Advantech eki-7656c User Manual page 83

802.1Q VLAN
Tagged-based VLAN is an IEEE 802.1Q specification standard. Therefore, it is possible to create a VLAN
across devices from different switch 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.
You can create Tag-based VLAN, and enable or disable GVRP protocol. There are 256 VLAN groups to
provide configuration. Enable 802.1Q VLAN, all ports on the switch belong to default VLAN of VID 1. The
default VLAN can't be deleted.
GVRP (GARP VLAN Registration Protocol) is a protocol that facilitates control of virtual local area
networks (VLANs) within a larger network. GVRP conforms to the IEEE 802.1Q specification, which
defines a method of tagging frames with VLAN configuration data. This allows network devices to
dynamically exchange VLAN configuration information with other devices.
GVRP is based on GARP (Generic Attribute Registration Protocol), a protocol that defines procedures by
which end stations and switches in a local area network (LAN) can register and de-register attributes,
such as identifiers or addresses, with each other.
Every end station and switch thus has a current record of all the other end stations and switches that can
be reached.
802.1Q Configuration
• Pull down the selection item and focus on 802.1Q then press Apply
Mode in 802.1Q mode.
• Enable GVRP Protocol: Tick the checkbox to enable GVRP protocol. This checkbox is available while
the VLAN Operation Mode is in 802.1Q mode.
• Management VLAN ID: The default value is '0' which means VLAN function in 802.1Q mode is not
available. While this column field is filled with a value from 1 to 4096, the member ports of this VLAN
can access the management interface.
• Select the port you want to configure.
• Link Type: There are 3 types of link type.
Access Link: Single switch only, it allows the user to group ports by assigning the same
Untagged VID. While this link type is set, the Untagged VID column field is available but the
Tagged VID column field is disabled.
Trunk Link: The extended application of Access Link. It allows the tagged frames go across
two or more switches by assigning the tag with VID to the frames. Having set this link type, the
Tagged VID column field is available but the Untagged VID column field is disabled.
Hybrid Link: Both Access Link and Trunk Link are available.
• Untagged VID: Assign the untagged frame VID.
• Tagged VID: Assign the tagged frame VID.
• Click Apply to have the settings taken effect.
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to set the VLAN Operation
Chapter3