The compute board has 2 100Gbps ports, one connects to a client machine, the other server machine which runs HTTP server. Client machine generates HTTP requests to the HTTP server and all traffic go through this compute board.

So given this setup, I wonder what is the upper bound of L2 throughput of the board? Let's assume the board's internal bus and processing are more than enough to handle 200Gbps throughput, and client and server machines are both powerful enough to saturate the board.

I think the upper bound is 100Gbps. But somehow I am not so sure, is it possible a 100G port can handle 100G ingress and 100G egress at the same time? If so, that means the upper board is 200Gbps, is that right?