VCN510: No Video Can Be Viewed When a User Switches the Live Video Viewing Mode from Multicast to Unicast

Symptom

A user enables multicast on the client and then switches to the unicast mode. When the user views the live video from a camera, no video is played.

Possible Causes

Multicast IP addresses are incorrectly configured.

 NOTE:

Multicast IP addresses are configured by users. Users must have basic multicast knowledge to ensure that multicast IP addresses are configured properly.

Solution

1. Log in to the IVS C/S client and double-click Devices on the Workspace tab page.
2. In the device list, double-click the camera. The Configuration window is displayed.
3. Choose Video Settings > Camera Settings.
4. Check whether the camera multicast IP address is correctly configured by referring to the value range of User multicast IP addresses provided in Table 1.

   Table 1 Value ranges of common multicast IP addresses

   Multicast IP Address Type	Multicast IP Address Range
   Multicast IP addresses	224.0.0.0 to 239.255.255.255
   Reserved multicast IP addresses	224.0.0.0 to 224.0.0.255 224.0.1.0 to 224.0.1.255
   Local management group IP addresses	239.0.0.0 to 239.255.255.255
   User multicast IP addresses	224.0.2.0 to 238.255.255.255

   • If yes, contact Huawei technical support engineers.
   • If no, change the multicast IP address by referring to the value range of User multicast IP addresses and go to the next step.

5. Check whether the fault is rectified.

   If the fault is rectified, no further action is required.