Abstract

The inherent needs of organizations to improve and amplify their technological platform entail large expenses with the goal to enhance their performance. Hence, they have to contemplate mechanisms of optimization and the improvement of their operational infrastructure. In this direction arises the need to guarantee the correct operation and non-degradation of the services provided by the platform during the periods with a significant load of work. This type of scenario is perfectly applicable to the field of VoIP technologies, where users generate elevated loads of work on critical points of the infrastructure, during the process of interaction with their peers. In this research work, we propose a solution for high availability, with the goal of maintaining the continuity of the operation of communication environments based on the SIP protocol in high load. We validate our proposal through numerous experiments. Also, we compare our solution with other classical VoIP scenarios and show the advantages of a high availability and fault tolerance architecture for organizations.

Highlights

  • The rise of new technologies in the field of communications through the usage of computer networks has driven the growth of organizations

  • We propose a Voice over IP (VoIP) solution based on the Session Initiation Protocol [1][2][3] (SIP), and the usage of tools that allow the establishment of a network infrastructure of high availability and good performance, such as Kamailio [4], Corosync [5], Asterisk [6][7], among others

  • The establishment of monitoring and management service mechanisms within a high availability solution allows the identification of failure points, as well as the efficient determination and management of the components involved in its operation

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Summary

INTRODUCTION

The rise of new technologies in the field of communications through the usage of computer networks has driven the growth of organizations Motivated by their interest in an efficient application of resources, these organizations invest on innovative communication mechanisms, to establish connections between devices for the exchange of information, allowing the communication of well-identified entities. These communication technologies follow wellregulated operating schemes, which clearly define intermediate points, states, processes, and possible behaviors of communication, known as communication protocols.

ORGANIZATIONAL PROBLEMS
HIGH AVAILABILITY SOLUTIONS
High Availability Mechanisms
Load Balancing Mechanisms
Division of Services
Monitoring and Management of Services and Load
RELATED WORKS
High Availability for SIP
PROPOSED ARCHITECTURE AND SOLUTION
Open Source Components Used in our Architecture
TEST SCENARIOS
Scenarios to Assess the Architecture under Stress
DEFINITIONS OF TESTS AND PARTICULAR SITUATIONS
EXPECTED RESULTS OF TRANSACTIONAL FAILOVER MECHANISMS
Assessment of the Architecture under Stress
VIII. RESULTS AND ANALYSIS
Tests for Contingency Mechanisms
Tests of Stress
CONCLUSIONS AND FUTURE WORK

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