User's Manual

UTT Technologies Chapter 10 QoS
http://www.uttglobal.com Page 259
10.1.3 Implementation of Bandwidth Management
Using intelligent bandwidth management based on token bucket algorithm, the Device
can flexibly control the upload and download bandwidth of the LAN hosts. There are four
process mechanisms depending on the bandwidth utilization:
1. When the bandwidth utilization level is idle, each LAN host is likely to obtain its
maximum bandwidth.
2. When the bandwidth utilization level is normal, each LAN host can obtain a bandwidth
between its guaranteed and maximum bandwidth, and the bandwidth allocated to the
LAN hosts are closest to their maximum bandwidth.
3. When the bandwidth utilization level is busy, each LAN host can only obtain its
guaranteed bandwidth.
4. When the bandwidth utilization level is exhausted, only the LAN hosts with high
priority can obtain their guaranteed bandwidth, any other LAN host can only obtain a
bandwidth lower than the guaranteed bandwidth.
Depending on the ratio of the actual capacity (i.e., total number of network devices
connected to the Device) to the user-defined capacity (set by Capacity in the QoS >
Global Settings page), we divide the bandwidth utilization into four levels: Idle, Normal,
Busy, and Exhausted.
Ɣ Idle: The ratio is below 50%.
Ɣ Normal: The ratio is between 50% and 95%.
Ɣ Busy: The ratio is between 95% and 100%.
Ɣ Exhausted: The ratio is above 100%.
The intelligent bandwidth management feature can help you effectively solve the network
congestion problem due to network abuse by the LAN users, and ensure full bandwidth
utilization without affecting the other users. In short, this feature can help you truly
implement intelligent and flexible bandwidth management.