Valid item specifiers are as follows:
- req_buf_len<number> : specifies the default request buffer length
- rsp_buf_len<number> : specifies the default response buffer length
- i_dbcname<dbcname string> : specifies the default database computer name string
- max_num_sess<number> : specifies the maximum number of sessions allowed to be logged on at any time for a given single process.
- <option field><option value> : specifies the default value for the specified option.
The option field string is the declared option name, as given below.