Anyone speed tested powerline adapters?

were

no matter how fast your device is, you can only transmit data as fast as your slowest portion route can handle.

Home nics only come in 3 speeds 10, 100, and 1000Meg. Router switches are often 100Meg. Non of these are rate adaptive, and they do not transmit slower data packets when connecting to slower networks, or faster data to faster networks. The data is buffered, then frames transmitted at 10, 100, 1000 - the network card link speed. To get the effect of slower speed, less packets get sent in a second.

On 5mb adsl line, on leaving your modem, then router, and switch (all in one device - that BT box), the data is buffered till it makes a packet and that packet is transmitted at full 100mb network link speed, but in a second only for 5 packets out of the 100 available packets will be sent giving a throughput of 5mb/s. If connected to a 100mb san, this will use full bandwidth of 100 out of 100 packets (on a 100mb network)

The problems is where we get away from digital network standards, and go to modems and homeplug adapters that support varying frequency and tones, a more analogue system which is often is rate adaptive. If you 1GB san and switch and a 500mb or 1000mb Homeplug then you are likely to only get 100mb connection to the nic, (they could use Gigabit connection to deliver 500mb, but there is a financial cost and house wiring being imperfect too may not make financial sense?). Just read the unhappy user reviews here of the 1gb homeplugs due to bad marketing and misunderstanding https://www.amazon.co.uk/Belkin-Powerline-1Gbps-Networking-1000mbps/dp/B0046MKOOK

With perfect wiring and 2Gb mimo homeplugs, a minimum number of homeplugs (or you will get collisions) it may be able to come closer to 1gb ethernet

I would expect that Homeplugs rated at 1000, 500, 250 and 200 to all give around 100Mb/s. I would assume from the more expensive top down guess and say that the higher end will be better in noisier and larger environments, but I have no proof in this. If any of above are able to connect and work with gigabit nic switches in 1 gb mode, i would expect more than 100mb/s, but I am cynical about this and even a 1000 rated homeplug is only 500mb each way

System

were wrote: »

On 5mb adsl line, on leaving your modem, then router, and switch (all in one device - that BT box), the data is buffered till it makes a packet and that packet is transmitted at full 100mb network link speed, but in a second only for 5 packets out of the 100 available packets will be sent giving a throughput of 5mb/s. If connected to a 100mb san, this will use full bandwidth of 100 out of 100 packets (on a 100mb network)

Oh. Deary. Me. Quite clearly you don't know how networking works, not even in the slightest. If what you say is true then every first person online shooter would be unplayable given that the data transmitted by a typical shooter is in low single kilobytes a second.

Data isn't buffered unless the receive rate exceeds the send rate. Packets are retransmitted as fast as they are received. Data is lumped into packets before it is sent by the source. Each packet contains information about its size. As soon as the router or switch receives it it retransmits it assuming there's not an overload situation.

Please educate yourself: https://computer.howstuffworks.com/question5251.htm

were

Tarambor wrote: »

Data isn't buffered unless the receive rate exceeds the send rate. Packets are retransmitted as fast as they are received. Data is lumped into packets before it is sent by the source. Each packet contains information about its size. As soon as the router or switch receives it it retransmits it assuming there's not an overload situation.

two different networks working at different speeds - something will be have to be buffered, while other side will have to wait for data to be complete. I am not saying the data is going to be held for 10 years till something is full and only then be released, but you are converting from a system that is often a 100mb Ethernet and to a power cable network of a different speed, will add on a few milliseconds, conversion is never free.

mgfvvc

were wrote: »

two different networks working at different speeds - something will be have to be buffered, while other side will have to wait for data to be complete. I am not saying the data is going to be held for 10 years till something is full and only then be released, but you are converting from a system that is often a 100mb Ethernet and to a power cable network of a different speed, will add on a few milliseconds, conversion is never free.

Packets may be buffered, but the only conversion involved is of speed. A packet comes in and goes out as the same packet albeit at a different speed. Routers and switches do not combine small packets into larger packets, even if they are buffering the small packets.

forgotmyname

All network is 1000, nothing slower. From the speeds i maybe better with a 5ghz wireless dongle.

Its currently wired but the wire is visible, and i would like to remove it.

I know the 500 / 1000 powerline plugs wont get anywhere near that, seen reviews where a pair plugged into a double socket barely crack 100mb.

I changed to cable quite a while ago before 5Ghz came out, i was transferring larger files directly to that computer. But now i use a NAS box. So im not sitting waiting for files to transfer.

Going to try a 5ghz wifi dongle and see how the speed compares.

Thanks