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VLANs
A VLAN is a logical partition of one or more physical networks. A single VLAN can span
multiple LANs, and multiple VLANs can reside within a single LAN. One major benefit of
a VLAN is that traffic is restricted to a subset of the physical LAN or LANs. Multicasts are
only sent to the VLAN member ports. Therefore, a VLAN can conserve network bandwidth
and improve security.
All the devices in a designated VLAN need not necessarily support VLANs. Devices that
receive or generate data, such as a user's laptop or desktop computer, do not need to support
VLANs to be part of a VLAN. Instead, a network device, such as a switch, can insert the
VLAN ID into the data received from a device in a VLAN. Data containing the VLAN ID
is considered "tagged."
Access Point 2000
The RoamAbout Access Point 2000 only allows or disallows the forwarding of tagged
VLAN data in LAN-to-LAN bridge mode. The AP 2000 does not support configuring the
ports as VLAN members.
The AP does not forward VLAN data while in workgroup bridge mode.
R2 Access Platform
The RoamAbout R2 supports the forwarding of tagged VLAN data. It does NOT support
the following:
Insertion of VLAN IDs into untagged frames.
Spanning Trees on a per VLAN basis.
GARP Multicast Registration Protocol (GMRP).
VLAN IDs higher than 2047. The R2 supports VLANs numbered 2-2047.
Forwarding of VLAN data while the R2 is in workgroup mode. The R2 does not
support VLANs when either slot of the R2 is in workgroup mode.
NOTE
NOTE: VLAN 1 is a default VLAN used by the R2 to allow
pass-through of untagged data. Changing the VLAN 1 default settings
could prevent the R2 from forwarding untagged data.
VLANs
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