公开(公告)号：US20170317926A1

公开(公告)日：2017-11-02

申请号：US15160804

申请日：2016-05-20

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Reinaldo Penno ,  Carlos M. Pignataro ,  Paul Quinn ,  Hung The Chau ,  Chui-Tin Yen ,  Vivek Kansal ,  Jianxin Wang ,  Kent K. Leung

IPC: H04L12/721 ,  H04L12/703 ,  H04L12/911

CPC classification number: H04L45/36 ,  H04L45/26 ,  H04L45/28 ,  H04L45/64 ,  H04L45/70 ,  H04L47/10 ,  H04L47/2441 ,  H04L47/726 ,  H04L2212/00

Abstract: Embodiments are directed to receiving an original packet at a service function; determining, for a reverse packet, a reverse service path identifier for a previous hop on a service function chain; determining, for the reverse packet, a service index for the reverse service path identifier; and transmitting the reverse packet to the previous hop on the service function chain.