I need to design a redundant connection to a PC acting as server. There will be two LAN switches (interconnected by means of a crossed cable) and the PC which should have a dual-port NIC.
What do I need to look out for when purchasing the hardware (PC with dual-port NIC)?
I assume the PC is standard and have seen that dual-port NICs are available, but are there e.g. different kinds of dual-port NICs?
What about the “soft part” - is there any special SW (besides the driver) required to support such a card and the required function, i.e. automatic switchover in case of a single-point of failure in the connection (e.g. one LAN cable broken or one LAN switch failed)?
Any advise appreciated.