Allied Telesis x900-24 series Manuel de configuration du logiciel - Page 10
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3. Setting the egress queues
In this section we look at methods for directing certain packets into certain queues on the egress
port.
Example 3-1: Setting the egress queue according to the L2 priority of the
incoming packet
The priority-to-queue map is a straightforward method for assigning packets to egress queues on
the basis of the packets' 802.1p values.
Ingress ports 1-20 (these ports MAY be carrying a mixture of packets
from different VLAN packets either with or without VLAN tags)
mls qos enable
mls qos map cos-queue 0 2
mls qos map cos-queue 1 3
mls qos map cos-queue 2 1
mls qos map cos-queue 3 0
mls qos map cos-queue 4 4
mls qos map cos-queue 5 5
mls qos map cos-queue 6 6
mls qos map cos-queue 7 7
interface port1.0.1-port1.0.20
mls qos queue 2
Command
The map cos-queue commands in the above example set the mapping between the VLAN Tag
settings
User Priorities of the packets and the egress queues. Priorities 0 to 7 are mapped to queues 2, 3, 1,
0, 4, 5, 6 and 7 respectively.
The Interface mode command sets the incoming ports to send untagged packets to queue number
2, which means the untagged packets will use the same queue as the tagged packets with a User
Priority of 1.
Page 10 | AlliedWare Plus™ OS How To Note: QoS
Port 24
3. Setting the egress queues