abstract = "By allowing network functions to be virtualized and
run on commodity hardware, NFV enables new properties
(e.g., elastic scaling), and new service models for
Service Providers, Enterprises, and Telecommunication
Service Providers. However, for NFV to be offered as a
service, several research problems still need to be
addressed. In this paper, we focus and propose a new
service chaining algorithm. Existing solutions suffer
two main limitations: First, existing proposals often
rely on mixed Integer Linear Programming to optimize VM
allocation and network management, but our experiments
show that such approach is too slow taking hours to
find a solution. Second, although existing proposals
have considered the VM placement and network
configuration jointly, they frequently assume the
network configuration cannot be changed. Instead, we
believe that both computing and network resources
should be able to be updated concurrently for increased
flexibility and to satisfy SLA and Qos requirements. As
such, we formulate and propose a Genetic Algorithm
based approach to solve the VM allocation and network
management problem. We built an experimental NFV
platform, and run a set of experiments. The results
show that our proposed GA approach can compute
configurations to to three orders of magnitude faster
than traditional solutions.",