Dell PowerConnect 3048 User Manual

Also see for PowerConnect 3048: Quick start guide User guide addendum System information guide User guide

Contents

Dell PowerConnect 3048 User Manual Manual pdf 114 page image

114 Appendixw w w . d e l l . c o m | s u p p o r t . d e l l . c o mVLAN DescriptionPackets received by the switch are treated in the following ways:• When an untagged packet enters a port, the system automatically tagsit with the port’s default VLAN ID tag number. Each port has a defaultVLAN ID setting that is user configurable. The default setting is 1.Change the default VLAN ID setting for each port from the port’srespective Port Configuration page.• When a tagged packet enters a port, the default VLAN ID setting hasno effect on the tag.– The packet proceeds to the VLAN specified by its VLAN ID tagnumber.– If the port in which the packet entered does not belong to theVLAN specified by the packet’s VLAN ID tag, the system dropsthe packet.– If the port belongs to the VLAN specified by the packet’s VLANID, the system can send the packet to other ports with the sameVLAN ID.NOTE: You canchange port VLANmembership settings inthe VLAN Membershipscreen.• Packets leaving the switch are either tagged or untagged depending onthat port’s membership properties.• A U for a given port and VLAN means that packets leaving the switchfrom that port and VLAN are untagged. A T for a given port and VLANmeans that packets leaving the switch from that port and VLAN aretagged with the respective ID for the VLAN to which that portbelongs.VLAN ExamplesIn the following two examples, example 1 explains a simple two-groupVLAN setup. Example 2 explains a more elaborate setup, illustrating allpossible scenarios for a comprehensive understanding of tagged VLANs.Example 11 In the VLAN Administration page, add a new VLAN to the list, shownin the following illustration as New with a VLAN ID value of 2.