To customize the terminal's TCP interactions, you can change the TCP performance parameters described in this section.The default settings work properly for most installations. You should not need to adjust these parameters.
You can adjust the buffers used by the terminal in sending and receiving TCP packets. The default of 4096 bytes works well for sending images. For text-oriented clients, 2048 bytes works better.
These parameter settings should correspond to the TCP windows advertised by the host.
Possible Values |
Result |
---|---|
default | 4096 |
integer | Size of the receive buffer (in bytes). Range: 1024 - 65535. |
Possible Values |
Result |
---|---|
default | 2048 |
integer | Size of the send buffer (in bytes). Range: 1024 - 65535. |
The tcp-connect-timeout parameter specifies the amount of time that must elapse between a TCP connection attempt and a lack of response before failure is declared (Setup -> Change Setup Parameters -> TCP -> Connect Timeout).
Possible Values |
Result |
---|---|
default | 75 |
integer | Elapsed time (in seconds) between TCP connection attempts before failure is declared. Range: 1 - 4294967295. |
The tcp-max-retransmissions parameter specifies the number of retransmissions on a TCP connection before failure is declared (Setup -> Change Setup Parameters -> TCP -> Maximum Retransmissions).
Possible Values |
Result |
---|---|
default | 12 |
integer | Retransmissions on a TCP connection before failure is declared. Range: 1 - 4294967295. |
The tcp-default-linger-time parameter specifies the default time interval during which TCP attempts reliable transmission of outstanding data on the connection's transmit queue after local software closes a connection (Setup -> Change Setup Parameters -> TCP -> Default Linger Time). This timer is optional and higher-level software can configure it for each connection.
Possible Values |
Result |
---|---|
default | 120 |
integer |
Time (in seconds) that TCP continues to attempt transmission after the local software closes the connection. Range: 1 - 4294967295. |