公开(公告)号：US20160248664A1

公开(公告)日：2016-08-25

申请号：US15025071

申请日：2013-10-11

Applicant: XIEON NETWORKS S.À.R.L.

Inventor： Kaiyuan HUANG

IPC: H04L12/703 ,  H04L12/717 ,  H04L12/721

CPC classification number: H04L45/28 ,  H04L45/42 ,  H04L45/44 ,  H04L45/62 ,  H04L45/64

Abstract: Disclosed herein is a method of establishing a path for data transport from a source network element (NE) to a destination NE in a communication network comprising a plurality of NEs and links between said NEs. The method comprises the steps of computing, at a central controller, a data path from said source NE to said destination NE along a number of intermediate NEs, sending, from said central controller, central control messages to all or at least a plurality of NEs among said source NE, said intermediate NEs and said destination NE, said central control messages including explicit path information, said explicit path information in at least some of the central control messages comprising more information than needed by the recipient NE for its set-up for data transport along said path, and sending distributed control messages between NEs of said path, said distributed control messages being based on at least one central control message received by one of said NEs. Said distributed control messages allow for distributing switch set-up information that was lost due to failure in the transfer of a central control message.

Abstract translation: 本文公开了一种在包括多个NE和所述NE之间的链路的通信网络中建立从源网元（NE）到目的地NE的数据传输路径的方法。 该方法包括以下步骤：在中央控制器处，沿着多个中间网元计算从所述源NE到所述目的地NE的数据路径，从所述中央控制器向所有或至少多个NE发送中央控制消息 在所述源NE中，所述中间网元和所述目的地网元，所述中央控制消息包括显式路径信息，所述中央控制消息中的至少一些中央控制消息中的所述显式路径信息包含比所述接收方NE为其建立所需的更多信息 沿着所述路径的数据传输，并且在所述路径的网元之间发送分布式控制消息，所述分布式控制消息基于由所述NE中的一个接收的至少一个中央控制消息。 所述分布式控制消息允许分配由于中央控制消息的传送中的故障而丢失的交换机建立信息。

公开(公告)号：US20170078190A1

公开(公告)日：2017-03-16

申请号：US15309133

申请日：2015-03-31

Applicant: Xieon Networks S.à.r.l.

Inventor： Kaiyuan HUANG

IPC: H04L12/707 ,  H04L12/725 ,  H04L12/721 ,  H04L12/727 ,  H04L12/26

CPC classification number: H04L45/22 ,  H04L43/0852 ,  H04L45/121 ,  H04L45/24 ,  H04L45/302 ,  H04L45/70

Abstract: The present invention relates to the field of re-routing packet data in a data communication network, where it is desired to maintain the original packet order at the receiver end without significantly increasing system complexity, processing latency or related costs. For this purpose, the present invention suggests a method of re-routing at least one data-stream and a network element for re-routing at least one data-stream. A first part and a second part of a data-stream received at a first node and are transmitted to a second node via two different network paths, respectively. The first part of the at least one data-stream is transmitted from the first node to the second node via a first network path. A second network path for transmitting the second part to the second node is determined, and the difference between latencies of the first and second network paths is also determined. If the latency of the first network path is larger than the latency of the second network path, the at least one data-stream at the first node is re-routed from the first network path to the second network path provided that the time gap between data packets of the at least one data-stream received by the first node exceeds said difference between latencies.

Abstract translation: 本发明涉及在数据通信网络中重新路由分组数据的领域，其中期望在接收机端保持原始分组顺序，而不显着增加系统复杂性，处理等待时间或相关成本。 为此，本发明提出了一种重新路由至少一个数据流和网络元件以重新路由至少一个数据流的方法。 在第一节点处接收的数据流的第一部分和第二部分分别经由两个不同的网络路径发送到第二节点。 所述至少一个数据流的第一部分经由第一网络路径从第一节点传送到第二节点。 确定用于将第二部分发送到第二节点的第二网络路径，并且还确定第一和第二网络路径的延迟之间的差异。 如果第一网络路径的延迟大于第二网络路径的延迟，则将第一节点处的至少一个数据流从第一网络路径重新路由到第二网络路径，条件是， 由第一节点接收的至少一个数据流的数据分组超过了延迟之间的所述差。