Implementasi Manajemen Quality of Service (QoS) untuk Trafik Real-Time pada Jaringan Software Defined Networking

Fithriyanto, Muhammad (2026) Implementasi Manajemen Quality of Service (QoS) untuk Trafik Real-Time pada Jaringan Software Defined Networking. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Layanan real-time seperti VoIP sangat sensitif terhadap keterlambatan dan variasi delay, sehingga rentan mengalami penurunan kualitas ketika bersaing dengan trafik lain pada kondisi jaringan yang padat. Software Defined Networking (SDN) menawarkan pengelolaan trafik yang lebih fleksibel melalui pemisahan control plane dan data plane. Penelitian ini mengimplementasikan mekanisme Quality of Service (QoS) berbasis Hierarchical Token Bucket (HTB) pada jaringan SDN untuk melindungi trafik VoIP dari degradasi akibat kongesti. Sistem dibangun menggunakan emulator Mininet dengan topologi Tree 2-Level, Ryu Controller berbasis OpenFlow 1.3, dan algoritma HTB pada Open vSwitch, dengan jaminan bandwidth minimum 7 Mbps bagi trafik VoIP. Pengujian dilakukan pada kondisi baseline dan empat tingkat beban VoIP (2, 4, 6, dan 8 Mbps), membandingkan kondisi tanpa QoS dan dengan QoS. Parameter throughput, delay, jitter, dan packet loss diukur menggunakan D-ITG serta dievaluasi berdasarkan standar TIPHON dan ITU-T G.114. Hasil pengujian menunjukkan bahwa penerapan QoS HTB paling efektif pada beban rendah, dengan penurunan jitter sebesar 22,1% pada beban 2 Mbps, sedangkan pada kondisi overload 8 Mbps QoS menurunkan packet loss sebesar 12,0%. Throughput VoIP terukur bervariasi sesuai beban, yaitu dari 1,6 Mbps hingga 5,2 Mbps, dan delay propagasi baseline sebesar 9,4 ms termasuk kategori Acceptable. Seluruh skenario memenuhi kategori Baik pada parameter jitter dan packet loss. Dengan demikian, mekanisme QoS berbasis HTB pada jaringan SDN terbukti efektif menjaga kualitas layanan VoIP, terutama dalam menekan jitter pada kondisi beban rendah hingga menengah.
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Real-time services such as VoIP are highly sensitive to delay and delay variation, making them prone to quality degradation when competing with other traffic under congested network conditions. Software Defined Networking (SDN) offers more flexible traffic management through the separation of the control plane and data plane. This study implements a Quality of Service (QoS) mechanism based on Hierarchical Token Bucket (HTB) in an SDN network to protect VoIP traffic from congestion-induced degradation. The system was built using the Mininet emulator with a Tree 2-Level topology, a Ryu Controller based on OpenFlow 1.3, and the HTB algorithm on Open vSwitch, providing a minimum guaranteed bandwidth of 7 Mbps for VoIP traffic. Testing was conducted under a baseline condition and four VoIP load levels (2, 4, 6, and 8 Mbps), comparing conditions without QoS and with QoS. The throughput, delay, jitter, and packet loss parameters were measured using D-ITG and evaluated based on the TIPHON and ITU-T G.114 standards. The results show that the HTB QoS mechanism is most effective at low loads, with a jitter reduction of 22.1% at a 2 Mbps load, while under an overload condition of 8 Mbps the QoS reduced packet loss by 12.0%. The measured VoIP throughput varied according to the offered load, ranging from 1.6 Mbps to 5.2 Mbps, and the baseline propagation delay of 9.4 ms fell within the Acceptable category. All scenarios met the good category for jitter and packet loss parameters. Therefore, the HTB-based QoS mechanism in an SDN network is proven effective in maintaining VoIP service quality, particularly in suppressing jitter under low to medium load conditions.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Hierarchical Token Bucket, Mininet, Quality of Service, Ryu Controller, Software Defined Networking
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5105.585 TCP/IP (Computer network protocol) T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5105.5956 Quality of service. Reliability Including network performance T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Telecommunication Engineering > 20202-(S1) Undergraduate Thesis
Depositing User:	Muhammad Fithriyanto
Date Deposited:	24 Jul 2026 06:55
Last Modified:	24 Jul 2026 06:55
URI:	http://repository.its.ac.id/id/eprint/137080

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