Lantronix XPORT PROTM 900-560 - Manual (Page 107)

12: Maintenance and Diagnostics Settings
XPort Pro User Guide 107
TCP Settings
To configure the TCP network protocol:
1. Select Protocol Stack on the menu bar.
2. Select TCP.
Figure 12-4 TCP Protocol
3. Modify the following settings:
Table 12-5 TCP Protocol Settings
Protocol Stack
TCP Settings Description
Send RSTs Click Enabled to send RSTs or Disabled to stop sending RSTs. TCP contains six
control bits, with one or more defined in each packet. RST is one of the control bits.
The RST bit is responsible for telling the receiving TCP stack to end a connection
immediately.
Note: Setting the RSTs may pose a security risk.
Ack Limit Enter a number to limit how many packets get received before an ACK gets forced.
If there is a large amount of data to acknowledge, an ACK gets forced. If the sender
TCP implementation waits for an ACK before sending more data even though the
window is open, setting the Ack Limit to 1 packet improves performance by forcing
immediate acknowledgements.
Send Data The Send Data selection governs when data may be sent into the network. The
Standard implementation waits for an ACK before sending a packet less than the
maximum length. Select Expedited to send data whenever the window allows it.
Max Retrans Enter the maximum number of retransmissions of a packet that will be attempted
before failing.