[1] QUINN P,KUMARS,AGARWALP,et al.Network service chaining problem statement[S].IETF RFC7498,2015.
[2] BHAMARE D,JAIN R,SAMAKA M,et al.A survey on service function chaining[J].Journal of Network & Computer Applications,2016,75(11):138.
[3] SHERRY J,HASAN S,SCOTT C,et al.Making middleboxes someone else's problem:Network processing as a cloud service[C]//Proceedings of the ACM SIGCOMM2012 Conference on Applications,Technologies,Architectures,and Protocols for Computer communication.New York:ACM,2012:13.
[4] MCKEOWN N,ANDERSON T,BALAKRISHNAN H,et al.OpenFlow:Enabling innovation in campus networks[J].SIGCOMM Computer Communication Review,2008,38(2):69.
[5] LIY,CHENM.Software-defined network function virtualization:A survey[J].IEEE Access,2015,3:2542.
[6] HALPERNJ,PIGNATARO C.Service function chaining (SFC) architecture[S].IETF RFC 7655,2015.
[7] JOHN W,PENTIKOUSIS K,AGAPIOU G,et al.Research directions in network service chaining[C]//Proceedings of 2013 IEEE SDN for Future Networks and Services (SDN4FNS).Piscataway:IEEE,2013:1.
[8] MEDHATAM,TALEB T,ELMANGOUSH A,et al.Service function chaining in next generation networks:State of the art and research challenges[J].IEEE Communications Magazine,2017,55(2):216.
[9] HUANG C C,ZHU J F.Service fowarding label for network function virtualization and application-centric traffic steering[C]//Proceedingsof International Joint Conference on E-business & Telecommunications.Piscataway:IEEE,2015.
[10] FAYAZBAKHSH S K,CHIANG L,SEKAR V.Enforcing network-wide policies in the presence of dynamic middlebox actions using flowtags[C]//Proceedings of the 11th USENIX NSDI.Berkeley:USENIX Association,2014:533.
[11] QAZI Z A,TU C C,CHIANG L,et al.SIMPLE-fying middlebox policy enforcement using SDN[C]//Proceedingsof ACM SIGCOMM.New York:ACM,2013:27.
[12] ZHANG Y,BEHESHTI N,BELIVEAU L,et al.Steering:A software-defined networking for inline service chaining[C]//Proceedings of IEEE ICNP.Piscataway:IEEE,2013.
[13] VU A V,KIMYH.An implementation of hierarchical service function chaining using OpenDaylight platform[C]//Proceedings of IEEE NetSoft.Piscataway:IEEE,2016.
[14] IETF.Service function chaining (sfc)[EB/OL].(2013-05-01)[2020-03-27].https://datatracker.ietf.org/wg/sfc/about/.
[15] ONF.Openflow switch specification Version1.5[EB/OL].(2011-10-01)[2020-03-27].https://www.opennetworking.org/wp-content/uploads/2014/10/openflow-switch-v1.5.1.pdf.
[16] SONG H Y.Protocol-oblivious forwarding:Unleash the power of SDN through a future-proof forwarding plane[C]//Proceedings of 2nd ACM SIGCOMM Workshop Hot Topics Software Defined Network.New York:ACM,2013:127.
[17] QUINN P,GUICHARDJ.Service function chaining:Creating a service plane via network service headers[J].Computer,2014,47(11):38.
[18] FILSFILS C,PREVIDI S,GINSBERG L,et al.Segment routing architecture[S].IETF RFC 8402,2018.