Question 397 - N10-008 discussion

To allow each device to access its expected network without additional connections, theadministrator needs to configure VLANs (virtual LANs) on the switch. VLANs are logical groupsof devices that share the same broadcast domain, regardless of their physical location orconnection. VLANs can improve network performance, security, and management by isolatingtraffic and reducing broadcast storms. To configure VLANs on the switch, the administratorneeds to assign each device port to a specific VLAN and set the VLAN tagging mode. VLANtagging is a method of adding a VLAN identifier to the Ethernet frames to indicate which VLANthey belong to. There are two types of VLAN tagging: untagged and tagged. Untagged VLANtagging means that the switch removes the VLAN identifier from the frames before sendingthem to the device port. This is suitable for end devices that do not support VLAN tagging, such as PCs, printers, etc. Tagged VLAN tagging means that the switch keeps the VLAN identifier onthe frames when sending them to the device port. This is suitable for devices that support VLANtagging, such as routers, servers, other switches, etc. To allow each device to access the rest ofthe network, the administrator needs to configure a trunk port on the switch that connects tothe uplink. A trunk port is a port that can carry traffic from multiple VLANs using tagged VLANtagging. This way, the switch can send and receive frames from different VLANs to and from therest of the network. Therefore, the administrator should do the following to meet therequirements:Untag an individual VLAN per device port. This will assign each device port to a specific VLANand remove the VLAN identifier from the frames before sending them to the device port. Thiswill allow each device to access its expected network without additional connections.Tag the three VLANs across the uplink. This will configure a trunk port on the switch thatconnects to the uplink and add the VLAN identifier to the frames before sending them to theuplink. This will allow the switch to carry traffic from multiple VLANs to and from the rest of thenetwork.VLANs and TrunksVLAN Tagging Explained with DTP Protocol