Actions for Multicast Video Streaming
Question
A wireless network has been implemented to enable multicast video to be streamed reliably over the wireless link to the wireless users.
After a client reports that the video is unable to stream, the administrator determines that the client is connecting at a data rate of 12 Mbps and is trying to stream to a valid multicast address on the network.
Which two actions must be applied? (Choose two.)
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D. E.BC.
To ensure reliable multicast video streaming over a wireless network, several configurations need to be in place. In this scenario, a client reports that the video is unable to stream, and the administrator determines that the client is connecting at a data rate of 12 Mbps and is trying to stream to a valid multicast address on the network.
Two actions that should be taken to resolve this issue are:
Implement video-stream for the multicast video on the controller: When a multicast video is streamed, the controller should be configured to support it. Implementing video-stream on the controller will enable the controller to manage and distribute the multicast video streams effectively. This involves configuring the controller to support the protocols used for video streaming, such as the Real-Time Streaming Protocol (RTSP), and configuring the necessary access points (APs) to support multicast routing.
Allow multicast-direct to work correctly and multicast-direct to be enabled globally: Multicast-direct is a feature that allows multicast traffic to be sent directly between wireless clients without having to go through the controller. Enabling multicast-direct can help to reduce latency and improve the overall performance of multicast video streaming. Multicast-direct should be allowed to work correctly, and it should be enabled globally to ensure that all wireless clients can take advantage of this feature.
Therefore, the correct answers are B and C.
The other answer options are incorrect for the following reasons:
A. Turning off IGMP snooping for all the configured WLANs on the controller is not recommended. IGMP snooping is a feature that allows the controller to filter out unnecessary multicast traffic, which can help to improve network performance. Disabling this feature could potentially cause network congestion and impact overall network performance.
D. Changing the WLAN QoS value to Bronze for the WLAN that multicast will be enabled is not relevant to the issue at hand. QoS (Quality of Service) is a mechanism that prioritizes traffic based on its importance. Changing the QoS value for a WLAN will not address the issue of multicast video streaming.
E. Allowing RTSP to stream the video due to wireless multicast not using acknowledgements is not entirely accurate. RTSP is a protocol used for controlling the streaming of multimedia data, but it is not directly related to multicast video streaming. Additionally, wireless multicast does use acknowledgements to ensure reliable data transmission.
