respective flows. In one example, service node device applies stateless load balancing to packet flows to distribute the flows among a plurality of servers. The service node determines a failure of a failed server and then receives an initial packet of a packet flow from the packet flows and forwards the initial packet to an active server. The service node generates a mapping of the packet flow to the active server, determines a recovery of the failed server, receives a subsequent packet of the packet flow, and forwards the subsequent packet of the packet flow to the active server based at least on the mapping of the packet flow to the active server.

Abstract translation: 一般来说，描述了用于负载平衡的技术，其中使用服务节点，使用无状态负载平衡的分组流适应于服务器故障，以在相应流程的持续时间内为初始选择的服务器提供流量亲和度。 在一个示例中，服务节点设备向分组流应用无状态负载均衡以在多个服务器之间分配流。 服务节点确定故障服务器的故障，然后从分组流中接收分组流的初始分组，并将初始分组转发到活动服务器。 服务节点生成分组流到活动服务器的映射，确定故障服务器的恢复，接收分组流的后续分组，并且至少基于所述分组流将后续分组流转发到活动服务器 将数据包流映射到活动服务器。