公开(公告)号：US20160248666A1

公开(公告)日：2016-08-25

申请号：US15147612

申请日：2016-05-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingjun Chu ,  Peter Ashwood-Smith ,  Yapeng Wu ,  Guoli Yin

IPC: H04L12/723 ,  H04L12/705 ,  H04L12/931 ,  H04L12/733

CPC classification number: H04L45/50 ,  H04L12/4633 ,  H04L45/122 ,  H04L45/18 ,  H04L45/20 ,  H04L49/354

Abstract: An embodiment method of loop suppression in a layer-two transit network with multiprotocol label switching (MPLS) encapsulation includes receiving a packet at a provider edge (PE) router for the layer-two transit network. The packet is stored in a non-transitory memory on the PE router. The packet is stored according to a packet data structure having an MPLS label field and a layer-two header. A time-to-live (TTL) attribute is then determined for the packet. The TTL attribute is written to the non-transitory memory in the MPLS label field. The packet is then routed according to information in the layer-two header.

公开(公告)号：US09350648B2

公开(公告)日：2016-05-24

申请号：US14274410

申请日：2014-05-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingjun Chu ,  Peter Ashwood-Smith ,  Yapeng Wu ,  Guoli Yin

IPC: H04L12/28 ,  H04L12/705 ,  H04L12/733 ,  H04L12/723

CPC classification number: H04L45/50 ,  H04L12/4633 ,  H04L45/122 ,  H04L45/18 ,  H04L45/20 ,  H04L49/354

Abstract: An embodiment method of loop suppression in a layer-two transit network with multiprotocol label switching (MPLS) encapsulation includes receiving a packet at a provider edge (PE) router for the layer-two transit network. The packet is stored in a non-transitory memory on the PE router. The packet is stored according to a packet data structure having an MPLS label field and a layer-two header. A time-to-live (TTL) attribute is then determined for the packet. The TTL attribute is written to the non-transitory memory in the MPLS label field. The packet is then routed according to information in the layer-two header.

Abstract translation: 具有多协议标签交换（MPLS）封装的二层转接网络中的环路抑制的实施方式包括：在用于二层转接网络的提供商边缘（PE）路由器处接收分组。 该数据包存储在PE路由器上的非暂存内存中。 分组根据具有MPLS标签字段和二层报头的分组数据结构来存储。 然后为分组确定生存时间（TTL）属性。 TTL属性被写入MPLS标签字段中的非暂存存储器。 然后根据第二层头部中的信息路由该分组。