Mine Site Technologies NS50, Руководство пользователя, Страница: 48 / 126

4.2 VLANs and Wireless Networks
The wireless network switch can have up to four wireless Service Set Identifiers (SSIDs) per WAC. Each
SSID is associated with a single VLAN and functions as an access port on that VLAN. An example of a
wireless network is shown in
Figure 16: An example of VLAN and wireless networks and described below.
Figure 16: An example of VLAN and wireless networks
1. An untagged frame is sent from a Laptop 1 through a wireless network (SSID = Data) on the network
switch.
2. The frame is tagged by the network switch and is sent through the trunk port to the WAP.
3. The WAP identifies the tagged frame as belonging to the Data VLAN and removes the tag.
4. The untagged frame is sent via the wireless network (SSID = Data) to Laptop 2.
4.3 Native VLAN
Trunk ports on the wireless network switch also support a Native VLAN. The Native VLAN is where
untagged frames will be allocated. On the network switch, the native VLAN is always the Infrastructure
VLAN. This allows client devices such as PCs or laptops to access and manage the network switch when
they are connected via a trunk port.
The Infrastructure VLAN is mandatory in the network switch and cannot be deleted.
An example of native VLAN functionality is illustrated in Figure 17: An example of native VLAN and
described below.
Revision A 48 NS50 User Manual
Understanding VLANs