Optimalisasi Jaringan Komputer Menggunakan Algoritma Load Balancing di Virtual Server Citrix ADC

Hardiyan K Ramadhan, Sukma Wardhana

Abstract


Meningkatnya jumlah pengguna internet harus diimbangi dengan kesiapan kapasitas infrastruktur jaringan dan server. Di era digital dan merebaknya pandemi COVID-19 memaksa semua aktifitas dilakukan secara online. Apabila jumlah pengguna yang mengakses server melebihi kapasitas infrastruktur jaringan dan server maka yang terjadi adalah server down. Diperlukan perangkat load balancer untuk membagi beban traffic request dari pengguna menuju server. Penelitian ini membandingkan tiga algoritma pada load balancer Citrix ADC VPX: least connection, least response time, dan round-robin. Menggunakan empat skenario yang berbeda pada GNS3, pertama adalah topologi yang hanya menggunakan single web server, kedua menggunakan load balancer, empat web server dan algoritma round-robin, ketiga algoritma diganti menjadi least connection, dan terakhir algoritma least response time. Hasil pengujian parameter response time, throughput dan cpu utilization menunjukan algoritma least connection lebih unggul. Terdapat penurunan response time sebesar 33%, cpu utilization 75% dan kenaikan throughput 53%. Pada parameter service hits, algoritma round-robin memiliki distribusi traffic yang paling merata. Maka algoritma dengan response time, throughput dan cpu utilization terbaik adalah least connection. Algoritma dengan service hits terbaik adalah round-robin. Implementasi skala besar direkomendasikan menggunakan algoritma least connection mengacu pada parameter response time, throughput dan cpu utilization. Apabila menekankan pada distribusi yang paling merata gunakan algoritma round-robin.
Kata Kunci: load balancing, Citrix ADC VPX, round-robin, least connection, least response time


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References


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