Alvarion BREEZEACCESS SW VERSION 5.1 Manuale Utente

 

Menus and Parameters 

Operation and Administration 

 

The Performance Parameters menu enables defining a series of parameters that 
control the method by which traffic is transmitted through the wireless access 
network. 

The Performance Parameters menu includes the following parameters: 

„ 

RTS Threshold 

„ 

Minimum Contention Window 

„ 

Maximum Contention Window 

„ 

Multicast Modulation Level (AU only) 

„ 

Maximum Modulation Level 

„ 

Average SNR Memory Factor 

„ 

Number of HW Retries 

„ 

Burst Mode 

„ 

Adaptive Modulation Algorithm 

„ 

Concatenation Parameters 

4.2.6.5.1  RTS Threshold  

The RTS Threshold parameter defines the minimum frame size that requires an 
RTS/CTS (Request To Send/Clear To Send) handshake. Frames whose size is 
smaller than the RTS Threshold value are transmitted directly to the wireless link 
without being preceded with RTS frames. Setting this parameter to a value larger 
than the maximum frame size eliminates the RTS/CTS handshake for frames 
transmitted by this unit. 

The available values range from 20 to 4092 bytes for units with HW revision C or 
higher, and 20 to 2200 for units with HW revision A or B.  

The default value for SUs is 60 bytes.  

For AUs with HW revision C or higher, the default is 4092, and for AUs with HW 
revision A or B the default is 2200. It is recommended that these values be used 
to ensure that RTS/CTS is never used in the AU. Minimum Contention Window