公开(公告)号：US20170180247A1

公开(公告)日：2017-06-22

申请号：US15449850

申请日：2017-03-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuefeng LIN ,  Enhui LIU ,  Guoyi CHEN

IPC: H04L12/723 ,  H04L12/741 ,  H04L12/721 ,  H04L29/06

CPC classification number: H04L45/50 ,  H04L45/127 ,  H04L45/74 ,  H04L69/04 ,  H04L2212/00

Abstract: Embodiments of the present application provide a method and an apparatus for compressing a label stack. The method includes: obtaining a first label stack corresponding to a forwarding path, where the first label stack comprises node labels corresponding to each node on the forwarding path; selecting a first node label from the first label stack, where when forwarding a packet, a node corresponding to the first node label is capable of encapsulating at least two layers of labels in the packet; replacing at least two adjacent labels located after the first node label in the first label stack with a first compression label, to generate a second label stack; and instructing a source node on the forwarding path to perform packet processing according to the second label stack. In this way, a length of a label stack pushed into the packet can be shortened.