Enabling Roaming Recommendations for VoWLAN Clients
A customer has a Cisco wireless network that supports VoWLAN services. The customer wants supported voice clients to receive roaming recommendations and suggestions from APs. This functionality must not impact non-VoWLAN clients. What should be enabled on the VoWLAN SSID?
Community Votes
67% of anonymous learners picked answer D. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
The exam tests the distinction between neighbor discovery (802.11k) and active roaming assistance/suggestions (802.11v), with the common trap being the selection of 802.11k which only provides lists rather than direct transition management.
This question addresses the specific IEEE standard used to provide roaming recommendations and suggestions from Access Points to voice clients without impacting other traffic types. The correct configuration enables BSS Transition Management on the VoWLAN SSID.
Candidates often select 802.11k because it provides neighbor lists, but they overlook that 802.11v is specifically required for the 'recommendations' and 'suggestions' aspect of roaming decisions, particularly for seamless handoffs in VoWLAN environments.
Community Discussion (5 comments)
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Expert Analysis
Why the Answer Is Correct
Option D is correct because IEEE 802.11v defines BSS (Basic Service Set) Transition Management, which allows an AP to send steering frames or recommendations to a client suggesting it roam to a different AP. This is crucial for VoWLAN to ensure call continuity by proactively managing the transition before the link degrades, effectively providing the 'roaming recommendations' specified in the scenario.Why the Other Options Are Wrong
Option A (802.11r) handles fast key turnover to reduce latency during roaming but does not provide the initial recommendation or suggestion to roam. Option B (802.11k) provides a neighbor list to help clients find neighboring APs faster, but it is passive information; it does not actively suggest a transition like 802.11v does. Option C (CCKM) is a Cisco proprietary mechanism for faster roaming on WPA-Enterprise networks, but it is largely superseded by standards-based approaches and does not inherently provide the 'recommendation' functionality described.Community Comment Notes
Community consensus strongly favors 802.11v as the correct answer. One user noted that 802.11v is the right choice for this specific requirement. Another comment highlighted that while 802.11k suggests candidate APs, the explicit goal of providing roaming recommendations aligns best with 802.11v capabilities. There was some confusion regarding 802.11k, but the distinction between 'neighbor lists' and 'transition management' clarified the decision.Official Reference
Exam Strategy
When a question mentions 'roaming recommendations', 'steering', or 'transition management', think immediately of 802.11v. If it mentions 'neighbor lists' or 'scan offloading', think 802.11k. Do not confuse the two; 802.11k helps you find neighbors, 802.11v tells you where to go.
Frequently Asked Questions
What is the difference between 802.11k and 802.11v?
802.11k provides neighbor lists to help clients scan efficiently, while 802.11v provides BSS Transition Management to actively recommend or steer clients to better APs.
Does 802.11r support roaming recommendations?
No, 802.11r focuses on fast security key transitions to reduce roaming latency, not on the decision-making process of which AP to roam to.