SMC Networks TIGERSWITCH SMC6752AL2 ユーザーズマニュアル

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This command configures VLAN groups on the selected interface. Use 
the no form to restore the default.

switchport allowed vlan {add vlan-list [tagged | untagged] | 

remove vlan-list} 

• add 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).

• All ports are assigned to VLAN 1 by default
• The default frame type is untagged.

Interface Configuration (Ethernet, Port Channel)

• A port, or a trunk with switchport mode set to hybrid, must be 

assigned to at least one 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.