Configuring Video Stream Notifications with Multicast Direct
A company wants to utilize the wireless network to push videos to wireless clients. An engineer has been hired to configure a Cisco WLC to notify users when it cannot provide a video stream while using the Multicast Direct Feature. Which setting must be enabled for this functionality?
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 question tests the specific behavior of the Multicast Direct feature, where the common trap is confusing administrative alerts (SNMP/Northbound) with the client-facing notification mechanism (Session Announcement State).
This question explores the configuration of Cisco WLC Multicast Direct (802.11v M-to-U) specifically regarding user notifications for stream failures. It establishes that Session Announcement State is the required setting to alert users when a video stream cannot be provided.
Many candidates incorrectly select Northbound Notification, assuming it handles all system notifications; however, this option is designed for sending data to external management platforms, not for notifying wireless clients directly.
Community Discussion (3 comments)
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Expert Analysis
Why the Answer Is Correct
Multicast Direct allows the WLC to convert multicast video streams into unicast streams for better delivery to wireless clients. According to Cisco documentation, enabling Session Announcement State allows the controller to generate and send announcement messages to clients. This includes notifying them when the WLC cannot provide the requested video stream due to network constraints like bandwidth limits or excessive load.Why the Other Options Are Wrong
Northbound Notification (Option B) is used to send events to external systems like Cisco Catalyst Center or third-party NMS, not to notify end-user devices. SNMP Trap Log (Option A) is an internal logging mechanism for administrators to monitor controller status, not a client-facing feature. Message of the Day (Option C) is a static banner displayed during login or association, unrelated to dynamic video streaming states.Community Comment Notes
Community discussion highlights the confusion between administrative notifications and client notifications. As noted by rrahim, while Northbound Notification sends alerts to external systems, Session Announcement State is the specific mechanism for client-side feedback regarding stream availability. Another user pointed out that without Session Announcement State, clients may experience silent failures in video playback.Official Reference
Exam Strategy
When configuring video streaming features, distinguish between 'internal/log' notifications (SNMP) and 'client-facing' notifications (Session Announcement). Always check if the requirement is to inform the administrator or the end-user device.
Frequently Asked Questions
What is the difference between Northbound Notification and Session Announcement State?
Northbound Notification sends alerts to external management systems (NMS), while Session Announcement State sends notifications directly to the wireless clients.
Why can't SNMP Trap Log notify the user about video stream issues?
SNMP Traps are intended for network administrators to monitor controller health and do not reach the end-user's device interface.