AUTOLOG Statement

The AUTOLOG statement identifies other virtual machines to be started by the TCPIP virtual machine when it begins execution.

The first AUTOLOG statement of a configuration file replaces the existing AUTOLOG list. Subsequent AUTOLOG statements in the same file add to the list.

Read syntax diagramSkip visual syntax diagram AUTOLOG user_id 0 ENDAUTOLOG

Operands

user_id
The name of a virtual machine that the TCPIP virtual machine should autolog. If a user ID is not valid, TCP/IP will display an error message.
0
A constant. For compatibility with prior releases of TCP/IP for VM, any arbitrary string is accepted.

Examples

The following example shows how to include two servers in the AUTOLOG statement. 
Autolog
    FTPSERVE 0         ; FTP Server
    SMTP     0         ; SMTP Server
EndAutolog

Usage Notes

  • The ENDAUTOLOG statement specifies the end of the AUTOLOG list.
  • A virtual machine in the AUTOLOG list is terminated and restarted by TCP/IP whenever the stack is restarted. TCP/IP uses the CP FORCE command to terminate a virtual machine and the CP XAUTOLOG command to start a virtual machine.
  • For servers connected to the stack via VMCF, TCP/IP frequently checks to ensure that each virtual machine in the AUTOLOG statement is logged on.
  • The number of times the TCP/IP stack will restart a particular server is governed by the MAXRESTART statement.
  • If the AUTOLOG list is empty or if the AUTOLOG statement is omitted, TCP/IP does not attempt to start any of the higher-level servers, such as FTP, MPRoute, or REXECD. Each server must be started manually.
  • Once a virtual machine in the AUTOLOG makes a connection to the TCP/IP stack, it is expected to maintain its connection. If all of the connections from a virtual machine are terminated, the stack assumes that a problem has occurred and attempts to reestablish the connection (by terminating and then restarting the virtual machine in question).
  • If a virtual machine in the AUTOLOG list also has a PORT statement reserving a TCP or UDP port, but does not have a listening connection or is not accepting packets on that port, TCP/IP attempts to restart that virtual machine.

    If the PORT statement for a virtual machine specifies NOAUTOLOG, this restart will not be attempted. Please note that NOAUTOLOG will not prevent a restart of the virtual machine stemming from circumstances unrelated to the termination of the listening connection.

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