Max Performance & Speed of Twisted Pair Cable: Identifying Crossover vs Straight & Usage Scenarios

I have such a quick question. Can the "twisted pair" cable reduce the transfer in some way? To how many? What is the max speed over a twisted pair?
And how to know a crossover cable from a simple one and what happens if I connect a router-router, a pc -router with a crossover cable instead of a straight one and vice versa?

The speed of a 5e 4-pair cable is 1gbit.
Whether or not there will be a cross, it is not very important, unless you have 10 years old equipment, then it does matter. Currently, every device has an auto mdi / x

As far as I know, it can lower if the cable is too long (> 100 m), but I haven't checked it in practice. The longest one was about 25m. As for max. bandwidth then i don't know.

smario11 wrote:

The speed of a 5e 4-pair cable is 1gbit.

10 Gbit / s after Cat 6 / 6a.

And they are used in communication with her, I have a telephone and neostrada, why, despite the 10 / 20Mb contract, the internet has a maximum of 5MB / s or in another 2Mb location? If any twisted pair allows 100Mb?

Added after 58 [seconds]:

So the cable between the router-> router has no effect that the internet has 5Mb / s instead of 20?

No, you have internet down 20Mb / s, so it can work as well as 0.5 and 20

Internet 5MB / s = 40Mb / s. that's first. Second, questions why 2Mb / s not 10Mb / s should be directed to Orange. The operator does not build a network based on the 5e cable. There are many topics on the forum about Orange networks and the technical requirements to achieve certain speeds. The infrastructure is decisive and it depends on the operator.

But why is it now, there used to be always as much as is in the contract.
I also have a twisted pair connected to the house from TP? What executioner?
If the twisted pair allows 100Mb / s, why do we have a maximum internet speed of 2 to 5Mb / s in our area. 10 is probably no one.
I understand that the twisted pair connecting my computer does not make my speed 5Mb / s? Does it cause?

It's not a twisted pair Ethernet that goes to you, only a telephone line. It is true that it also uses a twisted pair of wires, but this is a completely different world. If you have a DSLAM to you, e.g. 4km, it is attenuation, interference, infrastructure quality etc. cut speed nicely. Not to mention the limitations of the ADSL technique itself.

okular766 wrote:

I understand that the twisted pair connecting my computer does not make my speed 5Mb / s? Does it cause?

Certainly not.

okular766 wrote:

But why is it now, there used to be always as much as is in the contract.

There was always a "do", the line just did. The connection quality deteriorated, and that's it. I also have 6Mb / s once, 4.5Mb / s once, sometimes it drops to 2Mb / s.

I have little 5Mb / s all the time, why do they offer at least 10 if, for example, in a village near me they give max 1 or 2Mb / s, is it possible for them to give so much? And how come a guy from the same village gives a radio 10, 20Mb / s, there is no optical fiber there, and he probably has a net from TP.

okular766 wrote:

I have little 5Mb / s all the time, why do they offer at least 10 if, for example, in a village near me they give max 1 or 2Mb / s, is it possible for them to give so much? And how come a guy from the same village gives a radio 10, 20Mb / s, there is no optical fiber there, and he probably has a net from TP.

Read the contract once or twice then look for information on the electrode, I guarantee that you will fall out of thirst faster than you will read all the topics. And the guy does not have to miraculously give 10 or 20 Mb, but he can have the switchboard under his breath and good cables. In order for you to quickly understand what is going on, I will use an advertisement from TV. "The wire you have, the internet you have". Limited to 10 or 20Mbps. You apparently have a weak wire, and so does the internet.

But you wrote yourself with a twisted pair for PLN 1 = 1m provides 1GB / s

You are not limited by the twisted pair that you have from the modem to the computer, but the Orange cables from the exchange to the modem and the data transmission technology.

the technology is probably high because ADSL and not a modem
How to spr. where is the headquarters?
If I take Netie, will I have more or the same?

So I'll never get more than 5Mbps again? There is nothing to delude yourself? Why do neostrada / netia charge PLN 30 for the maintenance of the tp line every month?

okular766 wrote:

If I take Netie, I will have more or the same?

So I'll never get more than 5Mbps again? There is nothing to delude yourself? ?

