Use the bsub -I option to submit batch interactive jobs, and the bsub -Is and -Ip options to submit batch interactive jobs in pseudo-terminals.
Before you submit an interactive job, you need to find out which queues accept interactive jobs with the bqueues -l command.
SCHEDULING POLICIES: NO_INTERACTIVE
SCHEDULING POLICIES: ONLY_INTERACTIVE
If none of the above are defined or if SCHEDULING POLICIES is not in the output of bqueues -l, both interactive and batch jobs are accepted by the queue.