Planned Network Upgrade
Planned Network Upgrade
I'm planning to switch to 10 gigabit Ethernet. I have a few questions about making that change later. First, if I upgrade from Cat 5e to Cat 6a or 7, or use Infiniband, will my wiring need updating? Second, why am I only getting around 100 Mbps despite having Gigabit Ethernet support? Is this related to my ISP or the type of cable I'm using?
Infinitiband needs its own gadget to convert it to Ethernet when moving away from your network. It's usually safer to use Ethernet or fiber optics. The problem might come from where the connection is made, especially if both ends can only handle 100Mbits. It could also be due to damaged wiring or poor cable quality.
For a 10gbps connection, use Cat6 cables if the distance between your network device and switch is under about 30-40 meters. If you need longer distances, Cat6A is suitable up to the maximum allowed length by standards, which is 100 meters. The newest Ethernet standard, 802.3bz, defines speeds of 2.5 gbps, 5 gbps, and 10 gbps. Cards supporting these standards can handle 2.5 gbps with older Cat5e cables (using a similar data transfer method), but 5 gbps and 10 gbps require at least Cat6 cables. Therefore, ensure your network card and switch both support the desired speeds. If your router or switch only supports up to 100 mbps, or if the cable installation is incorrect—such as improper placement of wires—it may not function properly. For 1 gbps devices, you need all eight wires correctly positioned in the Ethernet jack; for higher speeds, both ends must be compatible.
The distinction between T568A and T568B lies in the wiring connections, but switching from B to A won’t change the cable type itself. Using a 500 ft roll of Cat 7 is a good choice for your setup. Regarding speed, a network switch doesn’t inherently boost speeds—it depends on the hardware and connection quality. A new router or modem might be needed if you're experiencing issues, but switching cables shouldn’t affect performance unless there’s a physical fault.
It doesn't matter which one you choose as long as the same type is used on both ends. When 100 mbps network cards were developed, the chips weren't very advanced, so if you wanted to link two computers directly with a network cable, you needed a special cable called a "crossover cable." With this, at one end of the cable, one pair of wires transmits data and another pair receives it—only two pairs or four wires are used for 100 mbps. The pairs connected to the transmitter of one card go into the receiver of the other. There are standard wire orders like T568A and T568B, but it doesn't matter as long as both ends match. Later cards could sense whether data was moving through a pair or not, making connections with crossover cables or regular Ethernet simple. With gigabit cards, things became automatic; no need for crossover cables to link computers directly—modern devices handle the pairing themselves. A network switch won't slow you down as long as its ports match the required speed. If your switch has gigabit ports, you'll enjoy gigabit speeds. Differences mainly come from wireless paths and access points, influenced by signal strength, antenna placement, walls, reflections, and other nearby signals. You'll achieve gigabit speeds between computers connected to the switch or router (providing gigabit ports), but internet speed will be limited by your provider—say 60 mbps download and 20 mbps upload, so external connections will reflect that limit. Don't buy a cat7 cable just yet; Cat6a works well for over 10 Gbps, and a quality Cat6a is preferable to a cheap Cat7.
As long as I have a 10 gigabit network card, a fresh router offering 10 Gbps connectivity, and upgraded Cat 6 wiring.