Automatic Priority Queue Assignment - ZyXEL Communications AMG1302-T series User Manual

10.6.3 Automatic Priority Queue Assignment

If you enable QoS on the AMG1302/AMG1202-TSeries, the AMG1302/AMG1202-TSeries can
automatically base on the IEEE 802.1p priority level, IP precedence and/or packet length to assign
priority to traffic which does not match a class.
The following table shows you the internal layer-2 and layer-3 QoS mapping on the AMG1302/
AMG1202-TSeries. On the AMG1302/AMG1202-TSeries, traffic assigned to higher priority queues
gets through faster while traffic in lower index queues is dropped if the network is congested.
Table 47 Internal Layer2 and Layer3 QoS Mapping
PRIORITY
QUEUE
0
1
2
3
4
5
6
7
AMG1302/AMG1202-TSeries User's Guide
LAYER 2 LAYER 3
IEEE 802.1P USER
PRIORITY TOS (IP
(ETHERNET PRECEDENCE)
PRIORITY)
1 0
2
0 0
3 1
4 2
5 3
6 4
5
7 6
7
Chapter 10 Quality of Service (QoS)
IP PACKET
DSCP
LENGTH (BYTE)
000000
000000 >1100
001110 250~1100
001100
001010
001000
010110
010100
010010
010000
011110 <250
011100
011010
011000
100110
100100
100010
100000
101110
101000
110000
111000
149