Who knows that? It depends on the condition of the cables, how much to DSLAM, interference from the environment ... Anything on the line and it can change for better or worse. In fact, according to my observations, even the season of the year matters. (Although I do not fully understand the mechanism of this phenomenon.) The only method is to check, the rest is almost reading coffee grounds.

okular766 wrote:

But you wrote yourself with a twisted pair for PLN 1 = 1m provides 1GB / s

Have you read my previous post? I do not think so...

okular766 wrote:

the technology is probably high because ADSL and not a modem

ADSL is a modem technique. It is further a modem, just more advanced and using a different infrastructure on the operator's side than the old analog dial-ups. But, as I wrote a few lines before and as others wrote, it all depends on the "cable".

It's me, since I have ADSL, I have no hesitation. As at the beginning of the contract, they gave 2 meters, it was 2, if 5 is 5, the speed does not change. I have 1-1000 Mb as at the beginning of the contract.

Well, I think I have some 20 km to the headquarters, because I doubt that it will be closer to it. And I always thought that the cable provides at least 100Mb / s, because that's what the cheapest twisted pair provides.

How long can a cable modem go? 100 only? And then there will be no date on it? Is it enough to provide the cheapest router after 100m and you can pull the wire 100m again?

http://www.morele.net/belkin-kabel-rj45-bez-o...-5e-utp-do-2m-niebieski-a3l791b02m-blu-65194/
Is such a cable connecting the PC to the net is ok? How much does he allow? Is it crossover or simple?

Dude, a bit of initiative and 30 minutes of googling will answer your questions. Yes, a twisted pair cable can have 100 meters, it was designed to create a LAN or local network. You can put a router or a switch after 100 meters and pull 100 meters again. As for the link provided, you have answers to your questions there, so why parrot here?

Colleague, understand that you must not mix the local speed (in the LAN), which is in practice limited by the capabilities of the equipment used (passive and active) Ethernet with the speed of the WAN link (i.e. what your ISP - your Internet operator uses) to provide the Internet.

Also, do not mix bits with bytes (a byte is 8 bits) - we give the speeds of serial interfaces in bits (or in bauds - symbols) per second - bytes will be 8 times less, respectively.

Internet connection where you have a guaranteed bandwidth, the so-called CIR (http://pl.wikipedia.org/wiki/Committed_Information_Rate) is quite expensive and usually in the case of consumer lines this parameter is defined at a very low level or even equal to 0, i.e. the operator does not guarantee the speed will not fall below a certain value.

Also, do not confuse how your link is configured - the fact that you can send, for example, up to 10Mbps does not mean that the operator has always guaranteed you 10Mbps - the operator only compiled the link parameters with 10Mbps, but it is possible from the local situation (both things related to the link and the overall load) backbone) depends on the actual transmission speed which is variable.

Oh, and with neostrade 10 / 1Mb, can I download full and send full or only 1 or 2?

Why is it talked about 100/10 100Mb / s network cards and 10 of what?

okular766 wrote:

Oh, and with neostrade 10 / 1Mb, can I download full and send full or only 1 or 2?

Why is it talked about 100/10 100Mb / s network cards and 10 of what?

There are symmetrical and unbalanced links, some are full duplex, others are not.
For you this means that the ADSL link is an unbalanced link, it offers you a faster download speed than upload speed (e.g. 10 Mbps download and 1 Mbps upload).

Network cards are 100/10 because they can work in 100Mbps and 10Mbps Ethernet modes, usually Gigabit Ethernet cards are 1000/100/10, so depending on the quality of the connection they can work in one of the modes - such as 2 or 3 cards in one.

And you asked how to recognize a crossover cable - it is crossover when on one side of the plug the orange pair is where in the other plug (opposite side of the cable) there is a green pair - the blue and brown pairs are always in the same places - not crossover - the orange and green pairs on either side of the cable will always be in the same place.

Oh, but I can download these 10Mb at the same time and send 1Mb at the same time? is either this or that?
because when I send the download, I have 0

okular766 wrote:

Oh, but I can download these 10Mb at the same time and send 1Mb at the same time? is either this or that?
because when I send the download, I have 0

At the same time - transmission in ADSL is frequency-divided.

