802.1P Tag Priority Mode - Planet FSD-804PS User Manual

4.6.1 802.1p Tag Priority Mode

QoS settings allow customization of packet priority in order to facilitate delivery of data traffic that might be affected by
latency problems. When 802.1p Tag Priority is applied, the PoE Switch recognizes 802.1Q VLAN tag packets and extracts
the VLAN tagged packets with User Priority value.
802.1Q Tag and 802.1p priority
TPID (Tag Protocol Identifier)
Destination
Preamble
Address
6 bytes
The IEEE 802.1p Tag Priority specification uses 2 priority levels to classify data packets. The screen in
pears.
The page includes the following fields:
• Object
• QoS Mode
User Priority
3 bits
TCI (Tag Control Information)
2 bytes 2 bytes
Source Ad-
VLAN TAG
dress
6 bytes 4 bytes
Figure 4-36 802.1p Tag Priority
Figure 4-37 QoS - 802.1p Tag Priority screen
• Description
The draw menu allows customization of QoS mode for Traffic classifiers.
• 802.1p Tag Priority
• IP DSCP
• Port-Base Priority
CFI VLAN ID (VID)
1 bits 12 bits
Ethernet
Data
Type
2 bytes 46-1517 bytes
User's Manual of FSD-804PS
FCS
4 bytes
Figure 4-37 ap-
- 50 -