Operation Manual – VLANH3C S9500 Series Routing Switches Chapter 1 VLAN Configuration1-1Chapter 1 VLAN ConfigurationWhen configuring VLAN, go to these sections for information you are interested in:z VLAN Overviewz Configuring VLANz Displaying and Maintaining VLANz Overview of Protocol-Based VLAN and IP Subnet-Based VLANz Configuring Protocol-Based VLANz Displaying Protocol-Based VLAN Configurationz Configuring an IP Subnet-Based VLANz Displaying and Maintaining IP Subnet-Based VLAN Configurationz VLAN Configuration Examples1.1 VLAN OverviewA virtual local area network (VLAN) groups the devices in a LAN logically, not physically,into segments to form virtual workgroups. IEEE issued the IEEE 802.1Q in 1999 tostandardize the VLAN implementations.The VLAN technology allows network administrators to logically divide a physical LANinto different broadcast domains or the so-called virtual LANs. Every VLAN contains agroup of workstations with the same demands. The workstations, physically separated,are not necessarily on the same physical LAN segment.You can establish VLANs of the following types on switches:z Port-basedz MAC address-basedz IP multicast-based (A multicast group can be a VLAN.)z Network layer-based (A VLAN can be established by the network layer addressesor protocols of the hosts.)With the VLAN technology, the broadcast and unicast traffic within a VLAN will not beforwarded to other VLANs. This is helpful to control network traffic, save deviceinvestment, simplify network management and enhance security.1.2 Configuring VLANThe following sections describe VLAN configuration tasks:z Creating/Deleting a VLANz Specifying a Description for a VLAN or VLAN interfacez Naming the Current VLANz Shutting down/Bringing up a VLAN Interface
