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Shotgunning two ethernet cards

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Name: RTAdams89
Date: August 14, 2004 at 11:30:51 Pacific
OS: xp home
CPU/Ram: na
Comment:

I have a gigabyte router. Currently I have 3 PCs connected to it. 2 of the PCs have gigabyte NICs in them. The third PC has 3 10/100 NICs in it (it used to be a server). Instead of buying a girabyte NIC for it, can I just connect all 3 of the 10/100 NICs to the router and use load balencing or some how shotgun the 3 NICs for an theoritical transfer rate of 300mbps? Is there a way to do thsi in windows XP, or do I need third party software?

-Ryan Adams
Ryan's
Custom Cables



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Response Number 1
Name: RTAdams89
Date: August 14, 2004 at 11:43:13 Pacific
Reply:

PS: I researched this on google and no once seams to think that it is possible. However in X-Setup Pro there is a tweak that says

"For WinNT/Win2000/XP: For systems with 2 Network Cards [NICs].

Checking Box enables Load Balancing; Unchecking [clearing] Box will disable Load Balancing."

That makes me think it is possible. Any ideas?

-Ryan Adams
Ryan's
Custom Cables


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Response Number 2
Name: Webbo
Date: August 14, 2004 at 12:05:08 Pacific
Reply:

You can bridge the connections, this will make the three ethernet connections show as just one which obviously makes IP addressing etc easier. However, I'm not sure if this increases the speed as I've never tried it. Perhaps someone who has can clarify this.


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Response Number 3
Name: pkokkinis
Date: August 14, 2004 at 12:11:58 Pacific
Reply:

very possible, but it depends on the drivers supplied by the manufacturer, no msft. I built up a Terminal Server that had two emedded Intel gig-nics, plus I added a third Intel gig-nic (different model number). Then I went to Intel's site and downloaded the driver for the embedded nics. This driver also recogized the 3rd nic and had the option of config'ing them as 3 seperate nics (on seperate net's, of course), or the option of running one nic with the others on stand-by for fault tolerance, or the option of Team load balancing witch creates one virtual nic from the three nics and communicates with the switch at 3Gbps one way! Way cool, and really fast!


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Response Number 4
Name: RTAdams89
Date: August 14, 2004 at 12:22:41 Pacific
Reply:

So what exactly do I need to do to get all my NICs working with load balencing?

-Ryan Adams
Ryan's
Custom Cables


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Response Number 5
Name: wanderer
Date: August 14, 2004 at 13:13:08 Pacific
Reply:

So are you saying you have a router that has gigabit switch ports?

And now you want to do adapter teaming [this is what it is called]?

Do you realize that if you had a full T1 coming in that you only get 1.54mbps data xfer? So even at 10mbps for your workstations you are way faster then what the wan can provide?

With that said you need to identify the nics manufacturer. If intel then just download their drivers and utilities. Go into the proset utility and configure adapter teaming.

One aspect of adapter teaming working correctly is the switch. I do gigabit fiber adapter teaming to a Nortel Passport switch. I don't believe a 10/100 router switch port has the sophistication to support adapter teaming properly but it certainly is worth a try.


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Response Number 6
Name: 808
Date: August 14, 2004 at 13:48:31 Pacific
Reply:

Save yourself the headaches..

Sell or give away the 3 10/100's and get another gigabit card!

$30 in headaches vs $30 gigabit card.
You decide...

808


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Response Number 7
Name: RTAdams89
Date: August 14, 2004 at 14:52:34 Pacific
Reply:

I'll take the $30 worth of headaches. :) I realise that my internet connection speed won't change, but my local area network is operating at 1000mbps, obviously if one computer onyl has a 100mbps NIC, it isn't using all the bandwidth it could have if it was using two 100mbps NICs. So far here is what I have done:

I installed and connected both NICs to my router. Then I went into network connections and bridged the two NICs. I then setup the network bridge properties to meet the requirements of my network (IP address, gateway, name servers, etc.). Is that all I have to do to get it to work? It seams to be working, but I can't really tell if I have double the bandwidth between my computer and the router.

-Ryan Adams
Ryan's
Custom Cables


0

Response Number 8
Name: RTAdams89
Date: August 14, 2004 at 15:02:32 Pacific
Reply:

After bridging the conenctions I ran the following bandwidth testes:

NIC1 only: 4403 Kilobits/second
NIC2 only: 4423 Kilobits/second
NIC1 and NIC2: 4744 Kilobits/second

It appears that my internet speed has inproved slightly (about 700KBps) with the two NICs bridged.

-Ryan Adams
Ryan's
Custom Cables


0

Response Number 9
Name: wanderer
Date: August 14, 2004 at 16:23:12 Pacific
Reply:

that is only 4.7mbps. That is a long way from 1000mbps.

4700kbs = 4,700,000bits = 4.7mbps [ignoring the difference between 1000 and 1024]

You sure your switch supports gigabit copper??? Sure doesn't look like it.


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Response Number 10
Name: RTAdams89
Date: August 14, 2004 at 17:25:32 Pacific
Reply:

That is my internet speed. IE, the speed from a webserver to my ISP to my cable modem to my router to my computer. My Local Area Network is much faster. I can send data on my LAN at about 170MBps (from the computer with 2 100MBps NICS). It used to only send/recieve at about 80MBps MAX.

-Ryan Adams
Ryan's
Custom Cables


0

Response Number 11
Name: 808
Date: August 14, 2004 at 19:18:05 Pacific
Reply:


OK, I have Tylenol and Bayer.

Take your pick!

808


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Response Number 12
Name: RTAdams89
Date: August 14, 2004 at 20:34:56 Pacific
Reply:

Don't need either. As I mentioned it works fine now. Thanks all.

-Ryan Adams
Ryan's
Custom Cables


0

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