Siemens EF 711 Series Betriebsanweisung PDF herunterladen (Seite 354)

100

101

Working with a Wireless Distribution System

Key Features of WDS

SCALANCE WLC711

11-10 C79000-G8976-C260-03, 07/2012, User Guide, V8.11

Note:

When a Wireless AP is connecting to its parent Wireless AP and children APs on the same radio, it uses the

same channel for both the connections.

Multi-Root WDS Topology

A WDS topology can have multiple Root Wireless APs. Figure 11-9 illustrates the multiple-root

WDS topology.

Figure 11-9 Multiple-root WDS Topology

Automatic Discovery of Parent and Backup Parent Wireless APs

The children Wireless APs, including the Repeater Wireless AP and the Satellite Wireless APs,

scan for their respective parents at a startup.

You can manually configure a parent and backup parent for the children Wireless APs or you can

enable the children Wireless APs to automatically select the best parent out of all of the available

APs. If you choose automatic parent Wireless AP selection, a child Wireless AP selects a parent

Wireless AP based on its received signal strength and the number of hops to the root Wireless AP.

After a parent Wireless AP and backup parent Wireless AP is selected, the Wireless controller will

first try to negotiate a WDS link with the parent Wireless controller. If the WDS link negotiation is

unsuccessful, the Wireless controller will try to negotiate a link with the backup parent.

Wireless Controller

Root Wireless AP 3Root Wireless AP 1 Root Wireless AP 2

Repeater AP 1 Repeater AP 2 Repeater AP 3

Satellite AP 1 Satellite AP 2 Satellite AP 3

Wireless

Devices

Wireless

Devices

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