Both the 100GBASE-CR10 and 100GBASE-SR10 are phased out 100G interface types, or  technology which transmits Ethernet frames at 100 gigabits per second..
40 Gigabit Ethernet (40GbE) and 100 Gigabit Ethernet (100GbE) are groups of computer networking technologies for transmitting Ethernet frames at rates of 40 and 100 gigabits per second (Gbit/s), respectively. 100GBASE-CR10
100GBASE-CR4
100GBASE-CR2 100GBASE-SR10
100GBASE-SR4
100GBASE-SR2 
