The voice VLAN is configured in auto mode. Why voice services are interrupted after the timer expires

From V100R005 to V200R002, when the voice VLAN on the switch interface is configured to work in auto mode and the aging time is reached, voice flows are sent to the switch itself. Then the switch delivers entries about packet priority change. As a result, packets sent to the switch are not forwarded, and packet loss occurs. When this occurs, change the auto mode to manual mode and add the interface to the voice VLAN.

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