Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring QoS (Rev. 03)
Overview
© 2008 Foundry Networks, Inc.
Page 20 of 62
Table 9: Priority Mapping Commands
Command
Description
qos map
Assigns 802.1p priority level to the Transmit-Queue mapping.
show qos
priority-txq-map
Displays the priority mapping assignments.
Configuring Priority Value Mapping to QoS Queues
The
qos map
command, in Global Configuration mode, assigns 802.1p priority level to the
Transmit-Queue mapping.
Table 5
shows the default mapping of priority levels to the eight transmit queues.
Command Syntax
device-name
(config)#
qos map
<
priority
>
{
txq0
|
txq1
|
txq2
|
txq3 txq4
|
txq5
|
txq6
|
txq7
}
Argument Description
priority
The 802.1p priority level in range <0-7>.
txq0
Transmit queue 0.
txq1
Transmit queue 1.
txq2
Transmit queue 2.
txq3
Transmit queue 3.
txq4
Transmit queue 4.
txq5
Transmit queue 5.
txq6
Transmit queue 6.
txq7
Transmit queue 7.
Example
The default mapping of 802.1p priority level 3 is txq3. In the following example, we change the
mapping of priority level 3 to txq2, and verify the change with the
show qos priority-txq-map
command.
device-name
(config)#
qos map 3 txq2
device-name
(config)#
exit
device-name
#
show qos priority-txq-map
===============================
priority-level | txq
-----------------+-------------
0 | 0
1 | 1
2,3 | 2
| 3
4 | 4
5 | 5
6 | 6
7 | 7