Draytek Vigor3300 Series, Руководство пользователя, Страница: 103 / 213

Vigor3300 Series User’s Guide
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Source IP Specify an IP address for Vigor router to perform IM/P2P
blocking.
Subnet Mask Type the subnet mask for the IP address specified.
Action Choose Allow to make the packet passing through.
Choose Disallow to block the packet in or out.
IM/VoIP/P2P Check the boxes for different applications filtering by this rule.
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The QoS (Quality of Service) guaranteed technology in the Vigor 3300 Series allows the
network administrator to monitor, analyze, and allocate bandwidth for various types of
network traffic in real-time and/or for business-critical traffic. Thus, timing-sensitive
applications will not be impacted by web surfing traffic or other non-critical applications, such
as file transfer. Without QoS-guaranteed control, there would be virtually no way to prioritize
users/services or guarantee allocation of finite bandwidth resources to network or servers for
supporting timing-sensitive and mission-critical network applications, such as VoIP (Voice
over IP) and online gaming applications.
Differentiated quality of service is therefore one of the most important issues over the Internet
infrastructure. In the Vigor 3300 Series, DSCP (Differentiated Service Code Point) support is
also taken into consideration in the design of theQoS-guaranteed control module.
The QoS function handles incoming and outgoing classes independently. Users can configure
incoming or outgoing separately without any impact on the other.