D-Link DES-3852 Product Manual - Page 109
VLAN Commands, Along with normal VLAN configurations
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xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch CLI Manual 15 VLAN COMMANDS Along with normal VLAN configurations, this Switch now incorporate Double VLANs. Better known as Q-IN-Q VLANs, Double VLANs allow network providers to expand their VLAN configurations to place VLANs within a larger inclusive VLAN, which adds a new layer to the VLAN configuration. This basically lets large ISP's create L2 Virtual Private Networks and also create transparent LANs for their customers, which will connect two or more customer LAN points without over complicating configurations on the client's side. Not only will over-complication be avoided, but now the administrator has over 4000 VLANs in which over 4000 VLANs can be placed, therefore greatly expanding the VLAN network. Implementation of this feature adds a VLAN frame to an existing VLAN frame for the ISP VLAN recognition and classification. To ensure devices notice this added VLAN frame, an Ethernet encapsulation, here known as a tpid, is also added to the frame. The device recognizes this tpid and therefore checks the VLAN tagged packet to see if a provider VLAN tag has been added. If so, the packet is then routed through this provider VLAN, which contains smaller VLANs with similar configurations to ensure speedy and guaranteed routing destination of the packet. The VLAN commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table. Command create vlan show vlan config vlan delete vlan create vlan vlanid show vlan vlanid config vlan vlanid delete vlan vlanid config gvrp enable gvrp disable gvrp show gvrp create dot1v_protocol_group group_id config dot1v_protocol_group group_id delete dot1v_protocol_group show dot1v_protocol_group config port dot1v ports show port dot1v enable pvid auto_assign disable pvid auto_assign Parameters {tag | advertisement} {} {[add [tagged | untagged | forbidden] | delete] | advertisement [enable | disable]} {advertisement} {add [ tagged | untagged | forbidden ] | delete | advertisement [enable | disable] | name } [ | all ] {state [enable | disable] | ingress_checking [enable | disable] | acceptable_frame [tagged_only | admit_all] | pvid } {} < id> [add | delete] protocol [ethernet_2| ieee802.3_snap| ieee802.3_llc] < protocol_value> [group_id | all] {group_id } | all] [add protocol_group group_id vlan< vlan_name 32> | delete protocol_group [group_id |all] {ports } 105