Allied-telesis AT-S21 Manuel d'utilisateur télécharger pdf (Page 49)

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Menus:

Virtual LANs

Figure 3-5

Virtual LANs Menu

This switch supports port based VLANs only.

By default, the switch has one VLAN (all ports’ VLAN assignment

showing as

Default VLAN

) and one spanning tree. In most

situations, users find the defaults acceptable and do not require

further configuration; however, your network may require assigning

end stations into logical groupings, regardless of their physical

location. You can group your end stations logically through VLANs.

Information exchange is confined within the members of a given

VLAN. A VLAN constitutes one broadcast domain; therefore,

broadcast packets from an end station only go to other stations

within the same VLAN.

VLANs cannot communicate with each other through the switch;

they require a router to do this (Figure 3-6).

Figure 3-6

VLAN Example

-232

10BASE-T / 100BASE-TX

FAST ETHERNET SWITCH

10B

-T

/ 100B

-T

Router

VLAN 1

VLAN 2

AT-8124XL

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Allied-telesis AT-S21 Manuel d'utilisateur Page 49