Accton is an ODM in Taiwann. That stands for Original Device Manufacturer. You can read about ODMs on the Wikipedia page. It means that Accton is an actual manufacturer. They are also likely the source for several of the other products in this table, although some of those products may be running customized versions of the switch software. The data sheet shows this is a generic trident+ implementation. I found a copy of the Administrator's manual online. This is probably not the most current manual.