Configuring VLANs 577Default VLAN BehaviorOne VLAN is configured on the PowerConnect 7000 Series switches bydefault. The VLAN ID is 1, and all ports are included in the VLAN as accessports, which are untagged. This means when a device connects to any port onthe switch, the port forwards the packets without inserting a VLAN tag. If adevice sends a tagged frame to a port with a VLAN ID other than 1, the frameis dropped. Since all ports are members of this VLAN, all ports are in the samebroadcast domain and receive all broadcast and multicast traffic received onany port.When you create a new VLAN, all trunk ports are members of the VLAN bydefault. The configurable VLAN range is 2–4093. VLANs 4094 and 4095 arereserved.Ports in trunk and access mode have the default behavior shown in Table 21-2and cannot be configured with different tagging or ingress filtering values.When you add a VLAN to a port in general mode, the VLAN has the behaviorshown in Table 21-6.Table 21-6. General mode Default SettingsFeature Default ValueFrames accepted UntaggedIncoming untagged frames are classified into the VLANwhose VLAN ID is the currently configured PVID.Frames sent UntaggedIngress Filtering OnPVID 1
