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. For the latest caveats and feature information, seeīug Search Tool and the release notes for your platform and software release. Your software release may not support all the features documented in this module. It is emerging as a primary network accounting and security technology. NetFlow is a Cisco IOS application that provides statistics on packets that flow through the router. The Random Sampled NetFlow feature provides NetFlow data for a subset of traffic in a Cisco router by processing only one randomly selected packet out of n sequential packets (n is a user-configurable parameter). For example, you can select flows from a specific group of hosts. The NetFlow Input Filters feature provides NetFlow data for a specific subset of traffic by letting you create filters to select flows for NetFlow processing. The NetFlow Input Filtering and Random Sampled NetFlow features, described in this module, allow you to collect data from specific subsets of traffic. This module contains information about and instructions for selecting the network traffic to track through the use of NetFlow filtering or sampling. Using NetFlow Filtering or Sampling to Select the Network Traffic to Track Feature Information for Using NetFlow Filtering or Sampling to Select Network Traffic to Track.Example Applying a NetFlow Sampler Map to an Interface.Example Configuring Random Sampled NetFlow to Reduce the Impact of NetFlow Data Export.Example Applying a Policy to an Interface.Example Creating a Policy Containing NetFlow Sampling Actions.Example Creating a Sampler Map for a Policy Map for NetFlow Input Filtering.Example Creating a Class Map for a Policy Map for NetFlow Input Filtering.Example Configuring NetFlow Input Filters to Reduce the Impact of NetFlow Data Export.Configuration Examples for Configuring NetFlow Filtering and Sampling.Verifying the Configuration of Random Sampled NetFlow.Applying a NetFlow Sampler Map to an Interface.Configuring Random Sampled NetFlow to Reduce the Impact of NetFlow Data Export.Applying a Policy Containing NetFlow Sampling Actions to an Interface.Creating a Class-Based Policy Containing NetFlow Sampling Actions.Creating a Sampler Map for a Policy Map for NetFlow Input Filtering.Creating a Class Map for a Policy Map for NetFlow Input Filtering.Configuring NetFlow Input Filters to Reduce the Impact of NetFlow Data Export.How to Configure NetFlow Filtering or Sampling.Random Sampled NetFlow The NetFlow Sampler.NetFlow Input Filters Flow Classification.Filtering and Sampling of NetFlow Traffic.Roadmap Using NetFlow Filtering or Sampling to Select the Network Traffic to Track.Information About Using NetFlow Filtering or Sampling to Select Network Traffic to Track.
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