Black Box LB522A-KIT, Руководство пользователя

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Web Configuration
VLAN Tag Priority uses the tag field information that has been inserted into an Ether-
net frame. If a port has an 802.1Q-compliant device attached (such as this Ethernet
Extender), these tagged frames can carry VLAN membership information.
Figure 30.
IEEE 802.1Q Tagged Frame for Ethernet
Priority defines the user priority level for different classes of traffic. There are 8 possi-
ble priority levels, with 0 being the lowest priority level and 7 being the highest level.
Each Priority level can be set queue from 0 to 3.
Scheduling Configuration. The LB52xA-KIT provides three combinations of four
commonly used techniques: Type 1, Type 2 and Type 3. Select a type in the Schedul-
ing Configuration section, then provide details in the corresponding table.
If you select Type 1, refer to “WRR Configuration” on page 48.
If you select Type 2 or Type 3, refer to “WFQ Configuration” on page 48.
Table 8:
VLAN Tag Priority Levels
Priority Level Traffic Type
0 (default) Best Effort
1 Background
2 Spare
3 Excellent Effort
4 Controlled Load
5 Video, less than 100 milliseconds latency and jitter
6 Voice, less than 10 milliseconds latency and jitter
7 Network Control