11.5 MBs a sec on a 10/100 Network----Good???

[johnrr6]

According to Performance Test 6.1---Network Testing Section
(similar to Qcheck----one PC acts as server---the other as client and data is sent and measured)

I'm getting an average of 11.5 megabytes a second transmission rate on my 10/100 speed network

I get virtually the same results from any computer I go to in the house---short or long runs

Is that pretty good---or pretty bad----or average for a normal 10/100 speed network?

I have no basseline in my head to compare it to----need your help/experience.

Thanks----John

[ctal]

11.5 megabytes/sec is 92 megabits/sec (8 bits/byte), compared to a theoretical maximum of 100 megabits/sec for 10/100 ethernet. Sounds good to me!

Regards,
-- Al

[SRTDodge05]

I get around 18-22 MB on 100 network, on gigabit im around 35-45 MB.

[ctal]

SRT -- I suspect those are full duplex numbers, at least for the 100 network, meaning that data is being transmitted in both directions at once, and the numbers represent the total of both. Unless I'm all mixed up, always possible!

From John's description it sounds like his numbers are single duplex (one way).

-- Al

[Aggemam]

- 1 gbit on my LAN.

[XJ.]

Yes, anything above 90% on Ethernet is very good.

[ctal]

Originally Posted by ctal

11.5 megabytes/sec is 92 megabits/sec (8 bits/byte), compared to a theoretical maximum of 100 megabits/sec for 10/100 ethernet. Sounds good to me!

I should have said "a theoretical maximum of slightly less than 100 megabits/sec," due to bits other than data that are used in the ethernet protocol (preamble, frame delimiter, addresses, etc).

-- Al

[shaihulud]

One caveat, that is a test from transmitter to receiver. It is not a true baseline. You are testing your possible maximum, which is good to see if the hardware is in check. In other words you know your peak.

I have seen 100Mb Ethernet hit maximum, a little over 12MB, but it is never a sustained throughput and a long amount of time. TCP/IP, or just networking in general, is bursty. Aggemam graph should show this. If I am correct, that too is just a theoretical amount. Not a true transmission of bytes from a medium to another.

[johnrr6]

So----based on this---I could at least assume that my wiring is fine with no "cable bends" or other things affecting the basic cabling....

Understand it may still react differently once I jump to a gigbit network....

Correct????

[SRTDodge05]

Originally Posted by ctal

SRT -- I suspect those are full duplex numbers, at least for the 100 network, meaning that data is being transmitted in both directions at once, and the numbers represent the total of both. Unless I'm all mixed up, always possible!

From John's description it sounds like his numbers are single duplex (one way).

-- Al

When i copy 1gb files from my pc to my server vista is reporting those numbers.

[shaihulud]

Basically, yes. When transferring from host to host you are first limited by bandwidth. Once bandwidth is excessive, as in gigabit Ethernet, you are limited by hard drives and sub system performance.

He is full duplex. The datum given is without a doubt full duplex.

[shaihulud]

Where did the edit button go!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I mean that he is without a doubt full duplex, but the datum given is not an aggregate, which usually as with all benchmarks, is half duplex. Aggemam's exmaple is perfect of what I and Ctal mean

[johnrr6]

Thanks Shal,

I've got Monday off and my wife will be gone so she won't be complaining "where is the Internet?"

I see a busy Monday in my future!!

On to gigabit!!!!!

[ctal]

Originally Posted by johnrr6

So----based on this---I could at least assume that my wiring is fine with no "cable bends" or other things affecting the basic cabling....

Understand it may still react differently once I jump to a gigbit network....

Correct????

Yes, I think that you've established that the integrity of the cabling is adequate for good performance at 100mbps, assuming that you've measured around 92mbps (11.5mBps) through all paths in both directions.

Originally Posted by SRTDodge05

When i copy 1gb files from my pc to my server vista is reporting those numbers.

Well, that sure sounds like a one-way transfer, but even without subtracting out control overhead 100mbps is only 12.5megaBytes/sec. So either your numbers for 100 mbps are somehow representing full duplex, or Vista is just reporting incorrectly for some reason.

Regards,
-- Al