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INSTALLATION AND OPERATION MANUAL
CNGE2FE16MS
TECh SUPPORT: 1.888.678.9427
VLAN Configuration
A Virtual LAN (VLAN) is a logical network grouping that limits the broadcast domain, which allows
you to isolate network traffic. Therefore only the members of the same VLAN will receive traffic
from the ones among the same VLAN. Basically, creating a VLAN on 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.
This switch supports
802.1Q
(tagged-based) VLAN. Please read the following instructions to
configure the appropriate type of VLAN for your need.
Figure 68 – VLAN Configuration interface
802.1Q VLAN
When the VLAN operation mode is set on 802.1Q, all ports on the switch belong to the default
VLAN of VID 1, which means they logically are regarded as members of the same broadcast
domain. The valid VLAN ID is in the range of number between 1 and 4094. The amount of VLAN
groups is up to 256 including the default VLAN that cannot be deleted.
GVRP (GARP VLAN Registration Protocol) is a protocol that facilitates control of 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. For example, with GVRP enabled,
the switches are able to automatically exchange the information of their VLAN database.
Therefore, the user needn’t manually configure the link type. The packets belonging to the same
VLAN can communicate across switches.
Each member port of 802.1Q is on either an Access Link (VLAN-tagged) or a Trunk Link (no
VLAN-tagged). All frames on an Access Link carry no VLAN identification. Conversely, all frames
on a Trunk Link are VLAN-tagged. Besides, there is the third mode—Hybrid. A Hybrid Link can
carry both VLAN-tagged frames and untagged frames. A single port is supposed to belong to a