D-Link DGS-3120-24TC Product Manual - Page 83

xStack® DGS-3120 Series Managed Switch Web UI Reference Guide 2. All ports must be configured as Access Ports or Uplink ports. Access ports can only be Ethernet ports while Uplink ports must be Gigabit ports. 3. Provider Edge switches must allow frames of at least 1522 bytes or more, due to the addition of the SPVID tag. 4. Access Ports must be an un-tagged port of the service provider VLANs. Uplink Ports must be a tagged port of the service provider VLANs. 5. The switch cannot have both double and normal VLANs co-existing. Once the change of VLAN is made, all Access Control lists are cleared and must be reconfigured. 6. Once Double VLANs are enabled, GVRP must be disabled. 7. All packets sent from the CPU to the Access ports must be untagged. 8. The following functions will not operate when the switch is in Double VLAN mode: • Guest VLANs. • Web-based Access Control. • IP Multicast Routing. • GVRP. • All Regular 802.1Q VLAN functions. QinQ Settings On this page the user can configure the QinQ parameters. To view the following window, click L2 Features > QinQ > QinQ Settings, as show below: Figure 4-26 QinQ Settings Window The fields that can be configured are described below: 75