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

Flexible NetFlow: Integration with MQC

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 1 Feature 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.