What about a Dual SFP card?
What about a Dual SFP card?
I wanted to know if using this on a PCIe 4 setup would really give me 10 Gbps from both ports at once. What should I look for? https://www.amazon.com/Ethernet-Broadcom...06X9T683K/
PCIE probably won't be the problem. Just know PCIE numbers are in MBYTE units, so it's really complicated to use two ports at those speeds. The biggest issue is making sure your disk or file system works fast enough for that. You also have limits on using two ports at the same time with your OS.
I am going to use this for my router. I have used Linux routers before, for over 10 years now. This is my first time thinking about using 10 G speeds. There will be 10 G fiber coming from the data center and then out to a 10 G switch. It should just pass the packets through. You talk about limits when using 2 ports on the same operating system. Wouldn't Linux just see it as two different interfaces?
Linux handles things better than Windows usually. On Windows, everything still works perfectly even if you plug two totally separate networks into one PC. But most folks try to connect both ports together or put them on the same Wi-Fi network. That's really tricky with Windows and it often breaks things.
There are several other home datacenter forums online. You should check those places too. A lot of fiber stuff people buy used. I'm not sure which ones to pick but there are lots of options and nuances here. Ten Gigabit (10G) used cables aren't super expensive from what I know. Also keep an eye out for older gear that uses way more power than it needs. If you don't really need 10G, it probably isn't worth the trouble. Usually, the best choice is what data centers used a lot and are currently replacing because it ends up being pretty cheap to buy second-hand. Most of it costs a fortune new. Yes, you can get both ports working at full 10G speed in both directions at the same time if you use LACP (which is the standard bond mode that works with many switches). With one connection on just one NIC, you only get 10G there; but if you connect two Linux machines together and try different bond types to push packets across both NICs, it's not very common or popular. If you need more than 10G for a single connection, you should look at 40G or 100G instead.
I am trying to get 10 gigabytes per second on every port because I am using it as a router card. According to what I read, if you put one PCIe x8 card in there, it won't give you the full 10 Gbps on each side even with a PCIe 4.0 card. A single PCIe 4.0 card would only make sure that you get 16 gigabytes per second total. So do I need two cards to reach my goal? Is this right?
If you check how well V2 performs, look at the link on Wikipedia about PCI Express history and changes. The card uses a really fast x8 slot that has 4GB per second, which equals thirty-two gigabytes each second. That means you can get twenty gigabytes of data flowing through it. But remember—you absolutely need to use an x8 slot for this setup.