Which Prime Infrastructure Report Troubleshoots VoWiFi Connectivity?
Short answer
B Run the Traffic Stream Metrics report in Cisco Prime Infrastructure to inspect VoWiFi QoS metrics such as jitter, packet loss, and latency.
Question
Key Takeaways
This question tests which Cisco Prime Infrastructure report provides per-stream voice QoS data for VoWiFi troubleshooting, and the trap is selecting generic 802.11 counters or AP status reports instead of Traffic Stream Metrics.
Cisco Prime Infrastructure's Traffic Stream Metrics report is the tool for diagnosing VoWiFi client connectivity because it exposes per-stream voice QoS metrics. This page confirms why option B is correct over generic 802.11 Counters or Up/Down Statistics.
Common mistake: The most common wrong answer is D, 802.11 Counters, because engineers assume generic wireless error counters will reveal VoWiFi connectivity problems, but those counters lack the per-stream jitter, latency, and packet-loss data needed for voice.
Expert Analysis
Why the Answer Is Correct
Traffic Stream Metrics (TSM) in Cisco Prime Infrastructure is purpose-built for voice-over-Wi-Fi troubleshooting. It reports per-stream QoS measurements such as jitter, packet loss, and latency, which are the decisive indicators for VoWiFi call quality and connectivity. As rrahim notes, these metrics are "critical for diagnosing VoWiFi issues." robi1020 also explains that the report provides "detailed information about traffic streams" related to QoS. Therefore option B directly matches the engineer's need.
Why the Other Options Are Wrong
A, Up/Down Statistics, shows device or interface availability, not voice stream performance. C, Airtime Fairness Statistics, addresses airtime allocation and throughput fairness rather than VoWiFi call diagnostics. D, 802.11 Counters, shows generic MAC/PHY counters such as retries and CRC errors; while useful for wireless troubleshooting, it does not provide the per-stream voice QoS metrics required here.
Community Comment Notes
The community consensus in the comments is uniformly B. robi1020 highlights QoS-related traffic stream metrics for real-time applications, and rrahim specifically names jitter, packet loss, and latency as critical for VoWiFi diagnosis. largestyle supplies a Cisco Prime Infrastructure reports guide link, reinforcing that the relevant PI report documentation should be checked. No commenter argues for A, C, or D.
Official Reference
This link opens the official vendor documentation in a new tab.
Exam Strategy
For VoWiFi troubleshooting questions, look for the report that exposes voice-specific QoS metrics rather than generic wireless counters. In Cisco Prime Infrastructure, Traffic Stream Metrics is the report tied to jitter, latency, and packet loss for real-time voice streams.
Frequently Asked Questions
Why is the 802.11 Counters report not the right choice for VoWiFi?
What does the Traffic Stream Metrics report show in Cisco Prime Infrastructure?
Community Votes
100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 3 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 3
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robi1020 👍 2 Answered BThe Traffic Stream Metrics report in Cisco Prime Infrastructure provides detailed information about traffic streams, including metrics related to quality of service (QoS), packet loss, latency, and jitter. These metrics are crucial for evaluating the performance of real-time applications such as voice calls over Wi-Fi.
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rrahim 👍 1 Answered BTo troubleshoot client connectivity issues for a VoWiFi (Voice over Wi-Fi) network, an engineer should run the Traffic Stream Metrics report in Cisco Prime Infrastructure (PI). This report provides detailed information about the quality of service (QoS) for voice traffic, including metrics such as jitter, packet loss, and latency, which are critical for diagnosing VoWiFi issues.
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largestyle 👍 1https://content.cisco.com/chapter.sjs?uri=/searchable/chapter/www.cisco.com/content/en/us/td/docs/net_mgmt/prime/infrastructure/2-1/user/guide/pi_ug/reps.html.xml
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