公开(公告)号：US20190181999A1

公开(公告)日：2019-06-13

申请号：US16240782

申请日：2019-01-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zongpeng DU ,  Guoyi CHEN ,  Jie DONG ,  Xinyuan WANG ,  Jun GONG

IPC: H04L5/00 ,  H04L12/723

Abstract: A forwarding table generation method is provided. The method includes: determining, by a forwarding device, a first timeslot set, where the first timeslot set includes multiple timeslots during which the forwarding device sends, to a first device by using a first flexible Ethernet group, multiple encoded data blocks generated by a physical coding sublayer; determining, by the forwarding device, a second timeslot set, where the second timeslot set includes multiple timeslots during which the forwarding device receives, by using a second FlexE group, the multiple encoded data blocks sent by a second device; and generating, by the forwarding device, a forwarding table, where the forwarding table includes a mapping relationship between the second FlexE group and the multiple timeslots included in the second timeslot set, and between the first FlexE group and the multiple timeslots included in the first timeslot set.

公开(公告)号：US20190132234A1

公开(公告)日：2019-05-02

申请号：US16232854

申请日：2018-12-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie DONG ,  Guoyi CHEN ,  Zongpeng DU ,  Ling XU

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

Abstract: This application discloses a method for computing a forwarding path. The method includes: receiving, by a network device, notification packets separately sent by a plurality of forwarding nodes, where each notification packet includes interface forwarding delay information of the forwarding node that sends the notification packet, device forwarding delay information of the forwarding node, and a transmission delay of a link connected to the forwarding node; obtaining the interface forwarding delay information and the device forwarding delay information of each of the plurality of forwarding nodes, and obtaining a transmission delay of a link between the plurality of forwarding nodes; and computing a forwarding path between a first forwarding node and a second forwarding node, where a forwarding delay of the forwarding path meets a delay requirement of a service.

公开(公告)号：US20140348028A1

公开(公告)日：2014-11-27

申请号：US14332860

申请日：2014-07-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guoyi CHEN ,  Lianshu ZHENG ,  Jie DONG

IPC: H04L12/24 ,  H04L12/437 ,  H04L12/723

CPC classification number: H04L41/12 ,  H04L12/40013 ,  H04L12/437 ,  H04L12/4633 ,  H04L12/4637 ,  H04L45/28 ,  H04L45/50

Abstract: Embodiments of the present invention disclose a method for creating a ring network label switched path. The method includes: receiving, by a first node, a first Path message used for creating a first label switched path from a second node; allocating a first label to the first label switched path; sending a first Resv message carrying the first label to the second node; and when the first node receives a second Path message and determines that a destination node of the second label switched path is the same as that of the first label switched path, allocating the first label to the second label switched path; and sending a second Resv message carrying the first label to the second node. Solutions of the embodiments of the present invention helps reduce the number of created ring network label switched paths and maintenance complexity.

Abstract translation: 本发明的实施例公开了一种用于创建环网标签交换路径的方法。 该方法包括：由第一节点接收用于从第二节点创建第一标签交换路径的第一路径消息; 向第一标签交换路径分配第一标签; 向所述第二节点发送携带所述第一标签的第一Resv消息; 并且当所述第一节点接收到第二路径消息并且确定所述第二标签交换路径的目的地节点与所述第一标签交换路径的目的地节点相同时，将所述第一标签分配给所述第二标签交换路径; 以及向所述第二节点发送携带所述第一标签的第二Resv消息。 本发明的实施例的解决方案有助于减少创建的环网标签交换路径的数量和维护复杂性。

公开(公告)号：US20140022890A1

公开(公告)日：2014-01-23

申请号：US14030700

申请日：2013-09-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie DONG ,  Guoyi Chen

IPC: H04L12/24

CPC classification number: H04L41/0654 ,  H04L12/413 ,  H04L12/4641 ,  H04L45/28 ,  H04L45/68

Abstract: Embodiments of the present invention provide a VPLS fast rerouting method and device. The method includes: generating, by a remote PE, a backup forwarding entry; and when a designated forwarder or a designated forwarder pseudo wire in a multihoming protection group fails, or the designated forwarder is switched in the multihoming protection group, forwarding, by the remote PE, a data packet according to the backup forwarding entry, thereby avoiding broadcasting the data packet to all remote PEs that belong to the same VPLS instance, and further reducing a waste of bandwidth resources in a backbone network and processing resources of the PE.

Abstract translation: 本发明的实施例提供一种VPLS快速重路由方法和装置。 该方法包括：由远程PE生成备份转发表项; 并且当多重保护组中的指定转发器或指定的转发器伪线路发生故障时，或者指定的转发器在多重保护组中切换时，由远程PE转发根据备份转发表项的数据分组，从而避免广播 将数据包分配给属于同一VPLS实例的所有远程PE，进一步减少了骨干网中带宽资源的浪费和处理PE的资源。