3Com 2848 SFP User Guide - Page 36

36 CONFIGURING THE SWITCH Figure 14 Untagged VLAN Configuration Example Endstations in VLAN 1 Endstations in VLAN 2 Baseline Switch 2848-SFP Plus Server Server in VLAN 1 in VLAN 2 This example explains how you can set up a simple VLAN Configuration on your Switch using untagged connections. If you want to add ports 7, 8 and 16 to VLAN2, as shown in Figure 14, so that the ports on the default VLAN1 and the ports on VLAN2 cannot communicate with each other, do the following: 1 Use the Create VLANs screen (Figure 13) to create VLAN2. (VLAN1 is the default VLAN and already exists.) 2 Click the icon under port number 7 until you see the letter U for Untagged. 3 Repeat step 2 for ports 8 and 16. 4 Click Apply. Ports 7, 8 and 16 now belong to VLAN2, and will not communicate with any other ports until you add another port to the VLAN, or change the port configuration. Setting Up a VLAN Across Two Switches This example explains how you can set up a VLAN across two Switches using tagged connections. This enables ports that are members of the same VLAN (but are on different switches) to communicate, provided that a port on each Switch is set to tagged, and that these ports are connected. Figure 15 Tagged VLAN Configuration Example