2 optimizing the wlan, Optimizing the wlan – AASTRA SIP-DECT (Release 3.0)- OM System Manual - Installation, Administration and Maintenance EN User Manual

Page 198

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SIP–DECT OM System Manual Release 3.0

9 Configuration und Administration Aspects

Aastra

depl-1624/1.0

Page: 198 (241)

Select one of the two-letter country codes. This setting depends on the country and is
prescribed by the laws of that country. Only the setting prescribed for that country must be
used.

The third step is to specify the WLAN parameters in a profile (see chapter 7.8.1). The WLAN
profile determines the name (SSID) of the WLAN network and other parameters. The
encryption and authentication procedures are especially important and must be planned
carefully beforehand.

The access point can be assigned to a VLAN that conforms to 802.1q. All the data that is
received from and that is to be forwarded to the WLAN clients is then carried by the
configured VLAN. All other data, such as VoIP packets, configuration data or authentication
data (Radius), is given the VLAN tag configured for the RFP. The switch port of the network
component to which the access point is connected must be configured as a trunk port.

Note:

The RFP (L) 42 WLAN and RFP (L) 43 WLAN must be connected at least via a
100BaseT Ethernet link in order to activate the RFP’s WLAN function.

As a forth step, you need to assign a WLAN profile to a configured RFP. This can be done on
the

Radio fixed parts

page of the OMM web service or on the

Radio fixed parts

:

Device

list

page of the OMP java tool. Note, that specific radio settings for the RFP, such the

channel-, 802.11abgn mode-, or antenna settings, are also done in this step.

9.15.2

Optimizing the WLAN

Beacon Interval

Transmitting beacons requires transmission channel capacity. A shorted beacon interval
increases the WLAN network's ability to detect signals, thus improving its availability. At the
same time, it increases the network's ability to adjust the mutually negotiated signal strength.
A longer beacon interval saves WLAN air time and also reduces the power consumption of
mobile WLAN clients.

RTS Threshold

If the network throughput is low or if many retransmissions occur, the RTS/CTS handshake
can be activated by reducing the RTS threshold value below 1500 byte. This can improve

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