User guide

Configuring the Wireless AP
Discovery and Registration Overview
SCALANCE WLC711
3-12 C79000-G8976-C260-03, 07/2012, User Guide, V8.11
– SLP — A means of allowing client applications to discover network services without
knowing their location beforehand. Devices advertise their services using a Service Agent
(SA). In larger installations, a Directory Agent (DA) collects information from SAs and
creates a central repository (SLP RFC2608).
The SCALANCE IWLAN Controller contains an SLP SA that, when started, queries the DHCP
server for Option 78 and if found, registers itself with the DA as service type Siemens. The
SCALANCE IWLAN Controller contains a DA (SLPD).
The Wireless AP queries DHCP servers for Option 78 to locate any DAs. The Wireless APs’
SLP User Agent then queries the DAs for a list of Siemens SAs.
Option 78 must be set for the subnets connected to the ports of the SCALANCE IWLAN
Controller and the subnets connected to the Wireless APs. These subnets must contain an
identical list of DA IP addresses.
Registration After Discovery
Any of the discovery steps 2 through 6 can inform the Wireless AP of a list of multiple IP
addresses to which the Wireless AP may attempt to connect. Once the Wireless AP has discovered
these addresses, it sends out connection requests to each of them. These requests are sent
simultaneously. The Wireless AP will attempt to register only with the first which responds to its
request.
When the Wireless AP obtains the IP address of the SCALANCE IWLAN Controller, it connects
and registers, sending its serial number identifier to the SCALANCE IWLAN Controller, and
receiving from the SCALANCE IWLAN Controller a port IP address and binding key.
Once the Wireless AP is registered with a SCALANCE IWLAN Controller, you must configure the
Wireless AP. After the Wireless AP is registered and configured, you can assign it to one or more
Virtual Network Services (VNS) to handle wireless traffic.
Default Wireless AP Configuration
Default Wireless AP configuration acts as a configuration template that can be automatically
assigned to new registering Wireless APs. The default Wireless AP configuration allows you to
specify common sets of radio configuration parameters and VNS assignments for Wireless APs.
For more information, see “Configuring the Default Wireless AP Settings” on page 3-53.
Understanding the Wireless AP LED Status
When you power on and boot the Wireless AP, you can follow its progress through the
registration process by observing the LED sequence as described in the following section
Siemens Wireless AP LED Status
All Siemens Wireless AP models have the LEDs L1, PoE, P1, R1, R2 and F which are used to
indicate the status of the Wireless AP. For the position of the LEDs, refer to the respective AP
manual.
The R1, R2 and F LEDs work in conjunction to indicate the general, high-level and detailed state
respectively. The remaining LEDs indicate link status.