Abstract— The development of information technology and
computer network from time to time is increasing along with the
increase in user needs for both from the business, education,
industrial, to data security side. Data of network traffic that is
getting denser in communication and data exchange between
users on computer networks can become a problem when using
conventional computer network technology. For that, it needs a
new technology that is implemented in computer networks, along

with the measurement of Quality of Service (QoS) in it. Software-
Defined Networking (SDN) is a solution for this, where the stages

of network design, management and implementation, separate
the data plane and the control plane. In this research, the
implementation of SDN was carried out in the form of a
simulation using both of Mininet and OpenDaylight with a Tree
Topology, then the QoS measurements were carried out in it. The
results of testing and measuring QoS on SDN simulations with
Tree topology using Mininet and OpenDaylight, showed a Jitter
value of 0.425 ms, a Packet Loss value of 0.266%, a Bandwith
value of 9.3925 Mbps, a UDP Throughput value of 2.348 bits/sec,
and a TCPThroughput value of 2.335 bits/sec.