NetFlow Export Destinations Limit

300-410 By islever Editorial Last updated

Troubleshoot NetFlow (v9, flexible NetFlow, Ipfix)

Short answer

A Traditional NetFlow is limited to sending flow data to a maximum of two export destinations per cache.

Question

You are configuring Netflow on various network elements in order to gain visibility into the traffic types used. How many export destinations can this Network data be sent to?
  1. Up to 2 Correct Answer
  2. Up to 4
  3. Up to 8
  4. There is no limitation on the number of flow data export destinations.

Key Takeaways

The exam tests knowledge of traditional NetFlow limitations versus Flexible NetFlow scalability; the common trap is assuming modern flexibility applies to the default 'Netflow' terminology used in the question.

This question addresses the maximum number of export destinations supported by standard NetFlow on Cisco IOS devices, establishing that the limit is two.

Common mistake: Many candidates select 'D' (no limitation) because they recall Flexible NetFlow's higher limits or misinterpret general IP SLA capabilities, failing to distinguish between Classic and Flexible NetFlow contexts.

Expert Analysis

Why the Answer Is Correct

In the context of the CCNP Enterprise certification, 'NetFlow' without specific qualification refers to Traditional (Classic) NetFlow. According to Cisco documentation for IOS, a flow cache can send data to a maximum of two export destinations simultaneously. This limitation exists due to resource constraints and design in the original implementation.

Why the Other Options Are Wrong

Options B and C are incorrect because the hard limit for Traditional NetFlow is strictly two, not four or eight. Option D is incorrect because it describes Flexible NetFlow (FNF), which allows up to ten exporters per flow monitor. However, since the question does not specify 'Flexible', the default assumption is the legacy protocol with its stricter two-destination cap.

Community Comment Notes

Community consensus strongly supports Option A, citing official Cisco configuration guides. As noted by user HungarianDish_111, "Original NetFlow is limited to only two export destinations per cache." Another commenter, Kdom07, clarified the distinction: "In this exam context assume 'Traditional' unless specifically stated its 'Flexible'." While user tubirubs argued for no limit, this contradicts the standard interpretation of the term 'NetFlow' in older IOS versions tested by this blueprint.

Official Reference

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/netflow/configuration/15-mt/nf-15-mt-book/get-start-cfg-nflow.html

This link opens the official vendor documentation in a new tab.

Exam Strategy

Always look for keywords like 'Flexible' or 'Advanced' when seeing high numbers for NetFlow features. If the question just says 'NetFlow', assume the baseline Traditional behavior unless the scenario explicitly mentions advanced collectors or flexible monitors.

Frequently Asked Questions

Does Flexible NetFlow have a different limit than Traditional NetFlow?

Yes, Flexible NetFlow supports up to ten exporters per flow monitor, whereas Traditional NetFlow is capped at two.

Why is 'No limitation' incorrect if I can configure multiple collectors?

While you can define multiple collectors, the actual concurrent export capability for a single cache in Traditional NetFlow is restricted to two destinations.

More 300-410 FAQ →

Community Votes

A
72%
d
28%

72% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 10 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 10

  1. Kdom07 👍 5
    The Correct Answer is "A" In Flexible Netflow there is no limit to the number of exporters In Traditional Netflow, its no more than 2 In this exam context assume "Traditional" unless specifically stated its "Flexible"
  2. HungarianDish_111 👍 5
    https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/fnetflow/configuration/xe-16-10/fnf-xe-16-10-book/fnf-output-features.pdf Original NetFlow is limited to only two export destinations per cache.
  3. bk989 👍 2
    • Using flow exporters, you can create an exporter for every type of traffic that you want to analyze so that you can send each type of traffic to a different NetFlow collector. Original NetFlow sends the data in a cache for all of the analyzed traffic to a maximum of two export destinations. • Flow exporters support up to ten exporters per flow monitor. Original NetFlow is limited to only two export destinations per cache https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/fnetflow/configuration/xe-16-10/fnf-xe-16-10-book/fnf-v9-export.pdf
  4. Zizu007 👍 2
    answer is correct: **You can configure a maximum of two export destinations for NetFlow. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/netflow/configuration/15-mt/nf-15-mt-book/get-start-cfg-nflow.html
  5. mitosenoriko 👍 2
    A is correct max is 2
Show 5 more comments
  1. bk989 👍 1
    As for flow exporter we have 1 destination max per exporter. IOU1(config)#flow exporter test IOU1(config-flow-exporter)#destination 1.1.1.1 IOU1(config-flow-exporter)#destination 1.1.1.2 IOU1(config-flow-exporter)#do sh run flow exporter Current configuration: ! ! flow exporter test destination 1.1.1.2 ! IOU1(config-flow-exporter)#
  2. tubirubs 👍 1 Answered D
    For Cisco IOS, there is indeed no fixed limitation on the number of NetFlow export destinations you can configure. You can specify multiple export destinations to ensure that flow data is sent to various collectors for purposes like redundancy, load balancing, or different types of analysis.
  3. Shri_Fcb10 👍 1 Answered A
    A flow monitor can be associated with multiple exporters, but The number of export destinations (collectors) per flow monitor is typically limited to 2
  4. bk989 👍 1
    Answer = A
  5. Mario73 👍 1 Answered A
    It's A.

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