Category Archives: Network Emulation

Network Emulation is the simulation of a network (WAN, GPRS, 3G, ADSL, DSL, Satellite, Radio etc) in such a way that you can plug in real devices (clients, servers, switches, routers) into the emulated network to test how an application will perform over the emulated network.

It’s Worse than that Jim – Bandwidth is not equal to Link Speed either.

In a recent blog my colleague, Phil Bull notes that there’s confusion over bandwidth and speed.  This discussion started with an article on Network World’s website where Netforecast said “No Matter What the FCC Says, Bandwidth Is Not Speed”.  Basically … Continue reading

Posted in Application Performance, Application Response Time, Bandwidth, Network Delay, Network Emulation, WAN Emulation | Tagged , , , , , , , , , , , , , , , , | Leave a comment

Confusion over Bandwidth and Speed!

It appears that even the experts can get confused over the distinction between bandwidth and speed so what chance does the ordinary “Joe” have? I recently came across an article on the Network World web site “No Matter What the … Continue reading

Posted in Application Response Time, Are You Confident It'll Work in the Network, Bandwidth, Network Emulation | Tagged , , , , , , , , , , | Leave a comment

Network Simulation vs Network Emulation

As a developer of Network Emulators, we’ve noticed over the years that there seems to be real confusion out there about the difference between network simulators and network emulators.  Part of the issue is that the dictionary defines these words … Continue reading

Posted in Network Emulation, Network Simulation | Tagged , , , , | Leave a comment

Developing software that utilizes the network

The correct way to develop software that utilizes a network still seems to be a little understood subject. The main issue seems to be that there are few people around who have the experience necessary to understand both the correct … Continue reading

Posted in Application Design, Application Development, Application Performance, Application Response Time, Application Testing, Network Delay, Network Emulation, Network Simulation, WAN Emulation, WAN Simulation | Tagged , , , , , | Leave a comment

Selection as Award Finalists lifts the winter gloom!

Let’s face it, once Christmas is over and done with, the prospect of a long, cold (and this year very snowy) winter looms ahead which can leave us all a bit flat. So, it was great to receive notification that … Continue reading

Posted in Awards, Network Emulation, Network Simulation, WAN Emulation, WAN Simulation | Tagged , , , , | Leave a comment

So how fast is Mobile Broadband (3G) really

Recently, I got myself a 3G “dongle” so I could connect my laptop and be on the Internet anywhere at a “reasonable” speed.  If you haven’t re-visited these gadgets recently you might not have noticed that they’re up from the … Continue reading

Posted in 3G Download speed, 3G Testing, Application Testing, Mobile Broadband, Network Emulation, Network Simulation, WAN Emulation, WAN Simulation | 3 Comments

Are You Testing in Realistic Network Environments?

Happy New Year! Just before Christmas we exhibited at the TestExpo show, which specialises in tools for testing software. Chatting with the testers and developers during the show I’m still amazed that when testing, and during the development process itself, … Continue reading

Posted in Application Testing, Network Emulation, Network Simulation, WAN Emulation | Tagged | 2 Comments