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Author Topic: Gigabit performance  (Read 13917 times)

twallen

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Gigabit performance
« on: June 01, 2010, 12:02:48 PM »

How can I connect my DNS-323 to a 100mbit modem/router and get gigabit speeds to it and my PC? Can I hook up a gigabit switch to the router then connect my PC and the 323 to it?

Any help appreciated.
« Last Edit: June 01, 2010, 12:08:07 PM by twallen »
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gunrunnerjohn

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Re: Gigabit performance
« Reply #1 on: June 01, 2010, 12:47:26 PM »

Connect a gigabit switch to the router, connect all the network devices to the gigabit switch.  Problem solved. :)
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

dannycalgary87

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Re: Gigabit performance
« Reply #2 on: June 01, 2010, 02:36:25 PM »

If you have a 100mbit connection, you're router should already have a gigabit switch on it. If it doesn't I'd consider getting one.
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gunrunnerjohn

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Re: Gigabit performance
« Reply #3 on: June 01, 2010, 03:44:14 PM »

I'm sure he was talking about the ports on the router, not the ISP service.
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

cklassen

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Re: Gigabit performance
« Reply #4 on: June 01, 2010, 09:41:16 PM »

also, you'll never get/reach gigabit speeds with the DNS-323, even if using it back to back with the end device.

i believe the maximum speed reported here on the forums was about 122mbps.
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fordem

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Re: Gigabit performance
« Reply #5 on: June 02, 2010, 04:22:52 AM »

also, you'll never get/reach gigabit speeds with the DNS-323, even if using it back to back with the end device.

i believe the maximum speed reported here on the forums was about 122mbps.

If network speeds are what we're discussing, then I've actually seen as high as 400mbps to/from a DNS-323.  If file transfer speeds are what we're discussing, then the number drops to around 250mbps.

As far as I'm concerned, once you cross the 100mbps threshold, it's gigabit speeds - can you transfer 122mbps on a 100mbps LAN?
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cklassen

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Re: Gigabit performance
« Reply #6 on: June 03, 2010, 07:54:23 PM »

never said you could, was just pointing it out there for him.
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fordem

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Re: Gigabit performance
« Reply #7 on: June 04, 2010, 04:59:57 AM »

never said you could, was just pointing it out there for him.

Never say never  ;)
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RAID1 is for disk redundancy - NOT data backup - don't confuse the two.

sioban

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Re: Gigabit performance
« Reply #8 on: June 04, 2010, 08:38:53 AM »

also, you'll never get/reach gigabit speeds with the DNS-323, even if using it back to back with the end device.

i believe the maximum speed reported here on the forums was about 122mbps.

It depends which protocol you are talking about, I've made some iperf tests with it and was able to reach 230 Mbits unidirectionnal (bi-dir is really bad, sureley because of the network cables)

After that, my cables are only CAT 5 certified and I've used the chipset of my motherboard for network connections, so I think I should be able to go further but I'm satisfied of that perfs.

Remember that Cat 5E cables are certificed for 350 Mbits, they may be able to handle more, but that's pure luck.
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pkarlos_76

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Re: Gigabit performance
« Reply #9 on: June 28, 2010, 06:07:01 PM »

If network speeds are what we're discussing, then I've actually seen as high as 400mbps to/from a DNS-323.  If file transfer speeds are what we're discussing, then the number drops to around 250mbps.

As far as I'm concerned, once you cross the 100mbps threshold, it's gigabit speeds - can you transfer 122mbps on a 100mbps LAN?

Actually theoretical maximum is 128 MB/s not 122 mb/s, in essence he is probably meaning that 122 MB/s is the highest he has seen on the forums reported. The BIG DIFFERENCE between MB and mb/Mb is capitalization of the second letter, Uppercase is bytes and lowercase is bits and there are 8 bits in a byte. And no you can't exceed a 100 mb/s on a 100 mb port, you need a gigabit router or switch, with the gigabit devices connected to it to even come close to the theoretical maximum of 128 MB/s ....thats Megabytes btw... :)
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fordem

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Re: Gigabit performance
« Reply #10 on: June 28, 2010, 06:42:30 PM »

Actually theoretical maximum is 128 MB/s not 122 mb/s, in essence he is probably meaning that 122 MB/s is the highest he has seen on the forums reported. The BIG DIFFERENCE between MB and mb/Mb is capitalization of the second letter, Uppercase is bytes and lowercase is bits and there are 8 bits in a byte. And no you can't exceed a 100 mb/s on a 100 mb port, you need a gigabit router or switch, with the gigabit devices connected to it to even come close to the theoretical maximum of 128 MB/s ....thats Megabytes btw... :)

Just a suggestion - at least familiarize yourself with the topic being discussed before chiming in ...

He says (and I quote) "i believe the maximum speed reported here on the forums was about 122mbps."

To those of us who've used a DNS-323, there is no doubt whatsoever that he does in fact mean 122 megabits/second - the idea that a DNS-323 might be able to somehow achieve 122 MegaBytes/second is - quite frankly - ludicrous.
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RAID1 is for disk redundancy - NOT data backup - don't confuse the two.

whywouldyoudothat

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Re: Gigabit performance
« Reply #11 on: July 21, 2010, 04:22:21 AM »

I had a similar problem. The router was gigabit but often would not transfer faster than 100mbit speeds. I connected everything to a gigabit switch instead and then one connection to the router. I now get 35-40MB reads and 15-20MB writes on the DNS-323. Cat6 cables all the way. All connected properly and tested. Was previously no higher than 12MB reads/writes. It still on occasion gets slower.
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gunrunnerjohn

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Re: Gigabit performance
« Reply #12 on: July 21, 2010, 05:27:41 AM »

I now get 35-40MB reads and 15-20MB writes on the DNS-323.
In your dreams! ;)
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.

Yasmin

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Re: Gigabit performance
« Reply #13 on: July 22, 2010, 05:53:44 AM »

Please bear with me, I am new to this.

My current setup is like this:

Cable Modem> Router> Giga-bit-Switch> Everything else (2 Computers, D-link 323, Xbox-360)

With this setup I am getting a Read write speed of 10MB/sec from 323. All cables and router are gigabit.

Your consensus it to have setup like this for faster speed?

Cable Modem> Giga-bit-Switch> Router>Everything else (2 Computers, D-link 323, Xbox-360)

Yasmin
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gunrunnerjohn

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Re: Gigabit performance
« Reply #14 on: July 22, 2010, 05:57:57 AM »

Nope, your configuration is correct.  You can't put the switch in front of the router or you'll have no file sharing.
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Microsoft MVP - Windows Desktop Experience
Remember: Data you don't have two copies of is data you don't care about!
PS: RAID of any level is NOT a second copy.
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