The correct interpretation of this output is that NetFlow export is functioning successfully, as indicated by the 1234 flows exported in 567 UDP datagrams with zero failures or drops across all categories. This conclusion is drawn from the key statistics in the show ip flow export command: the counters for failed exports, dropped packets due to no FIB, adjacency issues, fragmentation failures, and encapsulation fixup failures all show zero, confirming that every flow record was properly encapsulated and sent to the collector at 192.168.1.100 on port 2055 using source IP 10.0.0.1. On the Cisco CCNP ENARSI 300-410 exam, this command tests your ability to verify NetFlow export health and troubleshoot silent failures—a common trap is to overlook the "0 flows failed" line and assume success based only on seeing a destination address. Remember the memory tip: "All zeros in the failure rows means the flow goes."
300-410 NetFlow and Flexible NetFlow Practice Question
This 300-410 practice question tests your understanding of netflow and flexible netflow. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A network engineer runs the following command to verify NetFlow export destination:
R1# show ip flow export
Flow export v9 is enabled for main cache
Export source and destination details :
VRF ID : Default
Destination(1) 192.168.1.100 (2055)
Source IP 10.0.0.1
Origin AS 65000
Peer AS 65001
Mask for source 255.255.255.255
Mask for destination 255.255.255.255
Version 9 flow records
1234 flows exported in 567 udp datagrams
0 flows failed due to lack of export packet
0 export packets were sent up to process level
0 export packets were dropped due to no fib
0 export packets were dropped due to adjacency issues
0 export packets were dropped due to fragmentation failures
0 export packets were dropped due to encapsulation fixup failures
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
NetFlow export is successful with 1234 flows exported and no errors.
The output shows that NetFlow export is working correctly. It is exporting version 9 flows to destination 192.168.1.100 on port 2055, using source IP 10.0.0.1. There are no failures or drops, indicating successful export.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
NetFlow export is failing due to adjacency issues.
Why it's wrong here
The counters show 0 drops due to adjacency issues.
✓
NetFlow export is successful with 1234 flows exported and no errors.
Why this is correct
All drop counters are zero, and 1234 flows have been successfully exported.
The output clearly states 'Version 9 flow records'.
✗
The export destination is not configured.
Why it's wrong here
The destination 192.168.1.100:2055 is shown.
Common exam traps
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Trap categories for this question
Command / output trap
The counters show 0 drops due to adjacency issues.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
OSPF neighbours must agree on key parameters.
Router ID selection can affect neighbour relationships and LSDB output.
OSPF cost influences the preferred path.
A route can appear in OSPF information but not become the installed route.
TExam Day Tips
→Check area mismatch first when OSPF adjacency fails.
→Review passive interfaces when a network is advertised but no neighbour forms.
→Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
How this comes up in practice
A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 300-410 question in full detail.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 300-410 OSPF questions on adjacency and route selection.
NetFlow and Flexible NetFlow — This question tests NetFlow and Flexible NetFlow — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: NetFlow export is successful with 1234 flows exported and no errors. — The output shows that NetFlow export is working correctly. It is exporting version 9 flows to destination 192.168.1.100 on port 2055, using source IP 10.0.0.1. There are no failures or drops, indicating successful export.
What should I do if I get this 300-410 question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 300-410 OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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