公开(公告)号：US20200280514A1

公开(公告)日：2020-09-03

申请号：US16878428

申请日：2020-05-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junlin ZHANG ,  Zhenbin LI

IPC: H04L12/723 ,  H04L12/66 ,  H04L12/64 ,  H04L12/741 ,  H04L12/931 ,  H04L29/12 ,  H04L29/08

Abstract: The present application discloses a packet forwarding method, including: determining, by an Ingress PE in an Ethernet virtual private network instance (EVI), that a state of the EVI on a first Egress PE is Active, where an Ethernet virtual private network (EVPN) corresponding to the EVI includes a first CE; determining, by the Ingress PE, that a state of the EVI on a second Egress PE is Inactive; skipping, by the Ingress PE, forwarding a broadcast, unknown unicast, and multicast BUM packet to the second Egress PE, where the BUM packet is from the first CE; and forwarding, by the Ingress PE, the BUM packet to the first Egress PE. Repeated BUM traffic that is transmitted in a bearer network and is not finally sent to a remote site is reduced; therefore, a waste of bandwidth in the bearer network is reduced.

公开(公告)号：US20190140950A1

公开(公告)日：2019-05-09

申请号：US16236593

申请日：2018-12-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan ZHUANG ,  Junlin ZHANG ,  Nan WU

IPC: H04L12/741 ,  H04L12/66

Abstract: The disclosure application discloses a method. The method includes: determining, by a control node, routing entry information of a service function forwarding node in a SFP in the SFC, where the routing entry information records a mapping relationship between route prefix information and next hop information, the route prefix information includes a SPI and a SI, the SPI is used to identify the SFP, the SI is used to identify a location of the service function forwarding node in the SFP, and the next hop information is used to indicate a next hop node of the service function forwarding node in the SFP; and sending, by the control node, the routing entry information to the service function forwarding node, where the routing entry information is used by the service function forwarding node to generate a forwarding table used to instruct the service function forwarding node to forward a packet.

公开(公告)号：US20160134525A1

公开(公告)日：2016-05-12

申请号：US14981520

申请日：2015-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junlin ZHANG ,  Zhenbin LI

IPC: H04L12/723 ,  H04L29/12 ,  H04L12/931 ,  H04L12/741 ,  H04L29/08

Abstract: The present application discloses a packet forwarding method, including: determining, by an Ingress PE in an Ethernet virtual private network instance (EVI), that a state of the EVI on a first Egress PE is Active, where an Ethernet virtual private network (EVPN) corresponding to the EVI includes a first CE; determining, by the Ingress PE, that a state of the EVI on a second Egress PE is Inactive; skipping, by the Ingress PE, forwarding a broadcast, unknown unicast, and multicast BUM packet to the second Egress PE, where the BUM packet is from the first CE; and forwarding, by the Ingress PE, the BUM packet to the first Egress PE. Repeated BUM traffic that is transmitted in a bearer network and is not finally sent to a remote site is reduced; therefore, a waste of bandwidth in the bearer network is reduced.

Abstract translation: 本申请公开了一种分组转发方法，包括：通过以太网虚拟专用网络实例（EVI）中的入口PE确定第一出口PE上的EVI的状态为活动，其中以太网虚拟专用网（EVPN ）包括第一CE; 由Ingress PE确定在第二个出口PE上的EVI的状态是不活动的; 由Ingress PE跳过，将广播，未知单播和多播BUM分组转发到第二出口PE，其中BUM分组来自第一CE; 并通过Ingress PE将BUM包转发到第一个出口PE。 在承载网络中发送并且不是最终发送到远程站点的重复的BUM业务被减少; 因此，承载网络中的带宽浪费降低。