创建呼叫中心测试平台,用于集群中的Asterisk服务器负载均衡

IF 0.2 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Visnyk NTUU KPI Seriia-Radiotekhnika Radioaparatobuduvannia Pub Date : 2023-03-28 DOI:10.30837/rt.2023.1.212.18
L.O. Tokar, O.A. Koltakov, V.Y. Tsyliuryk
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引用次数: 0

摘要

本文讨论了呼叫中心中提高吞吐量的问题。目前的解决方案是集群调用服务器,并评估其特性,以确保高效运行和必要的容错性。研究表明,集群中服务器的负载均衡是影响呼叫中心质量运行的主要因素之一。考虑了呼叫中心建模过程的特点。建立了公司呼叫中心的组织方案和呼叫中心的网络模型。利用虚拟化技术建立了呼叫中心的网络模型。使用VMWare ESXI 6.7 hypervisor和vCenter客户端作为网络配置平台。采用不同的算法和策略对负载均衡进行了分析。配置Asterisk PBX并创建服务器集群。使用Zabbix开源产品开发和配置了一个测试台架,以探索调用服务器集群。得到了Asterisk _1服务器的带宽特性和网络图,这实际上代表了呼叫中心网络的模拟结构。给出了在三台Asterisk服务器上进行负载测试的过程以及Zabbix负载均衡功能的实现。已经创建了一个自定义sip会话脚本,用于接受调用和负载测试。计算呼叫中心能够处理的呼叫数。已经确定单个Asterisk服务器在其当前设置下最多可以处理915个并发调用。SIP服务器集群负载均衡进程启动。一组Asterisk服务器已被发现能够处理2550个同时调用。
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Creating a call center test bench for load balancing Asterisk servers in a cluster
The article deals with the issues of increasing throughput in call centers. The current solution is to cluster call servers and evaluate their characteristics to ensure efficient operation and the necessary fault tolerance. It is shown that one of the main aspects of the quality functioning of the call center is load balancing of servers in the cluster. The features of the call-center modeling process are considered. The organization scheme of the call center of the company and the network model of the call center have been created. Virtualization technology was used to create a network model of a call center. The VMWare ESXI 6.7 hypervisor and the vCenter client were used as a network configuration platform. An analysis of load balancing was carried out using different algorithms and strategies. Asterisk PBX was configured and a server cluster was created. A test bench was developed and configured using the Zabbix open source product to explore a cluster of call servers. A bandwidth characteristic for the Asterisk _1 server and a network map were obtained, which actually represents a simulated structure of the call center network. The process of load testing on three Asterisk servers and the implementation of Zabbix load balancing capabilities are shown. A custom SIPp session script has been created for accepting calls and load testing. The number of calls that the call center is able to handle is calculated. It has been determined that a single Asterisk server with its current settings can handle a maximum of 915 concurrent calls. The process of load balancing on a cluster of SIP servers has been launched. A cluster of Asterisk servers has been found to be capable of handling 2550 simultaneous calls.
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Visnyk NTUU KPI Seriia-Radiotekhnika Radioaparatobuduvannia
Visnyk NTUU KPI Seriia-Radiotekhnika Radioaparatobuduvannia ENGINEERING, ELECTRICAL & ELECTRONIC-
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