Draytek 2800 Series 用户指南

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页码 197
 
Vigor2800 Series User’s Guide 
62 
 
However, each node may take different attitude toward packets with high priority marking 
since it may bind with the business deal of SLA among different DS domain owners. It’s not 
easy to achieve deterministic and consistent high-priority QoS traffic throughout the whole 
network with merely Vigor router’s effort. 
In the Bandwidth Management menu, click Quality of Service to open the web page. 
 
Enable the QoS Control 
The factory default for this setting is checked. 
Direction 
Define which traffic the QoS Control settings apply to. 
IN- apply to incoming traffic only. 
OUT-apply to outgoing traffic only. 
BOTH- apply to both incoming and outgoing traffic. 
Index 
The group index number of QoS Control settings. There are 
total 4 groups.   
Class Name 
Define the name for the group index. 
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
Setup 
There are two-level of settings: 
Basic - setup Reserved Bandwidth Ratio according to the 
traffic service type. We provide a list of common service 
types. 
Advance - custom setting of Reserved Bandwidth Ratio based 
on the source address, destination address, DiffServ 
CodePoint, and service type.