New and Changed Information

This chapter provides release-specific information for each new and changed feature in the Cisco NX-OS Quality of Service Configuration Guide, Release 4.2. The latest version of this document is available at the following Cisco website:
http://www.cisco.com/en/US/docs/switches/datacenter/sw/4_2/nx-os/qos/configuration/guide/qos_nx-os_book.html

To check for additional information about Cisco NX-OS Release 4.2, see the Cisco NX-OS Release Notes available at the following Cisco website:
http://www.cisco.com/en/US/docs/switches/datacenter/sw/4_2/nx-os/release/notes/42_nx-os_release_note.html

summarizes the new and changed features for the , and tells you where they are documented.

Table 1 New and Changed Features for Release 4.2 

Feature
Description
Changed in Release
Where Documented

Added qos-dynamic variable

The qos-dynamic variable lists already configured class-map and policy-map names.

4.2(1)

Chapter 2 "Using Modular QoS CLI," Chapter 4 "Configuring Marking,"Chapter 5 "Configuring Mutation Mapping,"Chapter 6 "Configuring Policing,"Chapter 7 "Configuring Queuing and Scheduling"

Support for Session Manager

Allows you to verify the configuration and required resources prior to committing them to the running configuration.

4.2(1)

—

Match IPv6 ACLs.

You can now match IPv6, as well as IPv4, addresses.

4.1(2)

Chapter 3 "Configuring Classification"

Only same variable for mutation mapping

You can match only the same variable with different values for mutation mapping.

4.1(2)

Chapter 5 "Configuring Mutation Mapping"

Ignore variable for default command.

The ignore variable is no longer supported for the default command.

4.0(2)

Chapter 4 "Configuring Marking"

Tunnel interfaces

You can apply QoS policies to tunneled interfaces.

4.0(3)

Chapter 2 "Using Modular QoS CLI"

Type queuing default-in-policy

WRR weights changed for default in queuing policy from 50/50 to 80/20.

4.0(3)

Chapter 2 "Using Modular QoS CLI"