Quality Of Service - Draytek Vigor 2925 Series User Manual

Limitation List
Specific Limitation
Smart Bandwidth Limit
Time Schedule
4 . 1 0 . 3 Q u a l i t y o f
4 . 1 0 . 3 Q u a l i t y o f
Deploying QoS (Quality of Service) management to guarantee that all applications receive the
service levels required and sufficient bandwidth to meet performance expectations is indeed
one important aspect of modern enterprise network.
One reason for QoS is that numerous TCP-based applications tend to continually increase their
transmission rate and consume all available bandwidth, which is called TCP slow start. If
other applications are not protected by QoS, it will detract much from their performance in the
downstream for each computer in LAN.
Allow auto adjustment....- Check this box to make the
best utilization of available bandwidth.
Display a list of specific limitations that you set on this web
page.
Start IP - Define the start IP address for limit bandwidth.
End IP - Define the end IP address for limit bandwidth.
Each /Shared - Select Each to make each IP within the
range of Start IP and End IP having the same speed defined
in TX limit and RX limit fields; select Shared to make all
the IPs within the range of Start IP and End IP share the
speed defined in TX limit and RX limit fields.
TX limit - Define the limitation for the speed of the
upstream. If you do not set the limit in this field, the system
will use the default speed for the specific limitation you set
for each index.
RX limit - Define the limitation for the speed of the
downstream. If you do not set the limit in this field, the
system will use the default speed for the specific limitation
you set for each index.
Add - Add the specific speed limitation onto the list above.
Edit - Allow you to edit the settings for the selected
limitation.
Delete - Remove the selected settings existing on the
limitation list.
Check this box to have the bandwidth limit determined by
the system automatically.
TX limit - Define the limitation for the speed of the
upstream. If you do not set the limit in this field, the system
will use the default speed for the specific limitation you set
for each index.
RX limit - Define the limitation for the speed of the
downstream. If you do not set the limit in this field, the
system will use the default speed for the specific limitation
you set for each index.
Index (1-15) in Schedule Setup - You can type in four sets
of time schedule for your request. All the schedules can be
set previously in Application >> Schedule web page and
you can use the number that you have set in that web page.
S e r v i c e
S e r v i c e
253 Vigor2925 Series User's Guide