Why are some multicast data packets lost when users start to watch video programs

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When users request many multicast groups, the multicast device may not finish creating all the multicast forwarding entries when it receives multicast data packets. In this case, the device cannot find matching entries for some multicast data packets in a short time. Therefore, you will find a few multicast data packets dropped in interface traffic statistics. This packet loss will not affect image quality on user terminals.

Other related questions:
Why are some multicast data packets lost when users start to watch video programs
When users request many multicast groups, the multicast device may not finish creating all the multicast forwarding entries when it receives multicast data packets. In this case, the device cannot find matching entries for some multicast data packets in a short time. Therefore, you will find a few multicast data packets dropped in interface traffic statistics. This packet loss will not affect image quality on user terminals.

Why are packets lost when the STA pings the gateway
Run the dtim-interval 1 and beacon-interval 100 commands to configure the DTIM interval and Beacon interval specified in the radio profile. NOTE: DTIM refers to delivery traffic indication map. An AP broadcasts Beacon frames at intervals to notify STAs of an existing 802.11 network.

RSE6500 audio and video freezing occurs if the VLC is used to watch TS Multicast
Question: 1) When the VLC is used to watch TS multicast, audio and video freezing occurs after about 50 seconds. Then, freezing is restored. 2) When the video is paused and then continued on the VLC, audio and video freezing occurs after about 50 seconds. Then, freezing is restored. Possible Cause: There is something wrong with the buttering and fault tolerance of the VLC, resulting in freezing. Solution: Use 48X conference terminals or QuickTime to watch SAP multicast.

Why is no Layer 3 multicast forwarding entry generated on S series switches after users order multicast programs
The possible causes are as follows: - No RP is configured on the PIM-SM network. In this case, configure static or dynamic RP. - The route to the multicast source or RP is unreachable. In this case, configure a unicast routing protocol to enable the switch to learn the routes to the multicast source or RP.

Question about packet loss when the rate of ping packets is high on S series switches
When another device pings an S series switch (a non-S1700 switch), the device and the switch exchange ICMP packets. To protect the CPU, you can run the icmp rate-limit command to configure a rate threshold for ICMP packets. The undo icmp rate-limit command restores the default rate threshold of ICMP packets.

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