18.
Quality of Service
MN700004 Rev 01
221
device-name
(config)#qos remark 3 txq1
device-name
(config)#qos remark 5 txq2
device-name
(config)#exit
device-name
#show qos priority-txq-map remark
=================================
priority-level | txq
----------------+----------------
0 | 0
3 | 1
5 | 2
3 | 3
4 | 4
5 | 5
6 | 6
7 | 7
Displaying the Mapping Assignments
The
show qos priority-txq-map
command, in Privileged (Enable) mode, displays the priority
mapping. When the argument
remark
is in use the command will display the reassigned
priority level (for re-marking) per each output queue. Otherwise, the command will display
the general priority to output queue map.
Command Syntax
device-name
#
show qos priority-txq-map
[
remark
]
QoS Assignment Configuration Commands
Table 18-5 lists the commands to configure the priority assignment.
Table 18-5 Priority Assignment Configuration Commands
Command
Description
qos priority
Assigns a priority value that can override the 802.1p priority levels for
incoming frames.
qos mac
Assigns QoS priority level manually for destination MAC address (per
VLAN).
qos drop-level priority
Specifies the color mark per QoS priority.
qos shaper
Sets the transmit rate for the transmit queue
Replacing 802.1p Priority Information on a Port
The
qos priority
command, in Interface Configuration mode, assigns a priority value that can
override the 802.1p priority levels for incoming frames. The
no
form of this command
restores the port’s priority settings to the default values.
At each port, you can choose to override the 802.1p priority levels by assigning a new value.
Consequently, every incoming frame will obtain the new priority level and then be mapped to
the appropriate output queue according to the 802.1p level-to-queue mapping.
If you choose not to override the 802.1p priority for incoming frames (by using the
no-
override
option), then 802.1p tagged frames will be forwarded according to their own priority
