I’m confused about the speed of the ports of some Mellanox cards and the PCIe slot bandwidth they are installed on.
As I understand it a single 100G port is full duplex right ? Meaning you could have 100 + 100 G of traffic going on both directions.
How can you have a ConnectX-5 100Gbit dual port card sitting on PCIe 3.0 x16 slots ? PCIe 3.0 x16 can give you ~128Gbit of bandwidth so how is it possible to use the full bandwidth of this card on such slots ? As bidirectionally it could push 200 + 200 G right ?
I’m probably missing something obvious so asking for help.