3Com 3032 Configuration Manual page 365

Configure the size of the receiving and sending
window for TCP Socket.
The Synwait timer's timeout ranges between 2~600 seconds, with a default value
of 75 seconds. The Finwait timer's timeout ranges between 76~3600 seconds,
with a default value of 675 seconds. The value of window-size ranges between
1~32Kbytes, with a default value of 4Kbytes.
Configure TCP Performance
tcp window size
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