Qos Mode - Planet GSW-1602SF User Manual

4.9.3 802.1p QoS 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 Web Smart 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 Priority specification uses 8 priority levels to classify data packets. The screen in
4-72 appears.
User Priority
3 bits
TCI (Tag Control Information)
2 bytes
Source
VLAN TAG
Address
6 bytes 4 bytes
Figure 4-71 802.1p QoS Configuration screen
User's Manual of GSW-1602SF / GSW-2404SF
CFI VLAN ID (VID)
1 bits 12 bits
2 bytes
Ethernet
Data
Type
2 bytes 46-1517 bytes
-99-
FCS
4 bytes
Figure 4-71 and Figure