TELNET interface
A TELNET interface, defined by the Host Interface parameter, has a set of required parameters that you must provide so that the record is read correctly, and also a set of optional parameters. Except for the Host Interface parameter, which you must specify first because it is position dependent, you can specify the parameters in any order, but the keywords must be provided. You must specify all required parameters for the TELNET interface. The TELNET interface is for use with the Open Systems Adapter-Express Integrated Console Controller for 3215 (OSA-ICC 3215) interface.
The following are required parameters:
- Host Interface
- The type of interface that you are using to communicate with the TPF system. For this, specify TELNET. You must specify this parameter first when defining a record in the configuration file because it is position dependent.
- Host TELNETD Address
- This is the host name or the Internet Protocol (IP) address of the OSA-ICC 3215 TELNET daemon (TELNETD). You can set up the OSA-ICC 3215 interface to allow only trusted IP addresses to connect. Have your system administrator verify that the TPF Operations Server IP address is in the trusted list.
The following are optional parameters:
- Command Retry Counter
- When the OSA-ICC 3215 interface is unable to send the TPF command to the host, the TPF Operations Server sends the same command to the TPF system again up to the counter specified before telling the operator that the TPF system rejected the command. This option does not apply when the logical partition (LPAR) is not active. The default value is 3.
- Host TELNETD Port
- This is the TCP port number for the TELNET daemon (TELNETD). The default value is 23.
- MCS Identifier
- A character used by the TPF system to identify Multiple Console Support (MCS) and to mark the prefix that contains the terminal address and the functional support console (FSC) indicators. The MCS identifier is represented by the grave accent (`) by default in the TPF system. If you do not need MCS, do not specify any value for the parameter.
- OSA ICC 3215 Session Name
- This is a unique name for the session on the OSA-ICC 3215 interface.
The maximum length for the session name is 25 characters. The session
name must contain non-blank ASCII characters and is not case sensitive.
When this parameter is omitted:
- You must enter the session name through the TPF Operations Server clients (consoles or automation programs) to complete the session connection
- The TELNET interface will not work properly in the dual connection environment if the OSA ICC 3215 session name is not defined.
- Session Reconnect Delay
- When the TELNET interface (client) disconnects, the TPF Operations Server tries to reconnect immediately. If the reconnect fails, it will delay before trying the connection to the TELNET server again by this amount. Valid values for the session reconnect delay are between 3000 and 60000 milliseconds. The default value is 5000 milliseconds. If zero is specified, the reconnect option will be disabled.