Asus WL-160G User Manual download pdf (Page 12)

1. Introduction

Chapter 1 - Introduction

12 ASUS 802.11g Access Point

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. This is also

known as a 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.

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(s) 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.

Roaming

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Asus WL-160G User Manual Page 12