There is some confusion between the SNX-60x0-486T submitted to the Open Compute Project and the data sheet for the Alpha Networks part. It seems like Alpha Networks is describing a Trident2+ for OCP and the older Trident2 for their data sheet.
In a presentation to an OpenCompute working group on February 13, 2017 Alpha said that this switch is based on a Broadcom part code named Maverick The part number is BCM56768. Maverick is the name of a company acquired by Broadcom in 1999. There appears to be no relation between the the chip and the acquired company.