12: Maintenance and Diagnostics Settings
XPort Pro User Guide
103
Protocol Stack Settings
In the Protocol Stack web page, you can configure TCP, IP, ICMP, SMTP and ARP.
TCP Settings
To configure the TCP network protocol:
1. Click
Protocol Stack
on the menu bar.
2. Click
TCP
.
Figure 12-4 TCP Protocol
3. Modify the following 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.
