
Customizing TCP Services
117358-A Rev. A 3-3
Setting Maximum Retransmission Timeout
You can specify a maximum value for the retransmission timeout. When one side
of a TCP connection sends a frame and does not receive an acknowledgment from
the other side of the connection within the timeout period, the sending station
retransmits the frame.
If you are transmitting on a low-speed network and you set the maximum
retransmission timeout value too low, the network may become congested, as TCP
retransmits unacknowledged frames that have not yet reached their destination.
Using the BCC
By default, TCP sets the maximum retransmission value to 240000 ms. To specify
a value for the minimum retransmission timeout, navigate to the TCP prompt and
enter:
max-rto
integer
integer
is a value from 15000 to 240000 ms.
For example, the following command sets the value for the maximum
retransmission timeout to 235000 ms.
tcp# max-rto 235000
tcp#
Using Site Manager
Complete the tasks in the following table to specify a maximum value for the
retransmission timeout.
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
choose Protocols.
The Protocols menu opens.
2. Choose Global Protocols. The Global Protocols menu opens.
3. Choose TCP. The TCP menu opens.
4. Choose Global. The Edit TCP Global Parameters window
opens.
(continued)
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