2017/08/17 by Ahmadreza Montazerolghaem, Mohammad Hossein Yaghmaee, Mohammad Hossein Yaghmaee Moghaddam +1 · 1 citation
Computer Science · Engineering · #IPv6, Mobility, Handover, Networks, Security #Network Traffic and Congestion Control #Software-Defined Networks and 5G #cs.NI
paper · pdf · doi:10.1109/tnsm.2017.2741258
IEEE Transactions on Network and Service Management, vol. PP, no. 99, pp. 1-1. keywords: {Databases;IP networks;Resource management;Routing;Routing protocols;Servers;OpenFlow.;SDN and NFV orchestration;SIP Network management;SIP Resource Allocation;SIP Routing}
openalex publication_date 2017/08/17 · openalex created_date 2017/08/31 · arxiv created 2017/09/05 · arxiv updated 2017/09/06 · openalex updated_date 2026/08/05
VoIP is becoming a low-priced and efficient replacement for PSTN in communication industries. With a widely growing adoption rate, SIP is an application layer signaling protocol, standardized by the IETF, for creating, modifying, and terminating VoIP sessions. Generally speaking, SIP routes a call request to its destination by using SIP proxies. With the increasing use of SIP, traditional configurations pose certain drawbacks, such as ineffective routing, un-optimized management of proxy resources (including CPU and memory), and overload conditions. This paper presents OpenSIP to upgrade the SIP network framework with emerging technologies, such as SDN and NFV. SDN provides for management that decouples the data and control planes along with a software-based centralized control that results in effective routing and resource management. Moreover, NFV assists SDN by virtualizing various network devices and functions. However, current SDN elements limit the inspected fields to layer 2-4 headers, whereas SIP routing information resides in the layer-7 header. A benefit of OpenSIP is that it enforces policies on SIP networking that are agnostic to higher layers with the aid of a Deep Packet Inspection (DPI) engine. Among the benefits of OpenSIP is programmability, cost reduction, unified management, routing, as well as efficient load balancing. The present study implements OpenSIP on a real testbed which includes Open vSwitch and the Floodlight controller. The results show that the proposed architecture has a low overhead and satisfactory performance and, in addition, can take advantage of a flexible scale-out design during application deployment.