Flexible Netflow Configuration Guide, Cisco IOS Release 15M&T
Flexible NetFlow Integration with MQC
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Contents

Flexible NetFlow: Integration with MQC

Last Updated: October 26, 2012

This module describes the Flexible NetFlow: Integration with MQC feature. Flexible NetFlow supports the creation of flow caches with specific flow information tailored to the various services used in the network. A flow group allows customers to target and see only specific types of traffic and therefore increases the scalability of NetFlow while giving the customer the ability to target and isolate specific types of network behavior or IP applications. Flow groups use a Modular Quality of Service CLI (MQC) filtering and classification applied to a NetFlow cache.

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.

Prerequisites for Flexible NetFlow: Integration with MQC

  • You are familiar with the information in the Flexible NetFlow Configuration Guide.
  • You are familiar with the MQC information in the "Applying QoS Features Using the MQC" module.
  • The networking device must be running a Cisco IOS release that supports Flexible NetFlow.

IPv4 Traffic

  • The networking device must be configured for IPv4 routing.
  • One of the following must be enabled on your router and on any interfaces on which you want to enable Flexible NetFlow: Cisco Express Forwarding or distributed Cisco Express Forwarding.

IPv6 Traffic

  • The networking device must be configured for IPv6 routing.
  • One of the following must be enabled on your router and on any interfaces on which you want to enable Flexible NetFlow: Cisco Express Forwarding IPv6 or distributed Cisco Express Forwarding IPv6.

Information About Flexible NetFlow Integration with MQC

Flexible NetFlow: Integration with MQC Overview

Flexible NetFlow supports the creation of flow caches with specific flow information tailored to the various services used in the network. A flow group allows customers to target and see only specific types of traffic and therefore increases the scalability of NetFlow while giving the customer the ability to target and isolate specific types of network behavior or IP applications. Flow groups use MQC filtering and classification applied to a NetFlow cache.The Flexible NetFlow: Integration with MQC feature integrates FNF with MQC traffic selection and classification technology to support per-flow accounting for a subset of traffic received or sent on an interface or subinterface.

How to Configure Flexible NetFlow Integration with MQC

Configuring Flexible NetFlow: Integration with MQC

To configure the Flexible NetFlow: Integration with MQC feature, perform the following required task.

SUMMARY STEPS

1.    enable

2.    configure terminal

3.    flow record record-name

4.    match ipv4 source address

5.    match ipv4 destination address

6.    match application name

7.    exit

8.    flow monitor monitor-name

9.    description description

10.    exit

11.    sampler sampler-name

12.    exit

13.    class-map class-map-name

14.    exit

15.    policy-map policy-map-name

16.    class class-map-name

17.    flow monitor monitor-name sampler sampler-name

18.    end


DETAILED STEPS
 Command or ActionPurpose
Step 1
enable


Example:

Device> enable

 

Enables privileged EXEC mode.

  • Enter your password if prompted.
 
Step 2
configure terminal


Example:

Device# configure terminal

 

Enters global configuration mode.

 
Step 3
flow record record-name


Example:

Device(config)# flow record FLOW-MONITOR-1

 

Creates a flow record and enters Flexible NetFlow flow record configuration mode.

  • This command also allows you to modify an existing flow record.
 
Step 4
match ipv4 source address


Example:

Router(config-flow-record)# match ipv4 source address

 

Identifies the IPv4 source address as a match criterion.

 
Step 5
match ipv4 destination address


Example:

Router(config-flow-record)# match ipv4 destination address

 

Identifies the IPv4 destination address as a match criterion.

 
Step 6
match application name


Example:

Router(config-flow-record)# match application name

 

Identifies the application name as a match criterion.

 
Step 7
exit


Example:

Router(config-flow-record)# exit

 

Exits Flexible NetFlow flow record configuration mode and returns to global configuration mode.

