FordGT90Concept
"I go fast!1!11!1!"
- Joined
- Oct 13, 2008
- Messages
- 26,259 (4.63/day)
- Location
- IA, USA
System Name | BY-2021 |
---|---|
Processor | AMD Ryzen 7 5800X (65w eco profile) |
Motherboard | MSI B550 Gaming Plus |
Cooling | Scythe Mugen (rev 5) |
Memory | 2 x Kingston HyperX DDR4-3200 32 GiB |
Video Card(s) | AMD Radeon RX 7900 XT |
Storage | Samsung 980 Pro, Seagate Exos X20 TB 7200 RPM |
Display(s) | Nixeus NX-EDG274K (3840x2160@144 DP) + Samsung SyncMaster 906BW (1440x900@60 HDMI-DVI) |
Case | Coolermaster HAF 932 w/ USB 3.0 5.25" bay + USB 3.2 (A+C) 3.5" bay |
Audio Device(s) | Realtek ALC1150, Micca OriGen+ |
Power Supply | Enermax Platimax 850w |
Mouse | Nixeus REVEL-X |
Keyboard | Tesoro Excalibur |
Software | Windows 10 Home 64-bit |
Benchmark Scores | Faster than the tortoise; slower than the hare. |
Max cable length for maximum transmission rate of the standard is 100 meters or 328 feet. The length of the cable doesn't impact speed, it impacts packet-loss which, if those packets were TCP, forces a retransmission of the packets which translates to reduced actual throughput.
When network switches are turned on, they auto-negotiate link speed, typically:
10 mbps
100 mbps
1000 mbps
It tries 1000 mbps and if packets are lost, drops to 100 mbps and tries again. If 100 mbps fails, it drops to 10 mbps and tries again. If 10 mbps fails, the connection is considered lost and it disables the transfer of data on the connection.
If the cable length is under 100m and it isn't carrying the full rated performance of the cable, some things may be going on:
1) One of the ends was not properly installed so twisted pairs are non-functional.
2) There's interference coming from outside of the cable, penetrating it. The power cables buried in walls are particularly troublesome for this.
3) There's something wrong with the network switch. There's a lot of shoddy switches out there that fall to the speed of the slowest connection. For example, it's rated 1000 mbps and has three 1000 mbps devices plugged in. The moment you plug a 100 mbps device into it, the three 1000 mbps devices also fall to 100 mbps. It's generally worth buying higher quality switches to prevent this behavior.
4) The cable is physically damaged (would require physical inspection of its entire length).
You don't even have to touch those bastards to fry. They electrify the air around them like lightning does.
When network switches are turned on, they auto-negotiate link speed, typically:
10 mbps
100 mbps
1000 mbps
It tries 1000 mbps and if packets are lost, drops to 100 mbps and tries again. If 100 mbps fails, it drops to 10 mbps and tries again. If 10 mbps fails, the connection is considered lost and it disables the transfer of data on the connection.
If the cable length is under 100m and it isn't carrying the full rated performance of the cable, some things may be going on:
1) One of the ends was not properly installed so twisted pairs are non-functional.
2) There's interference coming from outside of the cable, penetrating it. The power cables buried in walls are particularly troublesome for this.
3) There's something wrong with the network switch. There's a lot of shoddy switches out there that fall to the speed of the slowest connection. For example, it's rated 1000 mbps and has three 1000 mbps devices plugged in. The moment you plug a 100 mbps device into it, the three 1000 mbps devices also fall to 100 mbps. It's generally worth buying higher quality switches to prevent this behavior.
4) The cable is physically damaged (would require physical inspection of its entire length).
That's an understatement. Tower power lines like that are often in excess of 500,000 volts connecting power plants to substations and other power plants.Dude, those are high voltage lines ... when the voltage is in the range of couple of hundreds of thousands of volts, loss of 32 V over 5 km is 0.02 % loss ... and for say 220 V line the same loss over 5 km would be 16% loss. That's why we use high voltage over long distances.
You don't even have to touch those bastards to fry. They electrify the air around them like lightning does.