Cisco Nexus 5000 Series - Creating the System Service Policy

Send feedback to nx5000-docfeedback@cisco.com
1-11
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
OL-16597-01
Chapter 1 Configuring QoS
Configuring System Classes
Note The switch distributes all the policy map configuration values to the attached network adapters.
Note Policy maps can also be configured for interface service policies. However, different parameters are
supported in these policy maps. See the “Configuring QoS on Interfaces” section on page 1-13.
The following example shows how to enable optimized multicast for the default Ethernet class:
switch(config)# policy-map s1
switch(config-pmap)# class class-default
switch(config-pmap-c)# multicast-optimize
The following example shows how to create a policy map with a no-drop Ethernet class:
switch(config)# class-map ethCoS4
switch(config-cmap)# match cos 4
switch(config-cmap)# exit
switch(config)# policy-map ethNoDrop
switch(config-pmap)# class ethCoS4
switch(config-pmap-c)# pause no-drop
Creating the System Service Policy
The service-policy command is used to associate the system class policy-map as the service policy for
the system.
The following example sets a no-drop Ethernet policy map as the system class:
switch(config)# class-map ethCoS4
switch(config-cmap)# match cos 4
Step 5
switch(config-pmap-c)# mtu value
(Optional) Specifies the MTU value in bytes.
Step 6
switch(config-pmap-c) bandwidth percent
percentage
(Optional) Specifies the guaranteed percentage of
interface bandwidth allocated to this class.
Step 7
switch(config-pmap-c) priority
(Optional) Specifies that traffic in this class is mapped
to a strict priority queue.
Step 8
switch(config-pmap-c) multicast-optimize
(Optional) Enables multicast optimization. Multicast
traffic in this class will be served by all available
multicast queues.
Note Only one class in a policy map can be
configured for multicast optimization.
Command Purpose
Command Purpose
Step 1
switch# configure terminal
Enters configuration mode.
Step 2
switch(config)# system qos
Enters system class configuration mode.
Step 3
switch(config-sys-qos)# service-policy
name
Specifies the policy-map to use as the service policy
for the system.