GE GE-DSH-73, Руководство пользователя

Страница: 112 / 179

Chapter 5: Web-Based Management
108 GE-DSH-73/DSH-82 and DSH-82-PoE User Manual
Figure 5-51: 802.1p Tag Priority
802.1Q Tag and 802.1p priority
User Priority CFI VLAN ID (VID)
3 bits 1 bits 12 bits
TPID (Tag Protocol
Identifier)
TCI (Tag Control
Information)
2 bytes 2 bytes
Preamble
Destination
Address
Source
Address
VLAN TAG
Ethernet
Type
Data FCS
6 bytes 6 bytes 4 bytes 2 bytes 46-1517 bytes 4 bytes
Set up the COS priority level. With the drop-down selection item of Priority Type above
being selected as COS only/COS first, this control item will then be available to set the
queuing policy for each port.
Figure 5-52: QoS Configuration - COS Priority
This page includes the following fields:
Object Description
COS priority: Set up the COS priority level 0~7—High, Middle, Low, Lowest.
NOTE: 802.1p Priority: Priority classifiers of the Switch forward packet. COS range is
from 0 to 7. Seven is the high class. Zero is the less class. The user may configure the
mapping between COS and Traffic classifiers.