Controlling a network

Through network job entry (NJE), a user located at a node, or remotely attached to a node by a remote job entry (RJE) line, can use the capabilities of any other reachable node in the network. This topic describes the JES2 commands you use to control a network. (For an overview of NJE and RJE, refer to z/OS JES2 Initialization and Tuning Guide.)

The following tables list the tasks discussed in this topic and provide a cross reference to the detailed descriptions of the corresponding NJE commands.

Table 1. Controlling the Network
Task Command Location
Display the network activity $D NETWORK $D NETWORK - Display network activity
Reset networking devices $E NETWORK $E NETWORK - Reset current network devices
Purge networking devices $P NETWORK $P NETWORK - Purge current network devices
Start automatic device restart and NJE connection processing $S NETWORK $S NETWORK - Start automatic device restart and NJE connection processing
Halt automatic network connection and device processing $Z NETWORK $Z NETWORK - Halt automatic network connection and device processing and drain NJE devices
Table 2. Specifying Node Characteristics
Task Command Location
Specify the JES2 network environment for message, command, and data transmission among nodes $T NJEDEF $T NJEDEF - Control JES2 network environment
Display the JES2 network environment for message, command, and data transmission among nodes $D NJEDEF $D NJEDEF - Display the JES2 Network Environment
Define a symbolic destination name $ADD DEStid $ADD DESTID - Define a symbolic destination
Change the route code associated with a symbolic destination name $T DEStid $T DEStid - Control a JES2 symbolic destination
Delete a symbolic destination name $DEL DEStid $DEL DEStid - Delete a symbolic destination
Display subnets and node names $D SUBNET $D SUBNET - Display subnet connections
Display node attributes $D U,LINEn or

$D NODE

 $D U - Display the status of JES2-controlled devices

$D NODE(jnnnnnnn) - Display the characteristics of a node
Change node characteristics $T NODE $T NODE(jnnnnnnn) - Set the characteristics of a node
Table 3. Starting BSC Node Communications
Task Command Location
Start an NJE line $S LINExx $S LINE(nnnn) - Start a line
Establish an NJE connection with an adjacent node $SN,LINExx,

N=nodename

 $S N - Start node communication on a BSC line
Table 4. Starting SNA Node Communications
Task Command Location
Start the JES2/VTAM interface $S LOGON(n) $S LOGON - Start the JES2/VTAM interface
Start an NJE line $S LINExx $S LINE(nnnn) - Start a line
Start an SNA application-to-application session with another node $S N,A= $S N - Start node communication on an SNA line
Table 5. Starting TCP/IP Node Communications
Task Command Location
Start the JES2-TCP/IP interface $S NETSRV $S NETSRV(nnn) - Start a network server
Start an NJE line $SLINE $S LINE(nnnn) - Start a line
Start a TCP/IP session with another node $SN,S= $S N - Start node communication on a TCP/IP line
Table 6. Controlling the JES2/VTAM Interface
Task Command Location
Define the JES2/VTAM interface $ADD LOGON(n) $ADD LOGON(nn) - Add a logon
Start the JES2/VTAM interface $S LOGON(n) $S LOGON - Start the JES2/VTAM interface
Assign a password to the JES2/VTAM interface and diagnose SNA problems $T LOGON(n) $T LOGON(nnn) - Control the JES2/VTAM interface
Stop the JES2/VTAM interface $P LOGON(n) $P LOGON(nnnnn) - Stop the JES2/VTAM interface
Restart the JES2/VTAM interface $E LOGON(n) $E LOGON(nn) - Restart the JES2/VTAM interface
Table 7. Controlling the JES2-TCP/IP Interface
Task Command Location
Define the JES2-TCP/IP interface $ADD NETSRV $ADD NETSRV(nnn) - Add a network server
Start the JES2-TCP/IP interface $S NETSRV $S NETSRV(nnn) - Start a network server
Indicate which STACK or SOCKET to use $T NETSRV $T NETSRV(nnnnn) - Modify the attributes of a network server
Stop the JES2-TCP/IP interface $P NETSRV $P NETSRV(nnnnn) - Stop a network server
Restart the JES2-TCP/IP interface $E NETSRV $E NETSRV(nnn) - Restart a network server
Table 8. Defining and Changing Applications
Task Command Location
Define a new JES2 application $ADD APPL $ADD APPL - Define a VTAM application to JES2
Change an application's characteristics $T APPL $T APPL - Control JES2 applications
Table 9. Defining and Changing TCP/IP sockets
Task Command Location
Define a new socket $ADD SOCKET $ADD SOCKET(xxxxxxxx) - Add a socket
Change a socket's attributes $T SOCKET $T SOCKET (xxxxxxxx) - Control a socket
Table 10. Controlling NJE Lines
Task Command Location
Define an NJE line $ADD LINE(nnnn) $ADD LINE(nnnn) - Add line
Start an NJE line $S LINE(nnnn) $S LINE(nnnn) - Start a line
Disconnect an NJE line, assign a password, or diagnose NJE line problems $T LINE(nnnn) $T LINE(nnnnn) - Control a line
Restart NJE line activity $E LINE(nnnn) $E LINE(nnnnn) - Restart line activity
Stop an NJE line $P LINE(nnnn) $P LINE(nnnnn) - Stop a line
Table 11. Controlling NJE Static Connections
Task Command Location
Add static network connections $ADD CONNECT $ADD CONNECT - Dynamically add network connections
Display network connections that are defined to JES2 $D CONNECT $D CONNECT - Display network connections
Change static network connections that have been previously defined $T CONNECT $T CONNect - Change static network connections
Delete static connections $DEL CONNECT $DEL CONNect - Delete network connections
Table 12. Controlling NJE Devices
Task Command Location
Start an NJE device $S L(nnnn).JR(n)

     L(nnnn).JT(n)
     L(nnnn).SR(n)
     L(nnnn).ST(n)

 $S Lnnnn.xxn - Start an NJE device
Restart NJE device activity $E L(nnnn).JR(n)

     L(nnnn).JT(n)
     L(nnnn).SR(n)
     L(nnnn).ST(n)

 $E Lnnnn.xxn - Restart NJE device activity
Control work selection on an NJE device $T L(nnnn).ST(n) $T L(nnnn).ST(n) - Specify network SYSOUT transmitter characteristics
Cancel NJE device activity $C L(nnnn).JR(n)

     L(nnnn).JT(n)
     L(nnnn).SR(n)
     L(nnnn).ST(n)

 $C Lnnnn.xxn - Cancel NJE device activity
Stop an NJE device $P L(nnnn).JR(n)

     L(nnnn).JT(n)
     L(nnnn).SR(n)
     L(nnnn).ST(n)

 $P Lnnnn.xxn - Stop an NJE device
Table 13. Sending Messages and Commands Through the Network
Task Command Location
Send messages through the network $D M $D M - Send a message
Send commands to another MAS member $M n $Mnn - Send commands to other MAS members
Send commands to another RJE node $N n $Nnnnn - Send commands through the network
Display information about a job at another node $G D $G D - Display job information for a job at another node