3Com WX4400 3CRWX440095A - Manual (Page 333)

WMM QoS Mode 333
Figure 25 QoS on WX Switches—Marking of Egress Packets
WX has classified
Yes
No VLAN tag
Mark 802.1p
1 -> 1
2 -> 2
3 -> 3
4 -> 4
5 -> 5
6 -> 6
7 -> 7
with CoS value:
Yes
No
ingress packet.
Egress interface has
802.1Q VLAN tag?
Egress interface
is IP tunnel?
Transmit packet. Do not mark DSCP.
Look up CoS and mark
packet’s DSCP value:
1 -> 8
2 -> 16
3 -> 24
4 -> 32
5 -> 40
6 -> 48
7 -> 56