Configuring Vlans - Allied Telesis SwitchBlade x908 Series Software Reference Manual

Configuring VLANs

Defaults By default, all switch ports are in access mode, are associated with the default VLAN (vlan1),
and have ingress filtering on. You cannot delete vlan1.
VLAN names When you create a VLAN
Identifier (VID)—a number from 2 to 4094, which is included in VLAN-tagged Ethernet frames
to and from this VLAN. You may also give it an arbitrary alphanumeric name containing a
meaningful description, which is not transmitted to other devices.
When referring to a VLAN, some commands require the VLAN to be specified by its VID
while some commands require it to be specified by its interface name: vlan<VID>. In command
output, the VLAN may be referred to by its VID, its interface name (vlan<VID>), or its VLAN
name (the arbitrary alphanumeric string).
You can name a VLAN with a string containing "vlan" and its VLAN Identifier (VID). To avoid
confusion, we recommend not naming it "vlan" followed by any number different from its VID.
Access mode A switch port in access mode sends untagged Ethernet frames, that is, frames without a VLAN
tag. Each port is associated with one VLAN (the port-based VLAN, by default, vlan1), and
when it receives untagged frames, it associates them with the VID of this VLAN. You can
associate the port with another VLAN created by the
the default VLAN
Use access mode for any ports connected to devices that do not use VLAN tagging, for
instance PC workstations.
Trunk mode A switch port in trunk mode is associated with one or more VLANs for which it transmits
VLAN-tagged frames, and for which it identifies incoming tagged frames with these VIDs.
To allow a switch port to distinguish and identify traffic from different VLANs, put it in trunk
mode
trunk mode for ports connected to other switches which send VLAN-tagged traffic from one
or more VLANs.
A trunk mode port may also have a native VLAN (by default vlan1), for which it transmits
untagged frames, and with which it associates incoming untagged frames
native
Mirror ports A mirror port cannot be associated with a VLAN. If a switch port is configured to be a mirror
port
was associated with.
VLANs and All the ports in a channel group must have the same VLAN configuration: they must belong to
channel groups the same VLANs and have the same tagging status, and can only be operated on as a group.
Table 16-1: Configuration procedure for VLANs
Prompt
Create VLANs
awplus#
awplus(config)#
awplus(config-vlan)#
C613-50007-01 REV B
(vlan command on page
(switchport access vlan
(switchport mode trunk), and add the VLANs
vlan).
(mirror interface command on page
Command
configure terminal
vlan database
vlan <vid> [name <vlan-name>]
[state {enable|disable}]
or
vlan <vid-range> [state {enable|
disable}]
Software Reference for SwitchBlade® x908, x900 and x600 Series Switches
TM
AlliedWare Plus Operating System - Software Version 5.3.1
17.17), you give it a numerical VLAN
vlan command, and this removes it from
command).
(switchport trunk allowed
15.15), it is automatically removed from any VLAN it
Description
Enter Configuration mode.
Enter VLAN Database Configuration mode.
Create VLANs.
VLAN Introduction
vlan). Use
(switchport trunk
16.3