584 Configuring VLANsDefault VLAN BehaviorOne VLAN exists on the PowerConnect M6220, M6348, M8024, andM8024-k switches by default. The VLAN ID is 1, and all ports are included inthe VLAN as access ports, which are untagged. This means when a deviceconnects to any port on the switch, the port forwards the packets withoutinserting a VLAN tag. If a device sends a tagged frame to a port, the frame isdropped. 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 add a new VLAN to the VLAN database, no ports are members.The configurable VLAN range is 2–4093. VLAN 4094 and 4095 are reserved.VLAN 4095 is designated as theDiscard VLAN. Setting an access port PVIDto 4095 will effectively shut the port down because frames are not forwardedin either direction.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 21-3.Table 21-3. 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
