New and Changed Information

This chapter provides release-specific information for each new and changed feature in the Cisco Nexus 7000 Series NX-OS Quality of Service Command Reference, Release 5.x. The latest version of this document is available at the following Cisco website:
http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/qos/configuration/guide/nx-os_qos_book.html

To check for additional information about Cisco NX-OS Release 5.x, see the Cisco NX-OS Release Notes, which is available at the following Cisco website:
http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/release/notes/51_nx-os_release_note.html

Table 1 summarizes the new and changed features for the Cisco Nexus 7000 Series NX-OS Quality of Service Configuration Guide, Release 5.x, and tells you where they are documented.

Table 1 New and Changed Features for Release 5.x
Feature
Description
Changed in Release
Where Documented

Network QoS policy

You can now configure a network qos policy, which defines the characteristics of each CoS that is applicable network wide, across virtual device contexts (VDCs), and switches.

5.1(1)

Chapter 8, “Configuring Network QoS” and Chapter 9, “Configuring Queuing and Scheduling on F1 Series Modules”

Priority flow control (PFC)

You can now configure PFC, which prevents frame loss that is due to congestion.

5.1(1)

Chapter 10, “Configuring Priority Flow Control”

Fabric Extender (FEX) support

You can now configure QoS policies on the FEX interfaces.

5.1(1)

Chapter 1, “Overview”

Match IPv6 ACLs.

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

4.1(2)

Chapter 2, “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”

Added qos-dynamic variable

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

4.2(1)

“Using Modular QoS CLI,” “Configuring Marking,”“Configuring Mutation Mapping,”“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)

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