Siemens EF 711 Series Betriebsanweisung PDF herunterladen (Seite 115)

Configuring the Wireless AP

Configuring Wireless AP Settings

SCALANCE WLC711

User Guide, V8.11, 07/2012, C79000-G8976-C260-03 3-27

If using half of the available channels is not an option for your environment, do not

configure a channel plan. Instead, allow ACS to select from all available channels. This

alternate solution may contribute to increased congestion on the extension channels.

Note:

ACS in the 2.4GHz radio band with 40MHz channels is not recommended due to severe co-channel

interference.

• Dynamic Channel Selection (DCS) — DCS allows a Wireless AP to monitor traffic and noise

levels on the channel on which the Wireless AP is currently operating. DCS can operate in two

modes:

– Monitor — When DCS is enabled in monitor mode and traffic or noise levels exceed the

configured DCS thresholds, an alarm is triggered and an information log is generated.

The DCS monitor alarm is used for evaluating the RF environment of your deployed

Wireless APs.

– Active — When DCS is enabled in active mode and traffic or noise levels exceed the

configured DCS thresholds, an alarm is triggered and an information log is generated. In

addition, the Wireless AP will cease operating on the current channel and ACS will be

employed to select an alternate channel for the Wireless AP to operate on. DCS will not

trigger channel changes on neighboring Wireless APs.

Note:

If DCS is enabled, DCS statistics can be viewed in the Wireless Statistics by Wireless APs display. For

more information, see Chapter 16, Working with Reports and Statistics.

• Auto Tx Power Control (ATPC) — ATPC guarantees your LAN a stable RF environment by

automatically adapting transmission power signals according to the coverage provided by the

Wireless APs. ATPC can be either enabled or disabled.

When you disable ATPC, you are given the option of automatically adjusting the Max Tx

Power setting to match the Current Tx Power Level. In the case of AP Multi-edit, if you reply

yes, then each individual Wireless AP's Max Tx Power setting will be adjusted to correspond

with its Current Tx Power Level in the database.

Modifying Wireless 802.11n AP W786C/W788C Radio Properties

The following section describes how to modify a Wireless 802.11n AP.

For information on how to modify a SCALANCE W786-2HPW, see “Modifying Wireless AP

W786-2HPW Radio Properties” on page 3-39.

Channel Bonding

Channel bonding improves the effective throughput of the wireless LAN. In contrast to the

Wireless AP W786-2HPW which uses radio channel spacings that are only 20MHz wide, the

Wireless 802.11n AP can use two channels at the same time to create a 40MHz wide channel. To

achieve a 40MHz channel width, the Wireless 802.11n AP employs channel bonding — two

20MHz channels at the same time.

The 40MHz channel width is achieved by bonding the primary channel (20MHz) with an

extension channel that is either 20MHz above (bonding up) or 20MHz below (bonding down) of

the primary channel.

Depending on the Radio, channel bonding can be predefined:

• Radio 1 — Bonding pairs are predefined.

1 2 ... 110 111 112 113 114 115 116 117 118 119 120 ... 491 492

Kommentare zu diesen Handbüchern

Keine Kommentare

Siemens EF 711 Series Betriebsanweisung Seite 115

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Kochfelder Siemens EF 711 Series