Two or more wlan interfaces at the same time
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I was wondering. I have a wifi card in the X60. I have a couple of usb
wifi dongles. How do I make the Network Manager use two or three at the
same time?
They can be used for a slight increase of wifi output with one router.
Or with two and point some trafic (the web) on one and the rest on the
second connection.
Your WIFI, it will connect one dongle or device, one per, who ever logs first. 2or 3 at the same time will not work from your PC or laptop. Your router is the only capable device to connect multitude devices in different channels and band.. The traditional Routers most of the time, there is only for most part 3 connections, Either one per band B,N,G { 2.4 MHZ. 5MHZ and guest}.
> Your WIFI it will connect one dongle or device one per, who ever logs
> first. 2or 3 at the same time will not work.
Why? Isn't a wifi dongle just another network card?
What you want to do is near impossible, those variables that I mention either you need to accept and deal with it.
As far as I know, in IEEE 802.11 the access point has a special status when operating in infrastructure mode, unlike in IEEE 802.3 (Ethernet), where there is no such distinction, so it's not about the wireless NIC (network interface controller) being a “network card” (We usually use the term “NIC” in networking).
It's commonly the case that the Internet connection bandwidth is smaller than that of the LAN, so increasing your LAN bandwidth will have almost no impact on your Internet experience. If you need a fast LAN, then I suggest using 1000BASE-T Ethernet (1 Gb/s), but if you're looking to increase your Internet speed, you should not bother increasing your LAN speed unless it's already the limiting factor.
With Ethernet you can do link aggregation and increase digital bandwidth. This is possible because you're adding more communication media between the devices. With 802.11 below 802.11n, the access point uses a single band between all devices, and the limiting factor is the analog bandwidth[1], so there's nothing to be gained by adding more devices, and I don't know if link aggregation is even supported for it at the link level, but it'd be useless. From 802.11n, this may be different (I *think* that a device may use only a part of the analog bandwidth on which the AP listens, so having several devices in parallel operation may improve performance, but I don't if this is supported). If you want to use several NICs at once, look for “link aggregation”. You will most likely have to do manual configuration (With iw, iwconfig and ipconfig, instead of NetworkManager).
I prefer by far wired to wireless networks. Wired networks are generally faster, much more reliable and easier to use without proprietary software.
[1] The original meaning of bandwidth is this, the “width” or range size of the radio-frequency band used, which is directly related to the information rate, see the Shannon–Hartley theorem.
Me too, I prefer wired than wireless. I don't see why people spend thousands of dollars in a PC or laptop, yet they prefer WiFi, yet WIFI HAS ITS OWN PURPOSE and design, just as Wired.
> Me too, I prefer wired than wireless. I don't see why people spend
> thousands of dollars in a PC or WIFI, yet they prefer WiFi, yet WIFI HAS
> ITS OWN PURPOSE, just as Wired.
In this case why are you high-jacking this thread?
> media between the devices. With 802.11 below 802.11n, the access point
> uses a single band between all devices, and the limiting factor is the
> analog bandwidth[1], so there's nothing to be gained by adding more
But I have a 802.11n.
My recommendation is the same: Look up into “link aggregation”, “[GNU]/Linux wireless link aggregation” (You can search for “Linux” given the widespread naming mistake), etc... I can't help with the details. Maybe somebody else in the forum can help you. Good luck.
I am a translator!
whaaaaaaaaaat?
W--h--a--t?
I don't get this.
If you have an antenna which is too bad for receiving a certain signal, it's no use buying a second antenna which is just as bad as the one I already have.
It's like... you can't record a certain sound signal with microphone type A because it's not loud enough, well a second type A model is no use then... you can't "plug them together" and suddenly hear something.
Are you sure this is possible with wifi cards? Can you explain how it works?
Maybe they get rid of some noise by using both signals since it's a stochastic disturbance, but actually i expect this effect to be extremely small and nobody would notice.
quantumgravity
Maybe artificial Intelligence will work better for that WiFi.
