START statement

Use the START statement to start a device or interface that is currently stopped. This statement is usually specified at the end of hlq.PROFILE.TCPIP.

Requirements:
  • VTAM® must be active to START a device or interface with TCP/IP.
  • Each device or interface to be started needs a separate START statement.
Tips:
  • You can also use the VARY TCPIP,,START command to start a device or interface.
  • The START statement can also be used in a VARY TCPIP,,OBEYFILE command data set to start the following:
    • A newly-defined device or interface
    • A device or interface stopped with the STOP statement
    • A device or interface that was never successfully started

Syntax

Read syntax diagramSkip visual syntax diagramSTART device_nameinterface_name

Parameters

device_name
The name of the device to start. This should be the same device_name specified on the DEVICE statement.
interface_name
The name of the interface to start. This should be the same interface_name specified on the INTERFACE statement or the name of a dynamically created interface, such as an IQDX interface.

Steps for modifying

Modification is not applicable to this statement.

Examples

This example shows START statements that start device LCS1. 
START LCS1

Usage notes

  • TCP/IP has a maximum of 255 non-VIPA started devices.
  • There is no maximum number of static VIPA interfaces, but the maximum number of dynamic VIPA interfaces is 1024.
  • The START statement is not valid for virtual devices or interfaces. When you use the DEVICE and LINK statements for IPv4, a virtual device is started automatically when a HOME entry is defined to it. When you use the IPv4 INTERFACE statement or when you use IPv6 , a virtual interface is started automatically when an INTERFACE statement is defined. The virtual device or interface never leaves the started (active) state.
  • The START and STOP statements are processed after all other statements within the initial profile or VARY TCPIP,,OBEYFILE command data set.

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