Cisco Nexus 5500 Series NX-OS - Configuring No-Drop Policy Maps

PurposeCommand or Action
Configures one or more qos-group values to match for
classification of traffic into this class map. The range of
qos-group-values is from 2 to 5. There is no default value.
The Cisco Nexus 5000 Series switch can only
support a maximum of five qos-groups within this
range.
Note
switch(config-pmap-c-qos)# set
qos-group qos-group-value
Step 4
Exits qos configuration mode and enters policy-map mode.switch(config-pmap-c-qos)# exit
Step 5
To add a reference to the system default class that does not
match any traffic class, use the class class-default command.
switch(config-pmap-qos)# class
class-default
Step 6
This example shows how to define a QOS policy map.
switch# configure terminal
switch(config)# policy-map type qos c1
switch(config-pmap-qos)# class c1
switch(config-pmap-c-qos)# set qos-group 2
switch(config-pmap-c-qos)# exit
switch(config-pmap-qos)# class class-default
Configuring No-Drop Policy Maps
Procedure
PurposeCommand or Action
Enters global configuration mode.switch# configure terminal
Step 1
Creates a named object that represents a class of traffic.
Class-map names can contain alphabetic, hyphen, or underscore
characters, are case sensitive, and can be up to 40 characters.
switch(config)# class-map type
{network-qos | queuing}
class-name
Step 2
Configures the traffic class by matching packets based on a list
of QoS group values. Values can range from 0 to 5. QoS group
switch(config-cmap-nq)# match
qos-group qos-group-value
Step 3
0 is equivalent to class-default and QoS group 1 is equivalent to
class-fcoe.
qos-groups 0 and 1 are reserved for default classes and
cannot be configured.
Note
Exits class-map mode and enters global configuration mode.switch(config-cmap-nq)# exit
Step 4
Creates a named object that represents a set of policies that are
to be applied to a set of traffic classes. Policy-map names can
switch(config)# policy-map
type network-qos policy-name
Step 5
contain alphabetic, hyphen, or underscore characters, are case
sensitive, and can be up to 40 characters.
Cisco Nexus 5500 Series NX-OS SAN Switching Configuration Guide, Release 7.x
OL-30895-01 205
Configuring iSCSI TLV
Configuring No-Drop Policy Maps