公开(公告)号：US11888734B2

公开(公告)日：2024-01-30

申请号：US17170318

申请日：2021-02-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： James N. Guichard ,  Haoyu Song ,  Loa Andersson

IPC: H04L45/50 ,  H04L45/745 ,  H04L69/22

CPC classification number: H04L45/507 ,  H04L45/745 ,  H04L69/22

Abstract: A mixed Multiprotocol Label Switching (MPLS) network includes both extension header capable (EH capable) nodes and EH non-capable nodes. A first EH capable node receives advertised capabilities of a downstream node. These advertised capabilities indicate whether the downstream node is EH capable. The first EH capable node receives a packet to be transmitted to the downstream node via the MPLS network, and determines whether the packet includes an extension header (EH). The node inserts an EH label into an MPLS label stack of the packet after determining the advertised capabilities of the downstream node indicate that the downstream node is EH capable, and after determining the packet does not include the EH.

公开(公告)号：US20210203599A1

公开(公告)日：2021-07-01

申请号：US17170318

申请日：2021-02-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： James N. Guichard ,  Haoyu Song ,  Loa Andersson

IPC: H04L12/723 ,  H04L29/06 ,  H04L12/741

Abstract: A mixed Multiprotocol Label Switching (MPLS) network includes both extension header capable (EH capable) nodes and EH non-capable nodes. A first EH capable node receives advertised capabilities of a downstream node. These advertised capabilities indicate whether the downstream node is EH capable. The first EH capable node receives a packet to be transmitted to the downstream node via the MPLS network, and determines whether the packet includes an extension header (EH). The node inserts an EH label into an MPLS label stack of the packet after determining the advertised capabilities of the downstream node indicate that the downstream node is EH capable, and after determining the packet does not include the EH.