Hi
@user_3423639 ,Maximum number of VLANs in the system 4096 (VLAN 0 and VLAN 4095 are reserved)
Suggestions:If LNP is used to dynamically negotiate the link type (LNP is enabled by default), it is recommended that each interface be added to a maximum of 1000 VLANs and a maximum of 200 interfaces be configured on a switch. If 4094 VLANs are configured globally, it is recommended that a maximum of 50 interfaces be enabled with LNP. Otherwise, the alarm about a high CPU usage is generated for a short time.