Quidway WB2011, User Manual

Page: 132 / 157

Command Line Interface
6-52
6
fragmentation-length
This command configures the minimum packet size that can be fragmented when
passing through the wireless bridge.
Syntax
fragmentation-length < length>
length - Minimum packet size for which fragmentation is allowed.
(Range: 256-2346 bytes)
Default Setting
2346
Command Mode
Interface Configuration (Wireless)
Command Usage
• If the packet size is smaller than the preset Fragment size, the packet will
not be segmented.
• Fragmentation of the PDUs (Package Data Unit) can increase the reliability
of transmissions because it increases the probability of a successful
transmission due to smaller frame size. If there is significant interference
present, or collisions due to high network utilization, try setting the fragment
size to send smaller fragments. This will speed up the retransmission of
smaller frames. However, it is more efficient to set the fragment size larger
if very little or no interference is present because it requires overhead to
send multiple frames.
Example
rts-threshold
This command sets the packet size threshold at which a Request to Send (RTS)
signal must be sent to the receiving remote bridge prior to the sending bridge
starting communications.
Syntax
rts-threshold < threshold>
threshold - Threshold packet size for which to send an RTS.
(Range: 0-2347 bytes)
Default Setting
2347
Command Mode
Interface Configuration (Wireless)
Outdoor Bridge(if-wireless a)#fragmentation-length 512
Outdoor Bridge(if-wireless a)#