human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "software defined networking a comprehensive survey"):
  Abstract: Software-Defined Networking (SDN) is an emerging paradigm that promises to change this state of affairs, by breaking vertical integration, separating the network's control logic from the underlying routers and switches, promoting (logical) centralization of network control, and introducing the ability to program the network. The separation of concerns introduced between the definition of network policies, their implementation in switching hardware, and the forwarding of traffic, is key to the desired flexibility: by breaking the network control problem into tractable pieces, SDN makes it easier to create and introduce new abstractions in networking, simplifying network management and facilitating network evolution. In this paper we present a comprehensive survey on SDN. We start by introducing the motivation for SDN, explain its main concepts and how it differs from traditional networking, its roots, and the standardization activities regarding this novel paradigm. Next, we present the key building blocks of an SDN infrastructure using a bottom-up, layered approach. We provide an in-depth analysis of the hardware infrastructure, southbound and northbound APIs, network virtualization layers, network operating systems (SDN controllers), network programming languages, and network applications. We also look at cross-layer problems such as debugging and troubleshooting. In an effort to anticipate the future evolution of this new paradigm, we discuss the main ongoing research efforts and challenges of SDN. In particular, we address the design of switches and control platforms -- with a focus on aspects such as resiliency, scalability, performance, security and dependability -- as well as new opportunities for carrier transport networks and cloud providers. Last but not least, we analyze the position of SDN as a key enabler of a software-defined environment.

Includes members:
  Member "splitarchitecture sdn for the carrier domain":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "a survey on data plane flexibility and programmability in software defined networking")
  Member "split architecture for large scale wide area networks":
    also connected through other hyperedges:
      (none)
  Member "tinynbi distilling an api from essential openflow abstractions":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "a comprehensive survey of interface protocols for software defined networks")
  Member "emerging technologies and research challenges for 5g wireless networks":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "blockchain for 5g and beyond networks a state of the art survey")
  Member "distributed and collaborative traffic monitoring in software defined networks":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "detecting heavy flows in the sdn match and action model")
  Member "oshi open source hybrid ip sdn networking and its emulation on mininet and on distributed sdn testbeds":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "segment routing a comprehensive survey of research activities standardization efforts and implementation results")
  Member "controlling a software defined network via distributed controllers":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "software defined networking state of the art and research challenges")
  Member "streamon a data plane programming abstraction for software defined stream monitoring":
    also connected through other hyperedges:
      (none)

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.NI(Networking and Internet Architecture)