Gigabit Ethernet

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Guest

Nowadays, many motherboard has gigabit lan feature. Is it faster in term of
transfer data than the regular 10/100 lan when using windows explorer? Or is
it faster when download or upload large file through internet?

Wilson Chu
 
Wilson said:
Nowadays, many motherboard has gigabit lan feature. Is it faster in term of
transfer data than the regular 10/100 lan when using windows explorer? Or is
it faster when download or upload large file through internet?

Wilson Chu
Click to expand...

It is much faster on data transfers on the local LAN, assuming you also have a gigabit switch or hub, during computer-to-computer transfers.

The Internet is typically not going to be any faster for residential users because even a 100Mbit network adapter is much much faster than any residential broadband Internet connection. So, the choke point in your Internet speed is your ISP.

However, high quality network adapters often offload some networking tasks (e.g. IPSEC) from the CPU and operating system.

carl
 
--
Dave

"...high quality network adapters often offload some networking tasks (e.g. IPSEC) from the
CPU and operating system" -- Are server NICs not workstation NICs and tend not to be
embedded on a motherboard unless it is a server platform.

One Server NIC I liked was made by Intel. It had a RISC i960 CPU for assymetrical
multi-processing and would clock double the 33MHz 32bit PCI bus to 66MHz. I found it very
efficient and installed it on a Server and aymantec Enterprise Ghost platform hosting Ghost
image files.

Intel also makes the IPSEC processor cards .

Dave




Wilson said:
Nowadays, many motherboard has gigabit lan feature. Is it faster in term of
transfer data than the regular 10/100 lan when using windows explorer? Or is
it faster when download or upload large file through internet?

Wilson Chu
Click to expand...

It is much faster on data transfers on the local LAN, assuming you also have a gigabit
switch or hub, during computer-to-computer transfers.

The Internet is typically not going to be any faster for residential users because even a
100Mbit network adapter is much much faster than any residential broadband Internet
connection. So, the choke point in your Internet speed is your ISP.

However, high quality network adapters often offload some networking tasks (e.g. IPSEC) from
the CPU and operating system.

carl
 
Please not that the high-speed Internet access (cable or xDSL) that you can
easily get have not reach 10 base T speeds. Gigabit is mainly now for high
volume transfers between local PCs on your network.
 
Wilson said:
Nowadays, many motherboard has gigabit lan feature. Is it faster in term of
transfer data than the regular 10/100 lan when using windows explorer? Or is
it faster when download or upload large file through internet?
Click to expand...

On the Internet only with recent, very fast connections. Not your
regular DSL or cable one.

On a direct machine - machine connection you may get a bit faster than
on 100, but will really be limited by the speed of direct DMA access to
the drives, so don't expect too much
 
David H. Lipman said:
--
Dave

"...high quality network adapters often offload some networking tasks (e.g. IPSEC) from the
CPU and operating system" -- Are server NICs not workstation NICs and tend not to be
embedded on a motherboard unless it is a server platform.

One Server NIC I liked was made by Intel. It had a RISC i960 CPU for assymetrical
multi-processing and would clock double the 33MHz 32bit PCI bus to 66MHz. I found it very
efficient and installed it on a Server and aymantec Enterprise Ghost platform hosting Ghost
image files.

Intel also makes the IPSEC processor cards .

Dave
Click to expand...

Yeah, I've been using a 3Com 3CR990-TX-97 card for years. Now that card is in the running in my Windows Server 2003 machine and I'm currently running dual built-in Intel 82547GI Gigabit Ethernet Controllers on my main desktop machine.

carl
 
Carl:

I'm curious...
What's the max. bandwidth of the PCI bus and who is the manufacturer of the dual built-in
Intel 82547GI motherboard ?

--
Dave




David H. Lipman said:
--
Dave

"...high quality network adapters often offload some networking tasks (e.g. IPSEC) from the
CPU and operating system" -- Are server NICs not workstation NICs and tend not to be
embedded on a motherboard unless it is a server platform.

One Server NIC I liked was made by Intel. It had a RISC i960 CPU for assymetrical
multi-processing and would clock double the 33MHz 32bit PCI bus to 66MHz. I found it very
efficient and installed it on a Server and aymantec Enterprise Ghost platform hosting Ghost
image files.

Intel also makes the IPSEC processor cards .

Dave
Click to expand...

Yeah, I've been using a 3Com 3CR990-TX-97 card for years. Now that card is in the running
in my Windows Server 2003 machine and I'm currently running dual built-in Intel 82547GI
Gigabit Ethernet Controllers on my main desktop machine.

carl
 
Nice. Should have at least 4.25Gb/s backplane.
Running both E-ports at Full-Duplex would require it.
Would work nicely with an Ultra320 64bit PCI SCSI card but I see it has embedded SATA. Have
you benchmarked the performance of your SATA sub-system ?

--
Dave





Here is my motherboard:
http://www.supermicro.com/products/motherboard/P4/E7210/P4SCi.cfm

I over-simplified the ethernet controller descriptions, but you'll see exactly what I have
there.

carl
 
David H. Lipman said:
Nice. Should have at least 4.25Gb/s backplane.
Running both E-ports at Full-Duplex would require it.
Would work nicely with an Ultra320 64bit PCI SCSI card but I see it has embedded SATA. Have
you benchmarked the performance of your SATA sub-system ?
Click to expand...

No, I haven't. If you have a link to a tool that will do that, I'd be more than happy to give it a whirl. However, for my purposes, "good enough" is the only performance requirement and I currently only have one disk and therefore no employing striping.

carl
 
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