Planet IGSW-2840 User Manual page 563

Setting the native VLAN for a port can only be performed when the port is a member of the VLAN and the VLAN is
untagged. The no switchport native vlan command will set the native VLAN of the port to untagged VLAN 1.
If acceptable frame types is set to all or switchport mode is set to hybrid, the PVID will be inserted into all untagged frames
entering the ingress port.
Example
The following example shows how to set the PVID for port 1 to VLAN 3: .
Console(config)#interface ethernet 1/1
Console(config-if)#switchport native vlan 3
Console(config-if)#
switchport allowed vlan
This command configures VLAN groups on the selected interface. Use the no form to restore the default.
Syntax
switchport allowed vlan {add vlan-list [tagged | untagged] |remove vlan-list} no switchport allowed vlanadd vlan-list -List of
VLAN identifiers to add.
remove vlan-list - List of VLAN identifiers to remove.
vlan-list - Separate nonconsecutive VLAN identifiers with a comma and no spaces; use a hyphen to designate a range of
IDs. Do not enter leading zeros. (Range: 1-4094).
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
A port, or a trunk with switchport mode set to hybrid, must be assigned to a VLAN as untagged.
If a trunk has switchport mode set to trunk (i.e., 1Q Trunk), then you can only assign an 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.
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User's Manual of IGSW-2840