Enabling Qos Globally; Initial Mapping To Queue Based On Tag - Allied Telesis AlliedWare Plus Overview

Enabling QoS globally

Before configuring QoS, you need to enable it by entering the following command in global
configuration mode:

Initial mapping to queue based on tag

When packets arrive at a port, they are assigned to an egress queue. This is done by the
switch associating an egress queue marker with the packet. For tagged packets, the switch
decides the initial queue setting by looking at the packet's CoS value (802.1p User Priority
field). For untagged packets, there is a default queue setting, which you can change.
Of course, this is just an initial egress queue value—the QoS processing can change it at the
Premarking
Tagged For tagged packets, the default mapping of packet CoS value to egress queue is:
packets
CoS:
Queue:
To change this mapping for a CoS value, enter the following command in global configuration
mode:
You need to enter this command for every CoS that you want to re-map.
To see the mapping, use the following command:
Untagged For untagged packets, the switch determines the queue by looking at the value of the mls
packets qos queue command. This is an interface-mode command, so the queue is set on a per-port
basis. The default value is 2.
To change this, first enter interface mode for the desired port and then specify the desired
queue number. Use the following commands:
For example, to set the initial queue to 5 for untagged packets received on port1.0.1, use the
commands:
Untagged packets are also assigned a CoS value, 0 by default. To change this, first enter
interface mode for the desired port and then specify the desired CoS. Use the following
commands:
Page 12 | AlliedWare Plus™ OS: Overview of QoS
awplus(config)#mls qos enable
(page 13) or Remarking
1
0 2
1 1
2
awplus(config)#mls qos map cos-queue <cos> to <queue>
awplus#show mls qos maps cos-queue
awplus(config)#interface <port-number>
awplus(config-if)#mls qos queue <0-7>
awplus(config)#interface port1.0.1
awplus(config-if)#mls qos queue 5
(page 22) stages.
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