Also remember that when you download, you also send. Packets always go both ways. If you "clog" your uploads, then your downloads will be "clogged".
ADSL technology is max 8/1Mbits ADSL2 + to 24/1 (from annex M is 24 / 1.5Mbit / s)
Do not mix this technology with LAN and cat 5,6,7 twisted pair, because ADSL works in one pair. LAN uses 2 pairs of 100Mbit / s or 4 pairs (100Mbit / s)

It seems to me that you are asking about something else and you get the answers to the wrong question :(

I will try to explain the basic principles to you.

1. The method of connection limits the speeds possible on the contract in advance, but it is the contract that determines the speed you will get. Do not try in today's "marketing" times to set your speed by technology ..... you have to read the contract and be sure that they want to put you in a bottle ... and a very small bottle

2.Technology is developing, so today it is possible, for example, 10Mbit, but tomorrow it may be 100Mbit ... and if the technology fails, other cables will be pulled.

3. If you want faster internet, you need to negotiate / find a better contract and there is nothing to transfer because the data may be limited later, both because of the contract and because of the technology not related to your connection. Imagine, for example, a water supply network in which the pipes to the recipient are thick enough to take a lot of water, but the pipes somewhere along the way are too thin ... then you will not get as much water as your pipe allows, but as much as it allows on the way.

Try to ask what you want to know. You have already received so much information that you probably can ...... ASK THE QUESTION AGAIN, so that we do not go around in circles.

Well, I can not download 5Mb and send 1Mb at the same time, it works for me, not both. Anyway, what is this UP for, rather, it is unnecessary because who needs 1 or 4Mb / s of sending if someone normally browses the net?

So if it was 10Mb for me, they would have to re-lay the cables to my house? They probably won't. How to spr. where is the nearest headquarters, probably more than 20km in my opinion.

Upload is necessary. Even if you only view websites, in order to view them you have to "ask" for them and this is Upload. If you don't have Upload, you won't ask for the next page, you won't confirm that it has arrived ... etc.

okular766 wrote:

How to spr. where is the nearest headquarters, probably more than 20km in my opinion.

ADSL works up to about 7km max (and also on 0.8mm cores) and at this distance about 256kbps can be achieved.
Enter your line parameters from the router / modem.

okular766 wrote:

Well, I can not download 5Mb and send 1Mb at the same time, it works for me, not both.

As I wrote before, packets "fly" in both directions. to download something, first there must be a SENT packet with a request to RECEIVE something.
If you are uploading at full speed, the packet with the download request will go to the upload queue and will be sent with a delay, resulting in a slower download speed.

okular766 wrote:

Anyway, what is this UP for, rather, it is unnecessary because who needs 1 or 4Mb / s of sending if someone normally browses the net?

As someone normally browses the net, only 2 / 0.25Mbit / s is enough for him. Which will be left unused most of the time anyway. (page download takes about 5-15 seconds)

maybe sometimes he is satisfied with such speeds, but it just so happens that I work in a company that "gives" the Internet. My perception of the 1/4 ratio is based on the traffic statistics and observation of what standard blacksmiths need.
The ratio of 1/10 you provided is used only by elderly people who, at most, browse the mail, send transfers and maybe even start the chicken coop from time to time.

Quote:

Upload is necessary. Even if you only view websites, in order to view them you have to "ask" for them and this is Upload. If you don't have Upload, you won't ask for the next page, you won't confirm that it has arrived ... etc.

Why should it confirm that it has arrived?

Oh, how does satellite internet work, and there are such, it receives from the sky and sends how? because signals are not sent to the sky, it is like saying that a satellite converter for receiving TV SAT sends something, and it only receives a GPS receiver or a FM radio, TV.

Quote:

ADSL works up to about 7km max (and also on 0.8mm cores) and at this distance about 256kbps can be achieved.
Enter your line parameters from the router / modem.

There is no bank, only fields and forests ... And where are these parameters?

And why smith 1/4 if he doesn't publish files for ego etc?

okular766 wrote:

So if it was 10Mb for me, they would have to re-lay the cables to my house? They probably won't. How to spr. where is the nearest headquarters, probably more than 20km in my opinion.

Not the switchboard, but the DSLAM, to be specific: