Another popular solution in an environment where you might have to support six different vendors' equipment, some of which is closed source (juniper, etc) and demands certain SFP+ EEPROM codes, from one pool of spare equipment, is to purchase the optics with blank eeproms and a coding box to write the vendor ID code onto them over i2c bus as needed. There's four or five transceiver companies I can think of now which provide the solution to do that.