4RF Aprisa XE, Руководство пользователя

Страница: 83 / 272

Configuring the traffic interfaces | 82
Quality of Service
Quality of Service (QoS) enables network operators to classify traffic passing through the Ethernet
switch into prioritized flows.
Each port can have a priority tag set at the ingress port, or it can be read directly from the Ethernet
traffic. When read directly from the Ethernet traffic, the following fields are used to determine the
traffic’s QoS priority.
ƒ The IEEE 802.1p Priority information in the IEEE 802.3ac Tag.
ƒ The IPv4 Type of Service field.
ƒ The IPv6 Traffic Class field.
You can select one of two queuing methods:
ƒ IEEE 802.1p standard method
ƒ Cisco-proprietary method
The queuing method determines how the traffic is prioritized.
Each port has four egress queues (queues 0-3) of differing priorities. Queue 0 is the lowest priority and
Queue 3 is the highest priority.
Configuring the Ethernet switch for QoS
1.
Select Link or Local or Remote > Interface > Ethernet Settings.
2.
In the Quick Links box at the bottom of the page, click Ethernet General Settings.
The Ethernet General Settings page appears:
3.
Leave Ethernet Grouping set to 'Disabled' (unless you want to enable VLAN tagging).