Operation Manual
Vigor2133 Series User’s Guide 
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When you click Setup, you can configure the bandwidth ratio for QoS of the WAN interface. 
There are four queues allowed for QoS control. The first three (Class 1 to Class 3) class rules 
can be adjusted for your necessity. Yet, the last one is reserved for the packets which are not 
suitable for the user-defined class rules. 
Available settings are explained as follows: 
Item Description 
Enable the QoS Control  The factory default for this setting is checked. 
Please also define which traffic the QoS Control settings will 
apply to. 
IN- apply to incoming traffic only. 
OUT-apply to outgoing traffic only. 
BOTH- apply to both incoming and outgoing traffic. 
Check this box and click OK, then click Setup link again. You 
will see the Online Statistics link appearing on this page. 
WAN Inbound Bandwidth  It allows you to set the connecting rate of data input for 
other WAN. For example, if your ADSL supports 1M of 
downstream and 256K upstream, please set 1000kbps for this 
box. The default value is 10000kbps. 
WAN Outbound Bandwidth
It allows you to set the connecting rate of data output for 
other WAN. For example, if your ADSL supports 1M of 
downstream and 256K upstream, please set 256kbps for this 
box. The default value is 10000kbps. 
Reserved Bandwidth Ratio
It is reserved for the group index in the form of ratio of 
reserved bandwidth to upstream speed and reserved 
bandwidth to downstream speed. 
Enable UDP Bandwidth 
Control 
Check this and set the limited bandwidth ratio on the right 
field. This is a protection of TCP application traffic since UDP 
application traffic such as streaming video will exhaust lots 
of bandwidth. 
Outbound TCP ACK 
Prioritize 
The difference in bandwidth between download and upload 
are great in ADSL2+ environment. For the download speed 










