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1. 发明申请

WO2017209944A1 SESSION CONTINUITY IN THE PRESENCE OF NETWORK ADDRESS TRANSLATION 审中-公开
标题翻译：会话连续性在网络地址转换中的应用
公开(公告)号：WO2017209944A1
公开(公告)日：2017-12-07
申请号：PCT/US2017/032907
申请日：2017-05-16
申请人： 128 TECHNOLOGY, INC.
发明人： MENON, Abilash , YUNGELSON, Anna , MCCULLEY, Scott, A. , PENFIELD, Robert , MENDEZ CIRERA, Francisco, J. , SULLIVAN, Thomas, E.
IPC分类号： H04L12/741 , H04L1/00
CPC分类号： H04L45/38 , H04L61/2514 , H04L67/142
摘要： Embodiments of the present invention provide for continuity of "stateful" routing sessions in the presence of source network address translation (NAT). Specifically, a stateful routing session may be moved from one routing path to another routing path, e.g., due to a routing change in the communication network, where the routing paths have different source NAT status. For example, the stateful routing session may be moved from a path having no source NAT to a path having source NAT, from a path having source NAT to a path having no source NAT, or from paths having different source network address translations. When a stateful routing session is moved from an existing routing path to a new routing path, the routers detect the routing change based on the change in source NAT status using a special link monitoring protocol. Upon detecting the change in source NAT status, session metadata is included in at least the first packet forwarded following detection of the change in source NAT status so that the stateful routing session can continue without interruption.
摘要翻译：本发明的实施例提供了“有状态”的连续性，在存在源网络地址转换（NAT）的情况下路由会话。具体而言，例如，由于通信网络中的路由改变，路由路径具有不同的源NAT状态，有状态路由会话可从一个路由路径移动到另一路由路径。例如，有状态路由会话可以从不具有源NAT的路径移动到具有源NAT的路径，从具有源NAT的路径移动到不具有源NAT的路径，或者从具有不同源网络地址翻译的路径移动。当有状态路由会话从现有路由路径移动到新路由路径时，路由器将使用特殊链路监视协议基于源NAT状态更改检测路由更改。在检测到源NAT状态的变化后，会话元数据至少包括在检测到源NAT状态变化之后转发的第一个分组，使得有状态路由会话可以继续而不中断。

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