Starting node communication on a BSC line

To start node communication on a BSC line:

Enter the $S LINE(nnnn) command to start the specified NJE line(s), this is not required when the line(s) are specified on the NODE initialization statement.
Enter the $S N,LINEnnnn command or the $SN,N=nodename command to establish an NJE connection with an adjacent node by identifying the started BSC line upon which this system is to try to establish an NJE connection.

The system will try to sign on to whatever system is at the other end of the specified line by sending an NJE sign-on record over the line. The command will be ignored if the line is currently signed on for RJE or NJE activity.

Note: Before starting networking on a line, it is necessary that the line be started from both nodes using the $S LINE(nnnn) command. This is not required when the line(s) are specified on the NODE initialization statement.

The $S N,LINEnnnn command also allows you to specify a node password (up to 8 alphanumeric characters) that is to be transmitted in the sign-on record resulting from this command. If the password is omitted, the node password contained in the node information table entry for the local node is used. Each side of the connection must assign the same password for the line used in the connection. For information about establishing a BSC network connection, see z/OS JES2 Initialization and Tuning Reference, SA32-0992.

If the $S N command is unsuccessful, do the following:

Enter a $D U command to ensure that the BSC line is started.
- If it is not started, issue a $S LINE(nnnn) command.
If the line is active, issue a $E LINE(nnnn) command to stop the current activity.
Reissue the $S N command.

If this also fails (having been attempted from both nodes, if necessary), then:

Drain the line from both nodes using a $P LINE(nnnn) command followed by a $E LINE(nnnn) command.
Start the line from both nodes with a $S LINE(nnnn) command. (If a dial-up line is used, you will have to re-dial after issuing the $S LINE(nnnn) command.)
Enter the $S N command from one of the nodes.

When you wish to stop an NJE line after it completes its current activity, issue the $P LINE(nnnn) command.