Nortel 2350 用户指南
350 Configuring quality of service
NN47250-500 (320657-F Version 02.01)
Figure 2.
QoS on WSSs—marking of egress packets
WSS has classified
Yes
No VLAN tag
Mark 802.1p
1 -> 1
2 -> 2
3 -> 3
4 -> 4
5 -> 5
6 -> 6
7 -> 7
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?
802.1Q VLAN tag?
Egress interface
is IP tunnel?
is IP tunnel?
Transmit packet.
Do not mark DSCP.
Look up CoS and mark
packet’s DSCP value:
packet’s DSCP value:
1 -> 8
2 -> 16
3 -> 24
4 -> 32
5 -> 40
6 -> 48
7 -> 56
2 -> 16
3 -> 24
4 -> 32
5 -> 40
6 -> 48
7 -> 56