CLI Reference Guide-R02

Table Of Contents
Chapter 18
| VLAN Commands
Configuring VLAN Interfaces
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vlan-list - If a VLAN list is entered without using the add option, the
interface is assigned to the specified VLANs, and membership in all
previous VLANs is removed. The interface is added as an untagged member
if switchport mode is set to hybrid or access, or as an tagged member if
switchport mode is set to trunk.
Separate nonconsecutive VLAN identifiers with a comma and no spaces;
use a hyphen to designate a range of IDs. (Range: 1-4094).
add vlan-list - List of VLAN identifiers to add. When the add option is used,
the interface is assigned to the specified VLANs, and membership in all
previous VLANs is retained.
remove vlan-list - List of VLAN identifiers to remove.
Default Setting
All ports are assigned to VLAN 1 by default.
The default frame type is untagged.
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
If a port or trunk has switchport mode set to access, then only one VLAN can be
added with this command. If a VLAN list is specified, only the last VLAN in the
list will be added to the interface.
If a port or trunk has switchport mode set to trunk (i.e., 1Q Trunk), then you can
only assign the interface to VLAN groups as a tagged member.
Frames are always tagged within the switch. The tagged/untagged parameter
used when adding a VLAN to an interface tells the switch whether to keep or
remove the tag from a frame on egress.
If none of the intermediate network devices nor the host at the other end of the
connection supports VLANs, the interface should be added to these VLANs as
an untagged member. Otherwise, it is only necessary to add at most one VLAN
as untagged, and this should correspond to the native VLAN for the interface.
If a VLAN on the forbidden list for an interface is manually added to that
interface, the VLAN is automatically removed from the forbidden list for that
interface.
Ports can only be added to an RSPAN VLAN using the commands described
under “RSPAN Mirroring Commands”.