Guidelines And Limitations; Configuring Mutation Mapping - Cisco Nexus 7000 Series Configuration Manual

Configuring Mutation Mapping

Guidelines and Limitations

Mutation mapping has the following configuration guidelines and limitations:
• You use a hierarchical policy for mutation mapping. Hierarchical policies are not supported for any other
• The device supports only one level of hierarchy.
• You can configure up to 14 table maps for use in ingress interfaces and up to 15 table maps for use in
• Before you delete a referenced policy map, you must first remove all references to that policy map.
• You can use only like parameters (for example, cos-cos) when you create a mutation map. Mutation
• On Layer 2 ports, hierarchial QoS policies are not applicable on ingress for Cisco Nexus M3 series
Configuring Mutation Mapping
To configure mutation mapping, you create a hierarchical policy map that uses the class-default traffic class
to capture all packets and apply mutation mapping to them. You use the service-policy command to specify
the policy map to apply with mutation mapping.
Note You can set only similar values when you create a mutation map. For example, you can set cos-cos or dscp-dscp;
you cannot set cos-dscp or dscp-precedence.
To configure mutation mapping:
1. Create the policy map to apply in the mutation mapping hierarchical policy. For information about
configuring policy maps, see "Configuring Policing" or "Configuring Queuing and Scheduling."
2. Create the table map to use in the mutation mapping hierarchical policy. For information about configuring
table maps, see the "Configuring Marking Using Table Maps" section.
3. Configure the mutation mapping hierarchical policy as described in this section.
4. Apply the service policy to the interface. For information about attaching policies to interfaces, see "Using
Modular QoS CLI."
Procedure
Step 1
use.
egress interfaces.
maps with dissimilar types (for example, cos-dscp) are not supported.
modules and Cisco Nexus F4 series modules.
Command or Action
switch# configure terminal
Purpose
Enters global configuration mode.
Cisco Nexus 7000 Series NX-OS Quality of Service Configuration Guide
Guidelines and Limitations
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