z/OS Communications Server: IP User's Guide and Commands
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NOop subcommand—Test the connection

z/OS Communications Server: IP User's Guide and Commands
SC27-3662-00

Purpose

Use the NOop subcommand to determine whether the foreign host is still responding.

Format

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>>-NOop--------------------------------------------------------><

Parameters

There are no parameters for this subcommand.

Examples

  • If the foreign host is responding, you receive one of the following responses:

    200 OK or 200 NOOP command successful.

  • If the foreign host does not respond or is not connected, you receive appropriate error messages, such as:

    EZA1534I Control connection with ipaddr dies.
    EZA1457I You must first issue the 'OPEN' command
    .

Usage

You can use the NOop command to keep a connection alive that would otherwise be disconnected if it were idle for longer than the system timeout period.

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