Cost Efficient and Low-Latency Network Service Chain Deployment Across Multiple Domains for SDN

Abstract

With the fast development of Internet, network traffic rapidly grows and the size of Internet scale gradually becomes bigger. It brings serious challenges to Network Service Chain (NSC) deployment across multiple domains which are managed by different network operators and service providers. It is difficult for each server in the multi-domain network to obtain a global topology view and available resource information of other domains. Meanwhile, there exist various operational strategies for different network operators and service providers in the multi-domain network. How to optimally deploy NSCs in a multidomain network to realize cost efficient and low latency service provisioning is challenging. To this end, in this paper, we study the problem of NSC deployment across multiple domains. Specifically, by leveraging Software Defined Networking (SDN) architecture, we present a novel service deployment framework to deploy Virtual Network Functions (VNFs) in the multi-domain network in a cost efficient and low latency method. Then, we establish a multi-objective optimization model with the target of minimizing end-to-end delay, service cost and operational cost with the constraints of resource allocation and VNF dependency relationships. Furthermore, we design a novel heuristic NSC deployment algorithm to solve the optimization model. In the proposed heuristic algorithm, VNF dependency relationship based NSC processing workflow optimization method and Dijkstra algorithm based NSC deployment adjustment method are presented to optimize delay and cost. Finally, extensive simulations demonstrate that the proposed heuristic deployment algorithm is efficient and outperforms comparison algorithms in terms of end-to-end delay, service cost and operational cost.INDEX TERMS NSC, multi-domain network, cost efficiency, low latency.

R-Learning-Based Admission Control for Service Federation in Multi-domain 5G Networks

“…Service federation is an ingredient component of the 5G and beyond networks architecture [1], [2]. The problem of service federation is formulated as a Integer Linear Programming model in [12], which is extended in the subsequent works to consider energy efficiency [13], [14] and network services latency [15]. From the implementation point of view, service federation was studied in [16] and [17].…”

An Overview on SDN and NFV Security Orchestration in Cloud Network Environment

“…Such vulnerabilities lead to weakening the network's security and allowing the attackers to execute several security attacks. http://journals.cihanuniversity.edu.iq/index.php/cuesj CUESJ 2021, 5 (1): [20][21][22][23][24][25][26][27] There are also instances in which the attackers create their controllers as per their set of policies and protocols and trick the network elements through the same. The network elements trust the fake controller as the original and various attacks are executed.…”

“…Therefore, it must manage access to the SDN using several administrative and technical security controls. [20] The administrative controls shall include enhanced security policies and protocols to control the access. In contrast, the technical controls shall include the use of technically advanced mechanisms such as multistep authentication, single sign-on, and likewise for the control of access.…”

Multi-Provider NFV Network Service Delegation via Average Reward Reinforcement Learning

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