Configuring Priority - Cisco Nexus 7000 Series Configuration Manual

Configuring Queuing and Scheduling on M-Series I/O Modules
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7

Configuring Priority

If you do not specify the priority, the system-defined egress pq queues behave as normal queues. For information
on the system-defined type queuing class maps, see "Using Modular QoS CLI."
You can configure only one level of priority on an egress priority queue. You use the system-defined priority
queue class for the type of module to which you want to apply the policy map. For the list of available
system-defined class maps for each module, see
15.
For the nonpriority queues, you can configure how much of the remaining bandwidth to assign to each queue.
By default, the device evenly distributes the remaining bandwidth among the nonpriority queues.
Note
When a priority queue is configured, the other queues can only use the remaining bandwidth in the same
policy map.
Command or Action
switch(config)# policy-map type queuing
[match-first] {policy-map-name |
que-dynamic}
switch(config)# class type queuing
class-queuing-name
switch(config-pmap-c-que)# bandwidth {rate
[bps | kbps | mbps | gbps] | percent}
• bandwidth remaining percent percent
Assigns the percentage of the bandwidth
that remains to this queue. The range is
from 0 to 100.
switch(config-pmap-c-que)# exit
(Optional) switch(config)# show policy-map
type queuing [policy-map-name |
que-dynamic]
(Optional) switch(config)# copy
running-config startup-config
Cisco Nexus 7000 Series NX-OS Quality of Service Configuration Guide
Purpose
Configures the policy map of type queuing, and
then enters policy-map mode for the policy-map
name that you specify. Policy-map names can
contain alphabetic, hyphen, or underscore
characters, are case sensitive, and can be up to
40 characters.
Configures the class map of type queuing, and
then enters policy-map class queuing mode.
Assigns a minimum rate of the interface
bandwidth to an output queue. You can
configure a data rate by the bit rate or as the
percentage of the underlying interface link rate.
The default units are kbps. The data rate is from
1 to 10,000,000,000. The percentage range is
from 1 to 100.
You can use only the percent keyword for
interfaces set to autonegotiate.
Repeat Steps 3 to 4 to assign bandwidth or
bandwidth remaining for other queuing classes.
Exits policy-map queue mode, and enters global
configuration mode.
Displays information about all configured
policy maps or a selected policy map of type
queuing.
Saves the running configuration to the startup
configuration.
Table 6: System-Defined Type queuing Class Maps, on page
Configuring Priority
105