Implementation of QoS-HTB in Internet Banwidth Management in Computer Networks at the Integrated Computer Laboratory

Abstract

Universitas Muhammadiyah Semarang has 6 computer laboratory rooms, one server management\ room, and one main network room. The condition of full load for all laboratories is 240 work stations and at least 6 access for instructors/lecturers, must get guaranteed smooth access, both
downloading and uploading data as needed. According to internet needs in buildings, the Information and Communication Technology Technical Implementation Unit (UPT ICT) provides integrated internet access supplies with computer networks between buildings on campus. GKB II
is connected to a bandwidth of 500 megabytes per second (mbps) which is supplied from 2 (two) providers and can be added at any time when greater access is needed, especially in the computer laboratory. To regulate internet bandwidth usage for all users, efforts are made to guarantee internet bandwidth quality to optimal users by implementing Quality of Services (QoS) bandwidth management on routers by implementing a Hierarchical Token Bucket (HTB) which functions to regulate the distribution of bandwidth in a hierarchical manner. into network classes to make it easier to set up. This method allows it to be managed easily so that all network users can be properly controlled. The QoS method, which is a dynamic routing method, allows routing and network load sharing automatically according to the rules set for each connection access point installed on each floor of the building, especially in laboratories. User access to data in the laboratory network is optimally managed according to user load requirements. The results showed that at full load each
work station smoothly used the internet with a maximum access limitation of 2 mbps download and 2 mbps upload. Laboratories with a capacity of 30 computers have access restrictions of 40 mbps, and laboratories with a capacity of 50 computers have access restrictions of 60 mbps. This is adjusted to the QoS-HTB method and the observation that at full load bandwidth in each laboratory used is as much as 30-50%, the restrictions given to each laboratory above have met the access needs of
their users with an excess of 10% of the full load required. occur. The implementation of this model, the QoS-HTB model, is an effective choice in bandwidth management in the Unimus integrated computer laboratory.

Keywords: Computer Network, Bandwidth Management, QoS-HTB