Computer science
Stochastic ray tracing is the application of Monte Carlo simulation to the computer graphics ray tracing algorithm. "Distributed ray tracing samples the integrand at many randomly chosen points and averages the results to obtain a better approximation. It is essentially an application of the Monte Carlo method to 3D computer graphics, and for this reason is also called Stochastic ray tracing."[citation needed]
Although most computers are deterministic machines, their complexity makes deterministic analysis impossible. Consequently, stochastic forensics analyzes computer crime by viewing computers as stochastic processes.
I know about Monte Carlo Simulations, and I also know about light ray tracing; it was interesting to read that they got both combined but...could it be... that you wrote just completely random stuff without any connection to my post whatsoever??
> I don't get this.
> If you have an antenna which is too bad for receiving a certain signal,
Please DO mark where is there anything about that.
Well, you wanted to combine several wifi cards in order to improve your connection, didn't you?
"How do I make the Network Manager use two or three [wifi cards] at the
same time?"
"They can be used for a slight increase of wifi output with one router."
In my post i talked chose "having no connection" as an example because i thought my point would become more comprehensible that way.
It may be doable in principle (use several 802.11 receivers to more accurately reconstruct the signal), but it's not possible in practice. As far as I know, at the level that the NIC interfaces (USB, PCI-e or similar) all the information usable for this end is already lost, and partially damaged packets are not even relayed to the user software (operating system) but just retransmitted or dropped. If you have bad signal strength then using multiple NICs won't help; switch 802.11 channel or better yet, switch to wired instead.
As a workaround you can reduce your NIC transmission rate with “sudo iwconfig wlan0 rate 1M” (To set wlan0 to 1 Mb/s). This doesn't affect the access point transmission rate, and the NIC should do this automatically, but it doesn't always happens as it should (There is rarely such problem with wired networking[1]). This may make the network faster because if noise/signal strength is the problem, there will be less packet loss. Do your own testing.
Regards.
[1]: Unless the cable isn't well made (especially if it was crimped unskillfully) or there is a lot of electromagnetic interference, but in that case, wireless network would likely be far worser and nothing can be done, while with wired network you can switch to shielded wire.
> As a workaround you can reduce your NIC transmission rate with “sudo
> iwconfig wlan0 rate 1M” (To set wlan0 to 1 Mb/s). This doesn't affect
> the access point transmission rate, and the NIC should do this
> automatically, but it doesn't always happens as it should (There is
> rarely such problem with wired networking[1]). This may make the network
> faster because if noise/signal strength is the problem, there will be
> less packet loss. Do your own testing.
I was thinking that Trisquel could use MORE than one network card.
The bad signal is assumed by an idiot who high jacked the thread.
According to yourself, you asked the question because several wifi cards together
"[..] can be used for a slight increase of wifi output with one router"
which itself is a statement that doesn't make any sense in the first place (how should you increase the _output_ of your _router_ by adding something to your laptop?) so i was trying to guess what you were talking about;
you should refrain from participating here if you can't express yourself and resort to insults because of that.
I learned by now that you're a troll and i won't reply to any of your posts anymore; please be aware that other members will do the same if you don't change your attitude;
I am a translator!
there's really no need to be impolite tris, especially given the fact that your question has a peculiar quality of dumbness..
jodiendo you are such a troll! are you ever serious?
p.s - I heard that the count of Monte Cristo once used the stochastic ray from Monte Carlo to wreck havok in a small village of Bubbuntu! He didn't succeed but was very happy to have tried
:)
I am a translator!
quantum - I was just trolling in a "jodiendo style" !! hehe
:)
funny how coincidences sometime occur!!
regards
Supertramposo and Quantum
Could you read my Official Invisible water mark of trolling?
I was trying to help in the most comprehensive way to understand simplistic answers.
Yet, some humans suffer from dystrophy at their finger tips and mental incapacitation in researching question.
Do you know that marine mammals communicate to each other using their echo Sonar one at a time? Just like routers.
I am a translator!
troll
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