Draytek Vigor2710 Series User Manual page 188

per-hop-behavior (PHB). The definition of PHB includes Expedited Forwarding (EF),
Assured Forwarding (AF), and Best Effort (BE). AF defines the four classes of delivery (or
forwarding) classes and three levels of drop precedence in each class.
Vigor routers as edge routers of DS domain shall check the marked DSCP value in the IP
header of bypassing traffic, thus to allocate certain amount of resource execute appropriate
policing, classification or scheduling. The core routers in the backbone will do the same
checking before executing treatments in order to ensure service-level consistency throughout
the whole QoS-enabled network.
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.
This page displays the QoS settings result of the WAN interface. Click the Setup link to
access into next page for the general setup of WAN interface. As to class rule, simply click
the Edit link to access into next for configuration.
You can configure general setup for the WAN interface, edit the Class Rule, and edit the
Service Type for the Class Rule for your request.
O n l i n e
O n l i n e
Display an online statistics for quality of service for your reference. This feature is available
only when the Quality of Service for WAN interface is enabled.
Vigor2710 Series User's Guide
S t a t i s t i c s
S t a t i s t i c s
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