router->powerline->router/switch?<->nmt<->pc

[hungarian]

Hi all

I have a problem/question.

First my problem/setup
Our house has 2 stories. Upstairs is a WLAN/Router/Modem from Sagem.
Downstairs I have a PC, Istar NMT which are connected to each other by a plus network card in the PC, I am streaming from the pc via CABLE, no router nothing in there. The PC is connected to the router/modem/wlan by WIFI and working fine. The nmt streaming via cable works fine, even in HD. I can NOT wire the system though the house (upstairs to downstairs) by wire WIFI is my only chance and working fine.

What I plan to do:
From the upstairs wifi/modem/router I would like to Powerline downstairs, into a router. Connect, PC (for streaming to the NMT), NMT (streaming there AND getting internet connection to the NMT without having the PC running for internet connection).
The PC WIFI connection stays as is, as it works fine.

So the final question is: can I route the signal from my upstairs router by means of Powerline into a downstairs router (or switch) on which the nmt, the pc are connected (wire). The pc streaming to the NMT runs trough that wired router or switch (no Powerline). The internet connection to the NMT works by means of Powerline. Later on I might add a NAS to the router (might....)

The point why I ask this question is, that the router and Powerline stuff costs me quite some, and once bought it would be difficult to give it back.

Please let me know if you think if this would work, adn if yes or no, please point why(not). Dont get me wrong, I will trust your opinion, but I would like to understand fully what I am doing.

Thank you for reading, and even more thanks you^s for replying

Cheers

H

 

[thiggins]

Questions like these are easier to answer if you provide a simple network diagram.

Partial answer is don't use two routers; you need only one. Use a switch instead.

Yes, you can bridge two network segments using powerline. But it might not work depending on how much bandwidth you need. Give HD Streaming Smackdown: Draft 11n vs. Powerline a read.

When you say "streaming by cable", do you mean an a wired Ethernet connection? If so, is it gigabit or 10/100?

 

[hungarian]

Thank you for your reply thiggins.
I am not aware how I can do a network diagram.
Excel and the flowcharts? I tried and attached the file, not sure its understandable

So, the powerline would be exclusively for the internet connection. As I mentioned before, right now I have the internet connection wireless into the pc and bridged (not sure that is the right word) with a second network card (gigabit) and with a cat 5 cable connected to the nmt.

In the picture you can see what I plan instead.I take a "b line" over powerline to the powerline switch. connected to the switch are the pc, the Istar NMT and in the future a NAS all wired in to the powerline switch.

I am not sure yet what that means security wise and how I will make this setup safe, but I will find a way.

Question is would this work? I dont see a bottle neck for the connection between the switch -pc-Istar as they are wired, the only thing which could cause problems is the internet connection (I think with my limited knowledge).

Or is the switch actualy sucking bandwidth? and if yes how much? hd should be still ok, no?

I know its complicated, but I cant drill trough the ceilings and I can not route the cables outside the house.

Thank you all again for your time

H

 

[thiggins]

Your diagram is fine, thanks.

First, you can't have two connections from the router PC to the switch
without using spanning tree, which I think is beyond this discussion.
You will get a broadcast storm and bring down your network.

The question still is how much bandwidth do you need? If you are streaming
HD, you probably need ~20 Mbps peak, which powerline may not give you.
Again, please read the article that I previously linked.

My recommendation is to get the PC connected to your HD player by Ethernet.
Trying to stream HD via wireless or powerline will probably give you enough
bandwidth. Or at least connect the PC (which has the HD content) to
the powerline bridge via Ethernet. There will be too much bandwidth loss otherwise.

So the connection would look like (assuming that the router has a switch
in it):

PC ====>Router==>powerline ----powerline==>switch==>HD player, NAS, etc.

(==> equals Ethernet)

 

[hungarian]

Hi

I think you missunderstood me.I dont want a internetconnection trough the pc.
I will set the pcs network card and the internetconnection via wifi card to not shared.

The connection between pc and nmt is in the switch which is build in the powerline. Aside of this the only thing I use the powerline for is the Internet connection to the Istar NMT, and the build in switch to manage the flow between the pc<->nmt. There is no actual dataflow trough the powerline aside of the internet.
By now I get the internet also via the cat 5 cable from the pc via a shared connection, and this is crapola. Quite messed up. That is why I intended to get a "seperate" connection to the internet via the Powerline (plus build in switch).
Like this the pcs GIGABIT card is only serving as a server for the NMT via the build in switch, NOT via the Powerline itself, only its switch.

I did read the article you mentioned, but I dont think it has a connection to my problem, because the person in the article tried to stream trough the powerline. I will not do that, I will stream from the pc via the build in switch in the powerline-(Adapter) to the NMT.

I know it sounds very complicated but isnt realy, as soon as you grap my idea. Or lets say like this. I have the powerline (which exclusive function is to provide internet connection to the nmt) to the powerline I attach a switch. Attached to the switch are a pc and the nmt. Is it more understandable like this? Like this I get a. internetconnection (via powerline) at the NMT.The switch in arranges the dataflow for the streaming from the pc to the nmt (not the powerline does this, the switch does). Like this there shouldnt be a bottle neck, no?

I dont say I wont face problems with the double supply of internet to the pc (a. via powerline+switch b. trough wifi directly from the router), but if I set the network adapters of the wifi card and the Gigabit card in the pc to standard, so not shared I should be fine......or not?

If all goes wrong I will simply buy a small pc, connect that to the internet and smack in a bunch of Gigabite cards and let the pc do the routing and the NAS (I dont like the idea of a pc running day and night just as a router switch NAS)

I know I explain this very complicated, but I dont know any better way


Thank you again

H

P.S. here is your diagram refined by the actuals:

router::::::::::::::wifi:::::::::::::::::::::>pc
= (ethernet) ________________________= (ethernet)
=powerline----powerline============>switch==>HD player, NAS, etc.

the two = with (ethernet) are wired ethernet connections. once from the router to ethernet. Second time from the pc to the switch.

:::equals wifi

 

[thiggins]

Going back to the original PDF diagram you sent, you should be able to eliminate the wireless connection to the PC, since you will have a connection via powerline.

The question still remains how much bandwidth do you need from the Internet?

Whatever you decide, make sure you get powerline adapters as a kit or from the same product family and make sure they use 200 Mbps technology, i.e. either HomePlug AV or DS2's 200 Mbps.

 

[hungarian]

Thank you again. I am not sure I will kick off the wireless for the internet. Will see how it works, any advice on the what to buy front?

I think this isnt what I need right?

Netgear XE104 Powerline 4-Port Switch 85 MBit/s

it says it can handle 200 over powerline but I am not realy sure.
On the other hand it says 85mbit....i love that kind of decription says its green but its blue but maybe brown

arghh...

Please let me know what you advice, I have some netgear stuff and I am pretty happy with it..

Thank you

H

 

[thiggins]

I think this isnt what I need right?

Netgear XE104 Powerline 4-Port Switch 85 MBit/s

No. If you want Netgear, then you can't get 200 Mbps powerline and a switch in one adapter. The options are the XAVB101 or XAVB101 kit, which is just two XAVB101's.

Linksys does have what you want:
PLK300 Powerline AV Network Kit or PLS300 Powerline AV 4-Port Network Adapter