QoS (Quality of Service)
The Internet provides a "best effort" service — no guarantees on performance for a given end-to-end communication flow — no Quality of Service (QoS) control. However, it is useful to implement some monitoring and control of resources within an autonomous or constrained network environment, or to allow adaption to changing network conditions.
This work has considered measuring network performance and using the data to either provide some control of network resources, or to inform and enable applications and end-system to adapt their operation and behaviour to make best use of available network capacity.