KTI Networks KS-2260 operation manual Ieee 802.1Q Vlan Tag-based Vlan

1.5.6.2 IEEE 802.1Q VLAN (Tag-based VLAN)

Tag-based VLAN is an IEEE 802.1Q specification standard. Therefore, it is possible to create a VLAN across devices from different venders. IEEE 802.1Q VLAN uses a technique to insert a tag into the Ethernet frames. Tag contains a VLAN Identifier (VID) that indicates the VLAN numbers.

The switch can classify each received packet as belonging to one and only one VLAN. If the received packet is VLAN-tagged, the packet is classified as belonging to the VLAN specified in the VLAN tag header. If the received packet is untagged, it is classified as belonging to the de- fault VLAN configured for the ingress port.

Required configurations:

•Enable or disable GVRP support

•VLAN information including VID (2-4094) and name

•Tagged member ports of each VLAN

•Outgoing tag mode for each member port Tag - outgoing frames with VLAN-tagged Untag - outgoing frames without VLAN-tagged

•PVID (Port VID, 1-255 for untagged incoming frames) for each port

•Ingress Rule 1 setting for each port : forward only packets with VID matching configured PVID

•Ingress Rule 2 setting for each port : drop untagged frames

PVID : this feature is useful to accommodate the devices which do not support tagging to participate in the VLAN.

GVRP - GARP [Generic Attribute Registration Protocol] VLAN Regis-

tration Protocol : GVRP allows automatic VLAN configuration between the switch and nodes. If the switch is connected to a device with GVRP enabled, you can send a GVRP request using the VID of a VLAN defined on the switch, the switch will automatically add that device to the exist- ing VLAN. (GVRP - 802.1Q complaint, GARP - 802.1P compliant)

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