HP Cisco MDS 9120 Cisco MDS 9000 Family CLI Configuration Guide, Release 3.x ( - Page 1317

Chapter 56 Configuring Fabric Congestion Control and QoS QoS Send documentation comments to [email protected] Note Class maps are processed in the order in which they are configured in each policy map. Specifying Service Policies To specify a service policy, follow these steps: Step 1 Step 2 Step 3 Step 4 Command Purpose switch(config)# qos policy-map MyPolicy switch(config-pmap)# Creates a policy map called MyPolicy and places you in the policy-map submode. switch(config)# no qos policy-map OldPolicy Deletes the policy map called OldPolicy and places switch(config)# you in the policy-map submode. switch(config-pmap)# class MyClass switch(config-pmap-c)# Specifies the name of a predefined class and places you at the policy-map submode for that class. switch(config-pmap)# no class OldClass Removes the class map called OldClass from the policy map. switch(config-pmap-c)# priority high Specifies the priority to be given for each frame matching this class. switch(config-pmap-c)# no priority high Deletes a previously assigned priority and reverts to the default value of low. switch(config-pmap-c)# dscp 2 Specifies the DSCP value to mark each frame matching this class. switch(config-pmap-c)# no dscp 60 Deletes a previously assigned DSCP value and reverts to the factory default of 0. About Service Policy Enforcement When you have configured a QoS data traffic policy, you must enforce the data traffic configuration by applying that policy to the required VSAN(s). If you do not apply the policy to a VSAN, the data traffic configuration is not enforced. You can only apply one policy map to a VSAN. Note You can apply the same policy to a range of VSANs. Applying Service Policies To apply a service policy, follow these steps: Step 1 Command switch(config)# qos service policy MyPolicy vsan 3 switch(config)# no qos service policy OldPolicy vsan 7 Purpose Applies a configured policy to VSAN 3. Deletes a configured policy that was applied to VSAN 7. OL-16184-01, Cisco MDS SAN-OS Release 3.x Cisco MDS 9000 Family CLI Configuration Guide 56-9