 
Step 8
flow monitor monitor-name


Example:

Device(config)# flow monitor FLOW-MONITOR-1

 

Creates a flow monitor and enters Flexible NetFlow flow monitor configuration mode.

  • This command also allows you to modify an existing flow monitor.
 
Step 9
description description


Example:

Device(config-flow-monitor)# description Used for basic traffic analysis

 

(Optional) Creates a description for the flow monitor.

 
Step 10
exit


Example:

Router(config-flow-monitor)# exit

 

Exits Flexible NetFlow flow monitor configuration mode and returns to global configuration mode.

 
Step 11
sampler sampler-name


Example:

Device(config)# sampler sm_1

 

Creates a flow sampler and enters Flexible NetFlow sampler configuration mode.

  • This command also allows you to modify an existing flow sampler.
 
Step 12
exit


Example:

Router(config-sampler)# exit

 

Exits Flexible NetFlow sampler configuration mode and returns to global configuration mode.

 
Step 13
class-map class-map-name


Example:

Router(config)# class-map cmap

 

Creates a class to be used with a class map and enters QoS class-map configuration mode.

 
Step 14
exit


Example:

Router(config-cmap)# exit

 

Exits QoS class-map configuration mode and returns to global configuration mode.

 
Step 15
policy-map policy-map-name


Example:

Router(config)# policy-map pmap

 

Specifies the name of the policy map to be created and enters QoS policy-map configuration mode.

 
Step 16
class class-map-name


Example:

Router(config-pmap)# class cmap

 

Specifies the name of the class of the policy to be created and enters QoS policy-map class configuration mode.

 
Step 17
flow monitor monitor-name sampler sampler-name


Example:

Device(config-pmap-c)# flow monitor FLOW-MONITOR-1 sampler sm_1

 

Configures the flow monitor and sampler as a MQC policy map class action.

 
Step 18
end


Example:

Device(config-pmap-c)# end

 

Exits QoS policy-map class configuration mode and returns to privileged EXEC mode.

 

Configuration Examples for Flexible NetFlow Integration with MQC

Example: Configuring Flexible NetFlow: Integration with MQC

The following example displays a sample configuration for the functionality provided by the Flexible NetFlow: Integration with MQC feature: 


enable
configure terminal
flow record rm_1
 match ipv4 source address
 match ipv4 destination address
 match application name
flow monitor mm_1
sampler sm_1
class-map cmap
policy-map pmap
 class cmap
  flow monitor mm_1 sampler sm_1

Additional References

Related Documents

Related Topic

Document Title

Cisco IOS commands

Cisco IOS Master Command List, All Releases

Flexible NetFlow conceptual information and configuration tasks

Flexible NetFlow Configuration Guide

Flexible NetFlow commands

Cisco IOS Flexible NetFlow Command Reference

Standards/RFCs

Standard

Title

No new or modified standards/RFCs are supported by this feature.

--

MIBs

MIB

MIBs Link

None

To locate and download MIBs for selected platforms, Cisco software releases, and feature sets, use Cisco MIB Locator found at the following URL:

http://www.cisco.com/go/mibs

Technical Assistance

Description

Link

The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password.

http://www.cisco.com/cisco/web/support/index.html

Feature Information for Flexible NetFlow: Integration with MQC

The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.

Table 1Feature Information for Flexible NetFlow: Integration with MQC
Feature Name Releases Feature Information

Flexible NetFlow: Integration with MQC

15.2(4)M

15.3(1)T

Flexible NetFlow supports the creation of flow caches with specific flow information tailored to the various services used in the network. A flow group allows customers to target and see only specific types of traffic and therefore increases the scalability of NetFlow while giving the customer the ability to target and isolate specific types of network behavior or IP applications. Flow groups use MQC filtering and classification applied to a NetFlow cache.

The following commands were introduced or modified: flow monitor.

Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)

Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.

© 2012 Cisco Systems, Inc. All rights reserved.