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User’s Manual of GS-4210-16T2S_24T2S_16P2S_24P2S_48T4S
122
This section has the following items:
Management VLAN
Configures the management VLAN.
Create VLAN
Creates thn VLAN group.
Interface Settings
Configures mode and PVID on the VLAN port.
Port to VLAN
Configures the VLAN membership.
Port VLAN Membership
Display the VLAN membership.
Protocol VLAN Group
Setting
Configures the protocol VLAN group.
Protocol VLAN Port
Setting
Configures the protocol VLAN port setting.
GVRP Setting
Configures GVRP global setting.
GVRP Port Setting
Configures GVRP port setting.
GVRP VLAN
Display the GVRP VLAN database.
GVRP Statistics
Display the GVRP port statistics.
4.5.2 IEEE 802.1Q VLAN
In large networks, routers are used to isolate broadcast traffic for each subnet into separate domains. This Managed Switch
provides a similar service at Layer 2 by using VLANs to organize any group of network nodes into separate broadcast domains.
VLANs confine broadcast traffic to the originating group, and can eliminate broadcast storms in large networks. This also
provides a more secure and cleaner network environment.
An IEEE 802.1Q VLAN is a group of ports that can be located anywhere in the network, but communicate as though they belong
to the same physical segment.
VLANs help to simplify network management by allowing you to move devices to a new VLAN without having to change any
physical connections. VLANs can be easily organized to reflect departmental groups (such as Marketing or R&D), usage groups
(such as e-mail), or multicast groups (used for multimedia applications such as videoconferencing).
VLANs provide greater network efficiency by reducing broadcast traffic, and allow you to make network changes without having
to update IP addresses or IP subnets. VLANs inherently provide a high level of network security since traffic must pass through
a configured Layer 3 link to reach a different VLAN.
This Managed Switch supports the following VLAN features:
Up to 256 VLANs based on the IEEE 802.1Q standard
Port overlapping, allowing a port to participate in multiple VLANs
End stations can belong to multiple VLANs
Passing traffic between VLAN-aware and VLAN-unaware devices
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IEEE 802.1Q Standard
IEEE 802.1Q (tagged) VLAN
are implemented on the Switch. 802.1Q VLAN require tagging, which enables them to span the
entire network (assuming all switches on the network are IEEE 802.1Q-compliant).
VLAN allow a network to be segmented in order to reduce the size of broadcast domains. All packets entering a VLAN will only
be forwarded to the stations (over IEEE 802.1Q enabled switches) that are members of that VLAN, and this includes broadcast,
multicast and unicast packets from unknown sources.