A real-time multimedia transmission requires the 
QoS guarantees to preserve the real-time character of the stream. 
Nowadays, we have several methods for QoS provisioning in IP 
networks. In this paper we propose a novel method for dynamic 
network resource allocation using the IP Traffic Flow 
Description option. Our solution deals with the problem of the 
trade-off between link utilization and the quality of real-time 
service. We tested the proposed method using the emulation 
system, which consists of a streaming server, a network emulator 
and video receivers. As network emulator, the Berkeley's ns-2 
simulator (working in emulation mode) was used. The streaming 
server and the video receiver were built on the base VLC 
software. The results of the experiment performed in the test 
environment show that the proposed solution ensures both 
satisfactory QoS for HD video and good link utilization.