Follow Us

We use cookies to provide you with a better experience. If you continue to use this site, we'll assume you're happy with this. Alternatively, click here to find out how to manage these cookies

hide cookie message

How much bandwidth is a Gigabit?

It's a lot more than your users can use...

Article comments

Do you understand how much bandwidth 1Gbit/s is? That's the question I often find myself asking users.

At our largest sites we have deployed Gigabit to the desktop - not because users need it, but because the price difference between 10/100/1000 and 10/100 cards in Cisco 6500s is small. Plus, there are better features in the 10/100/1000 blades than in the older 10/100 cards. So, might as well get the Gig blades.

Now, that doesn't mean users always get Gigabit. Some older PCs only support 100Mbit/s. However, most of our PCs and laptops have Gigabit NICs and users have become accustomed to seeing "Connected 1.0Gbit/s" when their PC boots up. And once users have Gigabit, they just assume they need it.

Last year we refreshed the network switches at our small sales offices. To save money we purchased Cisco 3750 10/100 switches. In the 3750 line there is a significant price difference between 10/100/1000 and just 10/100. Most of these field sites have sales people and connect to the datacentre over two 3Mbit/s WAN circuits. 3Mbit/s!

But the outcry when these users lost their Gig ports was intense. "How can I work with only 100Mbit/s?" "There's no way I can get my testing done without Gig." It was unreal.

Then it happened again over the last few weeks. As I mentioned above, our largest sites have been outfitted with 10/100/1000 for a while and users have come to expect their PC connected at 1Gbit/s. Then, over the last few weeks, we started deploying Cisco IP phones with only 10/100 ports. User PCs connect to the phone which connects to the network. Here comes the outrage again: "My team cannot support this change. Deploy new ports to our cubes so we can have Gig again." "This is going to impact our ability to support customers, my testing will slow down." "IT just doesn't understand our needs."

After several minutes of trying to explain to no avail to users they don't need 1Gbit/s since their network traffic patterns are not intense or sustained enough; or trying to explain there are no PCs that could even push 1Gbit/s; or explaining the study we did a few months ago that showed the highest user port averaging around 40Mbit/s I found myself asking them "Do you understand how much bandwidth 1Gbit/s is? You don't need it. 100Mbit/s is fine! In fact, 10Mbit/s would probably be OK."

Yes, there are definitely servers, databases, and network storage in a datacentre that can fill and benefit from 1Gbit/s ports, but not users. Any traffic over WAN links is going to be limited by lower WAN bandwidth and effect delay has on TCP. So, unless you're sitting on the same LAN as the datacentre with a home-built, water-cooled super-PC running your own compiled version of Linux......you don't need a Gig port!


Share:

More from Techworld

More relevant IT news

Comments

Penguin said: Did Oscar agree to you giving him away

Wanderfull said: I would give oscar to mental-retarden writer who t the end did not answer question at the beginningOr is this site for stupid text



Send to a friend

Email this article to a friend or colleague:

PLEASE NOTE: Your name is used only to let the recipient know who sent the story, and in case of transmission error. Both your name and the recipient's name and address will not be used for any other purpose.

Techworld White Papers

Choose – and Choose Wisely – the Right MSP for Your SMB

End users need a technology partner that provides transparency, enables productivity, delivers...

Download Whitepaper

10 Effective Habits of Indispensable IT Departments

It’s no secret that responsibilities are growing while budgets continue to shrink. Download this...

Download Whitepaper

Gartner Magic Quadrant for Enterprise Information Archiving

Enterprise information archiving is contributing to organisational needs for e-discovery and...

Download Whitepaper

Advancing the state of virtualised backups

Dell Software’s vRanger is a veteran of the virtualisation specific backup market. It was the...

Download Whitepaper

Techworld UK - Technology - Business

Innovation, productivity, agility and profit

Watch this on demand webinar which explores IT innovation, managed print services and business agility.

Techworld Mobile Site

Access Techworld's content on the move

Get the latest news, product reviews and downloads on your mobile device with Techworld's mobile site.

Find out more...

From Wow to How : Making mobile and cloud work for you

On demand Biztech Briefing - Learn how to effectively deliver mobile work styles and cloud services together.

Watch now...

Site Map

* *