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INSTALLATION AND OPERATION MANUAL
CNGE5MS
Tech SupporT: 1.888.678.9427
VLAN
A Virtual LAN (VLAN) is a logical network grouping that limits the broadcast domain, which allows
you to isolate network traffic. Only the members of the VLAN will receive traffic from the same
members of VLAN. Basically, creating a VLAN from a switch is logically equivalent of reconnecting
a group of network devices to another Layer 2 switch. However, all the network devices are still
plugged into the same switch physically.
The switch supports port-based and 802.1Q (tagged-based) VLAN. The default configuration of
VLAN operation mode is at
802.1Q
.
VLAN Configuration – 802.1Q
Tagged-based VLAN is an IEEE 802.1Q specification standard, and 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 configure. Enable 802.1Q VLAN, the all ports on the switch belong to default
VLAN, VID is 1. The default VLAN cannot be deleted.
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 by using the VID of a
VLAN defined on the switch; the switch will automatically add that device to the existing VLAN.
