Confused about Mellanox switch?

I'm a bit confused about Mellanox line of switches when it comes to ethernet interoperability .

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The Mellanox SX6036 switch is listed as a "InfiniBand/VPI Switch System". Since VPI = Virtual Port Interconnect and in regards NICs defines it supports both Infiniband and Ethernet, does that mean the Mellanox SX6036 switch can also be used to switch regular ethernet traffic?

Or does it only switch ethernet traffic if you buy some unaffordable license for switch?

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If it matters, there's also a Mellanox SX6036G varriant which is a "Infiniband to Ethernet gateway'

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Links to product Info:
Product Brief PDF: http://www.mellanox.com/page/products_dyn?product_family=132&mtag=sx6025_sx6036
General Info: http://www.mellanox.com/page/products_dyn?product_family=132&mtag=sx6025_sx6036