Asante Technologies IC36240 user manual Vlan Configuration, Creating or Modifying a Vlan

Chapter 7: VLAN Configuration

A VLAN is a group of end stations with a common set of requirements, independent of physical location. VLANs have the same attributes as a physical LAN but allow you to group end stations even if they are not located physically on the same LAN segment.

Usually VLANs are associated with IP subnetworks. For example, all the end stations in a particular IP subnet belong to the same VLAN. Traffic between VLANs is assigned. LAN port VLAN membership is assigned manually on an port-by-port basis. VLANs can be defined as either Layer 2 or Layer 3 and a VLAN cannot switch between the two layers. Before you create a VLAN, you must decide how they will be created and a naming convention to ensure duplicate VLAN names are not used.

Up to 4094 Virtual LANs (VLANs) are supported on the IntraCore IC36240. The default VLAN with VLAN ID (VID) 1. All switchports (eth1–eth16) are included in the default VID 1. The default VID 1 cannot be deleted.

7.1 Creating or Modifying a VLAN

Enter the following commands beginning in configuration mode:

Command	Purpose
vlan vid	Enter a VLAN ID (2–4094), which that accesses config-vlan mode.
	Enter a new VLAN ID to create a VLAN, or enter an existing VLAN ID
	to modify a VLAN.
name vlan-name	Enter a name for the VLAN (optional).
End	Return to Enable mode.
no vlan vid	Enter a VLAN ID (2-4094) to be removed.

Switchports are Layer 2-only interfaces associated with a physical port. A switchport is used as an access port. Switch ports are used for managing the physical interface and associated Layer 2 protocols and do not handle routing or bridging. Ports 1–16 on the IC36240 are Ethernet ports. The following example demonstrates how to enter the interface configuration mode for port 16:

Switch(config)# interface eth16

Switch(config-if-eth16)#

From the interface configuration mode, use the switchport command to configure the access port or the Class of Service (CoS) default priority for the port.

An access port belongs to and carries the traffic of only one VLAN (see Virtual Interfaces, below.) Traffic is received and sent in native formats with no VLAN tagging. Traffic arriving on an access port is assumed to belong to the VLAN assigned to the port. If an access port receives a tagged packet (802.1Q tagged), the packet is dropped, and the source address is not learned. Static access ports are manually assigned to a VLAN.

Switch(config-if-eth16)# switchport access vlan <1-4093>

66 Asante IntraCore IC36240 User’s Manual