*/

        SmbTransport t1 = tree.session.transport;
        SmbTransport t2 = dest.tree.session.transport;

        if( t1.snd_buf_size < t2.snd_buf_size ) {
            t2.snd_buf_size = t1.snd_buf_size;
        } else {
            t1.snd_buf_size = t2.snd_buf_size;
        }

        bsize = Math.min( t1.rcv_buf_size - 70, t1.snd_buf_size - 70 );