40G-capable ports are labeled as XL-Ethernet (xl).
10G-capable ports are labeled extreme-ethernet (ex).
Oracle Switch ES2-72 has 18 QSFP+ ports that are 40G-capable. Ports on Oracle Switch ES2-72 are referred to as xl-ethernet 0/1-72.
Oracle Switch ES2-64 has 6 QSFP+ ports which are 40G-capable and 40 RJ45 ports which are 10G-capable. Ports on Oracle Switch ES2-64 are referred to as xl-ethernet 0/1-24 and extreme-ethernet 0/25-64.