Licensing Requirements; Prerequisites For Classification; Guidelines And Limitations - Cisco Nexus 7000 Series Configuration Manual

Nx-os quality of service configuration guide
Hide thumbs Also See for Nexus 7000 Series:
Table of Contents

Advertisement

Configuring Classification

Licensing Requirements

The QoS feature does not a require license. Any feature not included in a license package is bundled with the
Cisco NX-OS system images and is provided at no extra charge to you.
Using virtual device contexts (VDCs) requires an Advanced Services license.
For a complete explanation of the Cisco NX-OS licensing scheme, see the Cisco NX-OS Licensing Guide.

Prerequisites for Classification

Classification has the following prerequisites:
• You must be familiar with the concepts in "Using Modular QoS CLI".
• You are logged on to the switch.
• You are in the correct VDC. A VDC is a logical representation of a set of system resources. You can use

Guidelines and Limitations

Classification has the following configuration guidelines and limitations:
• You can specify a maximum of 1024 match criteria in a class map.
• You can configure a maximum of 4096 classes for use in a single policy map.
• When you match on an ACL, the only other match you can specify is the Layer 3 packet length in a
• The match-all option in the class-map type qos match-all command is not supported. The match criteria
• You can classify traffic on Layer 2 ports based on either the port policy or VLAN policy of the incoming
• The match cos command is not supported in the egress direction.
• If a QoS policy is configured with one type of match criteria, a different type of match criteria cannot
• When you display the queuing statistics, the statistics for cbqosmib is shown per action, not per class
the switchto vdc command with a VDC number.
match-all class.
of this command becomes the same as in the class-map type qos match-any command. The class-map
type qos match-all command yields the same results as the class-map type qos match-any command.
packet but not both. Either the port policy or the VLAN policy takes effect but not both. If both are
present, the device acts on the port policy and ignores the VLAN policy.
be used. The following error message will be returned:
ERROR: Unable to perform the action due to incompatibility:
Module 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 15, 16, 17, 18 returned status
"Policies with classes containing combined 'match dscp', 'match cos',
'match precedence' or 'match qos-group' are not supported.
Only the same match type is supported between classes.
level.
Cisco Nexus 7000 Series NX-OS Quality of Service Configuration Guide
Licensing Requirements
31

Advertisement

Table of Contents
loading

Table of Contents