Radware Alteon Application Manual page 793

Alteon Application Switch Operating System Application Guide
Bandwidth Management
Example Overwriting the TCP Window Size
The TCP window size set in the packet indicates how many bytes of data the receiver of that TCP
packet can send without waiting for acknowledgement. In network environments where congestion
is a common problem and traffic usually exceeds the configured BWM soft limit in a BWM contract,
the TCP window size may be overwritten to better accommodate the prevailing traffic rates. It would
be beneficial if the TCP traffic was slowed down by modifying the TCP window size rather than by
dropping TCP packets, which would cause retransmissions.
By default, the TCP window size is overwritten only when traffic exceeds the soft limit of the BWM
contract, and when the window size is above 1500 bytes. To overwrite TCP window size on a
contract, enter the following command:
>> # /cfg/bwm/cont 1/wtcpwin e
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Document ID: RDWR-ALOS-V2900_AG1302