Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




54 posts

Master Geek
+1 received by user: 3


Topic # 179172 30-Aug-2015 07:58
Send private message

Hi there. I am wanting to make a tool for work to determine the maximum speed output of a wired network. This will depend on cabling and hardware so I would like to build a small battery powered device to test without the need for a PC or laptop.

Does anybody know if it is possible to power a 10/100/1000 network card standalone, without a PC. When plugged into the network, have the status lights on the plug flash to identify an active wired network and it's speed?

Create new topic
24994 posts

Uber Geek
+1 received by user: 4880

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 1376256 30-Aug-2015 08:19
Send private message

Yes it's probably possible, but I'm not quite sure what it is you're trying to achieve.

If you want to test Ethernet you simply need the proper hardware - something like a Fluke Cable IQ tester that will work at layer 1 and test a connection at 10, 100 and 1000 Mbps to check that it meets performance spec, and at Layer 3 to perform basic connectivity testing.



dwl

362 posts

Ultimate Geek
+1 received by user: 42


  Reply # 1376339 30-Aug-2015 10:27
Send private message

There are two separate speed issues - the maximum speed of the interface (e.g. 100 or 1000) and the rate at which frames can be processed by the device or service.  The other important bit is your budget.  Based on your question I will assume all you want to know is what speed the interface can achieve.

For a quick DIY you might be able to use a Rasperberry Pi and put some LEDs on the GPIO pins with a bit of code but I think the in-built port is limited to 100.  Some people use a USB-Ethernet adapter to get a 1000 interface and you might be able to get it working to show how it is connecting but getting a bit too complicated.

A dedicated tester is the best answer but unless you can pick up one of the older style at big discount the price may be a killer.  There are some new models that might suit like the Fluke Linksprinter (Fluke website here) although I have never looked at this model and rather unclear how much you can see on the instrument and what you need to access from the cloud  or via WiFi in the case of the 200.  The article said "The LinkSprinter 100 is priced at $199 and the LinkSprinter 200 at $299. Tests results that are saved to the LinkSprinter service are priced at $9.95 for 100 tests or $79.95 for 1,000 tests (currently, through May 31, 2014, you get unlimited tests for the first 120 days of ownership)."

If there is anyone on this forum who has used these I would be interested in feedback.  The LinkSprinter 100 or 200 might be ok but the concept of having to connect back to cloud server for this type of test seems painful if wanting to check local link.  Maybe the LED indication is enough for you.

 
 
 
 


1561 posts

Uber Geek
+1 received by user: 464

Subscriber

  Reply # 1376423 30-Aug-2015 14:59
Send private message

Do you just want a device that you plug a network cable into. That will tell you that the other end is plugged into something, and what the link rate is? If so then just get a cheap 5 port gigabit switch, and look at it's front panel LEDs. Alot of them run on 12V so it would be easy to run one on batteries.

Or do you need to send data down to cable to verify connectivity / speed between 2 endpoints?





dwl

362 posts

Ultimate Geek
+1 received by user: 42


  Reply # 1376455 30-Aug-2015 15:41
Send private message

Aredwood: Do you just want a device that you plug a network cable into. That will tell you that the other end is plugged into something, and what the link rate is? If so then just get a cheap 5 port gigabit switch, and look at it's front panel LEDs. Alot of them run on 12V so it would be easy to run one on batteries.

Or do you need to send data down to cable to verify connectivity / speed between 2 endpoints?

Good idea, even a cheap router or modem lying around might work. Some may show whether 1000 or 100 by the colour of the LED. If you want more detail like whether doing auto or fixed then gets harder.

1923 posts

Uber Geek
+1 received by user: 139


  Reply # 1376494 30-Aug-2015 17:31
Send private message

livefornow851: Snip......
Does anybody know if it is possible to power a 10/100/1000 network card standalone, without a PC. When plugged into the network, have the status lights on the plug flash to identify an active wired network and it's speed?

I can't answer this question, but I can use my tablet with a micro USB to ethernet adaptor to tell me if a network cable is active. A Speedtest.net check gives an indication I can see the outside world.

With the right version of android the adaptor would probably work on some phones. There are likely some network tool apps out there too, but I haven't looked in while.

In-situ cable testing I've done with other dedicated line testing tools


Edit:Typos

1889 posts

Uber Geek
+1 received by user: 119

Trusted

  Reply # 1376502 30-Aug-2015 17:56
Send private message

Being able to sync an Ethernet link at a particular speed does not mean that link is capable of maximum throughput without errors or packet loss. There are testers like the LANscaper that can test throughput and give a "bit error rate" reading along with other cable testing, generally over $2000, as well as more limited tools that only test throughput. I imagine your Raspberry Pi will need some work on the kernel to measure the bit error rate...

Generally contractors testing ethernet links are only looking for the physical specs of the cable itself such as crosstalk and resistance, so the Fluke is usually used.




Qualified in business, certified in fibre, stuck in copper, have to keep going  ^_^

2203 posts

Uber Geek
+1 received by user: 613

Trusted

  Reply # 1376587 30-Aug-2015 20:08
Send private message

I would say a raspberry pi with a lcd screen will let you run iperf and similar tools to test end to end connectivity.
Otherwise a fluke tool to test the physical specs as everyone else has said.





Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Behind Spark’s slow-burn 4.5G plan
Posted 26-Jun-2017 16:23


Red Hat unveils production-ready open source hyperconverged infrastructure
Posted 23-Jun-2017 22:10


Whatever ailed Vodafone broadband … seems to be fixed
Posted 23-Jun-2017 14:10


VMware NSX Meets Stringent Government Security Standards with Common Criteria Certification
Posted 22-Jun-2017 19:05


Brother launches next-generation colour laser printers and all-in- ones for business
Posted 22-Jun-2017 18:56


Intel and IOC announce partnership
Posted 22-Jun-2017 18:50


Samsung Galaxy Tab S3: Best Android tablet
Posted 21-Jun-2017 12:05


Wellington-based company helping secure Microsoft browsers
Posted 20-Jun-2017 20:51


Endace delivers high performance with new 1/10/40 Gbps packet capture card
Posted 20-Jun-2017 20:50


You can now integrate SMX security into Microsoft Office 365, Google and other cloud email platforms
Posted 20-Jun-2017 20:47


Ravensdown launches new decision-making tool HawkEye
Posted 19-Jun-2017 15:38


Spark planning to take on direct management of all consumer stores
Posted 19-Jun-2017 10:03


Qrious acquires Ubiquity
Posted 14-Jun-2017 12:21


Spark New Zealand prepares for 5G with Nokia
Posted 14-Jun-2017 12:16


The future-proof 10.5-inch iPad Pro
Posted 13-Jun-2017 18:16



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.