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Gigabit - How does it work?

N

nuber101

n00b
Joined
Mar 6, 2006
Messages
10
A couple questions actually:

When I go to network connections, I see two lan or high-speed internet things going on:

1394 Connection
Local Area Connection

Im assuming the local area connection is for local area network connections and also internet. If so, what is the 1394 connection for?

Also, I checked the status on both of them and the Local Area Connection only says 100Mbps, and the 1394 says 400mbps, shouldnt it be 1000mbps if you have a gigabit motherboard? I know it has 10/100/1000 when I bought the motherboard, do I have to download a driver for it?
 
1. Yes, the default name for a NIC is "Local Area Connection", but it's still the way you're connecting to the internet. You can rename it if you want.
2. The 1394 connection is because you can use IEEE-1394 (firewire) to make a simple point-to-point network. It's set to work out the details with another firewire card when they're connected.
3. For 1000 Mbps transfers, you need the devices at both ends of the cable to be 1000 Mbps capable, and you need "jumbo frames" enabled. What's your computer connected to?
 
You don't need jumbo frames enabled but you do need 3 things for gigabit:

gigabit capable NIC
gigabit capable Switch
gigabit capable cables (Cat5e or above)
 
O[H]-Zone said:
1. Yes, the default name for a NIC is "Local Area Connection", but it's still the way you're connecting to the internet. You can rename it if you want.
2. The 1394 connection is because you can use IEEE-1394 (firewire) to make a simple point-to-point network. It's set to work out the details with another firewire card when they're connected.
3. For 1000 Mbps transfers, you need the devices at both ends of the cable to be 1000 Mbps capable, and you need "jumbo frames" enabled. What's your computer connected to?
Click to expand...

Mostly right, but you do not need jumbo frames enabled. Jumbo packets will give you a speed increase if everything on the network supports them, but otherwise it's going to slow transfers down when a device doesn't support them.
 
The 1394 connection is "Poor Man's Gigabit" :)

400mbps aint bad... I see 137mbit throughput going point-to-point.
 
O[H]-Zone said:
1. Yes, the default name for a NIC is "Local Area Connection", but it's still the way you're connecting to the internet. You can rename it if you want.
2. The 1394 connection is because you can use IEEE-1394 (firewire) to make a simple point-to-point network. It's set to work out the details with another firewire card when they're connected.
3. For 1000 Mbps transfers, you need the devices at both ends of the cable to be 1000 Mbps capable, and you need "jumbo frames" enabled. What's your computer connected to?
Click to expand...

Correct for the most part. But you DO NOT need to have jumbo frames enabled in order to use gigabit. You only enable jumbo frames if the device (switch) that you are connecting to supports it. Even if so, having jumbo frames not enabled won't limit you to gigabit speeds.

If this guy wants to connect at gigabit he just simply needs to connect a 5+ port gigabit switch up to his router.

A few people I know have this cheap non-jumbo frame switch. It works fine. Connect a cat5 from your router to this switch, then plug in your computers to this switch. You will then have gigabit! But just make sure that the OTHER computers on your network are ALSO on gigabit (Gbit network card, connected to Gbit switch), or you won't see anything past 100mb speeds.
http://www.newegg.com/Product/Product.asp?Item=N82E16833122140

Here is a cheap jumbo frame switch
http://www.newegg.com/Product/Product.asp?Item=N82E16817111038

Another cheap jumbo frame switch
http://www.newegg.com/Product/Product.asp?Item=N82E16833332003

Have more than 4 Gigabit computers on your network? Then look for a 8+ port switch.
 
Thanks for the response guys, how can I tell if my router supports gigabits? I have an old linksys router.
 
If its older, then you know it doesn't. However you can plug a cable from a gigabit nic to your linksys router however it will only do 10/100 speeds.

If you want to add gigabit you will need to add a switch that supports gigabit and plug all gigabit devices into that switch.
 
you also need fast drives. i'm only getting 37MB transfers due to the drive in my one desktop and my notebook.
 
BurntToast said:
A few people I know have this cheap non-jumbo frame switch. It works fine. Connect a cat5 from your router to this switch, then plug in your computers to this switch. You will then have gigabit! But just make sure that the OTHER computers on your network are ALSO on gigabit (Gbit network card, connected to Gbit switch), or you won't see anything past 100mb speeds.
http://www.newegg.com/Product/Product.asp?Item=N82E16833122140
Click to expand...

The Netgear GS605 supports 9 KB jumbo frames.

http://www.netgear.com/pdf_docs/GS600Series_Combo_DS_24Mar06.pdf

So does the D-Link DGS-1005D. I have the 8-port DGS-1008D and it performs well. I think they're being replaced by the DGS-2205/DGS-2208, which have less buffer memory (I'm not sure about the impact, if any), but also support 9K jumbo frames.
 
pre1014 said:
you also need fast drives. i'm only getting 37MB transfers due to the drive in my one desktop and my notebook.
Click to expand...

Fast drives don't hurt, but you don't need them. 37 MB/s is still more than 3X what you could do with 100 Mb/s in practice.
 
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