Beware. "Jumbo" has waaaay too many meanings / byte sizes of MTU (Maximum Transmission Unit).
Good page on "Jumbo" hardware
(16128, 14336, 10240, 9234, 9216, 9192, 9180, 9194, 9148, 9004, 9000) byte MTU Ethernet "Jumbos"
NOT Jumbo Frame Clean Networking Gear
(7K, 4500, 4480, 4476, 4470, 3900, 2450, 2025, 2018, 2000, 1548 ("Baby Jumbos"), 1546, 1534, 1532, 1508, 1500) byte MTU