Siemens SIMATIC NET SCALANCE W780 Series Configuration Manual page 286

Configuring with Web Based Management
6.6 "Interfaces" menu
● A-MSDU
Aggregated MAC Service Data Unit (A-MSDU)
Enables or disables that several MSDUs with the same destination address are bundled
into an A-MSDU and are sent together. This reduces the network load. Due to their
shorter maximum length A-MSDUs are more suitable for the bundling of several shorter
frames.
If this check box is disabled, A-MSDU data packets are received but not sent.
● A-MSDU Packet Size [Bytes]
Specify the maximum size of the A-MSDU data packet.
Range of values: 50 - 200 bytes
Default: 100 Bytes
● Guard Interval [ns] (only in Access Point mode)
Select the send pause that must be kept to between two transmitted OFDM symbols.
The following settings are possible. The selection depends on the selected transmission
standard.
– 400 (short)/800 (long): The setting 400 ns is optional. Depending on the signal quality,
– 800 (long): The send pause is 800 ns.
Procedure
Configure 802.11n settings on the access point
1. Enable the "A-MPDU" option.
2. Enter the required values in the "A-MPDU Limit [Frames]" and "A-MPDU Limit [Bytes]"
input boxes.
3. Enable the option "A-MSDU".
4. Enter the required value in the "A-MSDU Packet Size" input box.
5. Select the required value from the "Guard Interval [ns]" drop-down list.
6. Click the "Set Values" button.
Configure 802.11n settings on the client
1. Enable the "A-MPDU" option.
2. Enter the required values in the "A-MPDU Limit [Frames]" and "A-MPDU Limit [Bytes]"
input boxes.
3. Enable the option "A-MSDU".
4. Enter the required value in the "A-MSDU Packet Size" input box.
5. Click the "Set Values" button.
286
packets can be sent with a send pause of 400 ns or 800 ns.
SCALANCE W780/W740 to IEEE 802.11n Web Based Management
Configuration Manual, 08/2018, C79000-G8976-C267-13