Telnet commands are TCP/IP commands. You must specify the procedure
name on all commands; otherwise, the command is processed by the default
TCP/IP stack instead of by the Telnet procedure. For example, assuming
that the Telnet procedure name is TN3270E, the profile display command
is as follows:
D TCPIP,TN3270E,PROFILE
If the procedure does not exist or if you incorrectly type the
TCPIP keyword, then the command is assumed to be a TCP/IP command
and a TCP/IP error message is displayed.
You use the following VARY and DISPLAY commands to change and monitor
Telnet functions and to debug problems. Telnet VARY and DISPLAY commands
are described in z/OS Communications Server: IP System Administrator's
Commands.
- Use Telnet VARY commands to change the state of Telnet ports,
enable or disable the use of certain Telnet LU names, and manage diagnostic
tools.
- VARY TCPIP,tnproc,QUIESCE,PORT blocks
any new connection requests but allows existing connections to continue
activity.
- VARY TCPIP,tnproc,RESUME,PORT ends the
quiesce state and allows new connection requests.
- VARY TCPIP,tnproc,STOP,PORT ends connections
on the port and closes the port.
- VARY TCPIP,tnproc,OBEYFILE starts, restarts,
or changes a port by updating the Telnet profile. Use the VARY TCPIP,tnproc,STOP
and VARY TCPIP,tnproc,OBEYFILE commands
to stop a Telnet port and then restart that port or start a new port
without stopping the TCP/IP stack. You can also use these commands
to increase the level of participation in the Telnet XCF group. A
Telnet server that has joined the group becomes a standby LUNS, even
if you used an OBEYFILE command to specify it to be a primary LUNS.
Tip: When you issue a VARY TCPIP,tnproc,OBEYFILE
command, the TELNETPARMS and BEGINVTAM blocks are required for each
port that you start or modify.
- VARY TCPIP,tnproc,ACT,luname activates
LUs for use by the Telnet server. Specify ALL for luname to
activate all inactive LUs with one command. This command has no effect
on the VTAM® state of the LU.
- VARY TCPIP,tnproc,INACT,luname deactivates
LUs for use by the Telnet server. If an LU is already in use, the
command fails. This command has no effect on the VTAM state of the LU.
- VARY TCPIP,tnproc,DEBUG,OFF turns off
all debug activity that might have been turned on to debug a problem.
- VARY TCPIP,tnproc,ABENDTRAP sets an
abend trap based on unique Telnet return codes set in Telnet modules.
- Use Telnet VARY commands to change the state of a LUNS, and to
enable or disable the use of certain LU names by a LUNS.
- VARY TCPIP,tnproc,LUNS,START starts
the takeover process by which a standby LUNS becomes the active LUNS.
- VARY TCPIP,tnproc,LUNS,QUIESCE instructs
a standby LUNS to stop monitoring the active LUNS. In case of a LUNS
failure, this Telnet server will not be a takeover candidate. The
Telnet server must be a takeover candidate for you to make changes
to the LUNS using the OBEYFILE command.
- VARY TCPIP,tnproc,LUNS,RESUME ends the
quiesce state and instructs a LUNS to resume monitoring the active
LUNS. In case of a LUNS failure, this Telnet will be a takeover candidate.
- VARY TCPIP,tnproc,LUNS,ACT,luname activates
LUs for use by the LUNS. Specify ALL for luname to
activate all inactive LUs with one command. This command has no effect
on the VTAM state of the LU.
- VARY TCPIP,tnproc,LUNS,INACT,luname deactivates
LUs for use by the LUNS. If an LU is already in use, the command fails.
This command has no effect on the VTAM state
of the LU.
- Use Telnet DISPLAY commands to review classic Telnet information.
- D TCPIP,tnproc,PROFile displays summary
or detail information about parameter statements from the TELNETGLOBALS
or TELNETPARMS blocks.
- D TCPIP,tnproc,OBJect displays summary
or detail information about mapping statements from the Object perspective.
- D TCPIP,tnproc,CLientID displays summary
or detail information about mapping statements from the Client Identifier
perspective.
- D TCPIP,tnproc,CONN displays summary
or detail information about client connections.
- D TCPIP,tnproc,INACTLUS displays all
LUs that were deactivated by the operator or by Telnet as a result
of OPEN ACB or multilevel security problems.
- D TCPIP,tnproc,STOR displays the maintenance
level of a module or the amount of storage used by Telnet.
- Use Telnet DISPLAY commands to review information about Telnet
in an XCF group.
- D TCPIP,tnproc,XCF<,GRoup> displays
the status of all members of the Telnet XCF group.
- D TCPIP,tnproc,XCF,STats displays the
performance status of the XCF Telnet server. If the Telnet server
is a LUNS, the performance statistics between it and all LUNRs are
reported.
- Use Telnet DISPLAY commands to review information about Telnet
performing as a LUNS.
- D TCPIP,tnproc,LUNS,OBJect displays
summary or detail information about shared LUNR Objects on the LUNS.
- D TCPIP,tnproc,LUNS,INACTLUS displays
all the LUs that are inactive on the LUNS.