Configure Data Center Bridging (DCB) (optional) 
 
 
13 Dell EMC Networking S4148-ON and S4128-ON Switch Configuration Guide for Dell EMC SC Series SANs | SCG3704 
3.5  Create QOS policy map with dot1p values as trusted 
OS10(config)# policy-map type qos <trust-policy-map-name> 
OS10(config-pmap-qos)# class class-trust 
OS10(config-pmap-c-qos)# trust dot1p 
OS10(config-pmap-c-qos)# exit 
OS10(config-pmap-qos)# exit 
OS10(config)# 
3.6  Create PFC dot1p traffic class 
The following commands configure a network QoS class map and match the iSCSI traffic class.  
OS10(config)# class-map type network-qos <iSCSI-class-map-name> 
OS10 (config-cmap-nqos)# match qos-group 4 
OS10 (config-cmap-nqos)# exit 
OS10(config)# 
3.7  Configure network QoS policy map 
OS10(config)# policy-map type network-qos <policy-map-name> 
OS10(config-pmap-network-qos)# class <iSCSI-class-map-name> 
OS10 (config-pmap-c-nqos)# pause 
OS10 (config-pmap-c-nqos)# pfc-cos 4 
OS10 (config-pmap-c-nqos)# exit 
OS10(config-pmap-network-qos)# exit 
OS10(config)#  
OS10(config)# policy-map type application <qos-policy-map-name> 
OS10(config-pmap-application)# class <qos-class-name> 
OS10 (config-pmap-c-app)# set qos-group 4 
OS10 (config-pmap-c-app)# set cos 4 
OS10 (config-pmap-c-app)# exit 
OS10(config-pmap-application)# exit 
OS10(config)#