  In this work, we have formulated a controllerhypervisor (C-H) pair deployment
approach to provide various network functions (such as differentiation between
control and data signals, different translation functions etc.) with low
latency. The system model deals with a real network topology and four well
defined network latency matrices with an MILP model has been well constructed
to optimize latency objectives. Reverse Path-Flow Mechanism (RPFM) has been
proposed in order to provide feasible solutions by keeping the network load and
link capacity constrained under tolerance limit. We further minimize the
H-plane load by distributing the network resources based on the arrival time of
SERVICE IN requests from users. Through extensive experiment, the efficacy of
the proposed system has been demonstrated in terms of significant latency
reduction and an e-ULL (evolved-Ultra Low Latency) experience with efficient
handling of all real-time user demands. The proposed approach can be used for
similar localization problems like service chain mapping in 5G-NR, baseband
unit deployment in 5G C-RAN, firewall deployment in distributed CPS.
