@inproceedings{6972,
  abstract     = {{In recent years, a variety of different approaches
have been proposed to tackle the problem of scaling and placing
network services, consisting of interconnected virtual network
functions (VNFs). This paper presents a placement abstraction
layer (PAL) that provides a clear and simple northbound interface
for using such algorithms while hiding their internal
functionality and implementation. Through its southbound interface,
PAL can connect to different back ends that evaluate
the calculated placements, e.g., using simulations, emulations, or
testbed approaches. As an example for such evaluation back ends,
we introduce a novel placement emulation framework (PEF)
that allows executing calculated placements using real, containerbased
VNFs on real-world network topologies. In a case study,
we show how PAL and PEF facilitate reusing and evaluating
placement algorithms as well as validating their underlying
models and performance claims.}},
  author       = {{Schneider, Stefan Balthasar and Peuster, Manuel and Karl, Holger}},
  booktitle    = {{IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN 2018)}},
  location     = {{Verona, Italy}},
  publisher    = {{IEEE}},
  title        = {{{A Generic Emulation Framework for Reusing and Evaluating VNF Placement Algorithms}}},
  doi          = {{10.1109/NFV-SDN.2018.8725795}},
  year         = {{2018}},
}