Asus WL-320gE - Manual (Page 13)

1. Introduction
ASUS 802.11g Access Point 13
Chapter 1 - Introduction
1.. Roaming Between ASUS APs
If there are multiple ASUS APs on the network, then a wireless mobile client may
seamlessly roam from one ASUS AP to another.
Each ASUS AP creates its own wireless cell or coverage area, which is also known
as the Basic Service Set (BSS). Any wireless mobile client can communicate with a
particular ASUS AP if it is within the ASUS AP’s coverage area.
If the cells of multiple ASUS APs overlap, then the wireless mobile client may
switch from one ASUS AP to another as it travels throughout the facility. During
the hand-off from one ASUS AP to another, the wireless mobile client maintains an
uninterrupted connection to the network. This is known as “roaming.”
Multiple ASUS APs connected to a common Ethernet network form an Extended
Service Set (ESS). All members of an Extended Service Set are configured with an
ID, known as the SSID or ESSID. Wireless mobile clients must be configured with
the same SSID as the ASUS APs on the network. A client can only roam between
ASUS APs that share the same SSID.
1..5 Roaming Guidelines
• An ASUS WLAN Card can only roam between APs of the same type.
• All ASUS APs must have the same SSID.
• All computers with ASUS WLAN Cards must have the same SSID as the
Access Points that they will roam between.
• If WEP encryption is enabled, then all ASUS APs and client adapters must use
the same encryption level and WEP Key to communicate.
• The ASUS APs’ cells must overlap to ensure that there are no gaps in coverage
and to ensure that the roaming client will always have a connection available.
• ASUS APs that use the same channel should be installed as far away from
each other as possible to reduce potential interference.
• It is strongly recommended that you perform a site survey using the utility
provided with the ASUS WLAN Card to determine the best location for each
ASUS AP in the facility.