Spirent Communications 
and the European Advanced Networking Test Center (EANTC) demonstrated a dynamic cloud computing test environment that benchmarks the performance, availability, security and scalability (PASS) of private, public and hybrid clouds.
Some of the key findings of this test include:
- Cloud computing service providers are not equal. At different workloads, service providers show different performance levels.
- Traditional network SLAs have to be re-examined as companies transition to a hybrid cloud computing model
- Distributed virtual switches are proving to be reliable during service disruptions and upgrades, taking only a few seconds to transfer services across physical resources
- Convergence of SAN and LAN with Fiber Channel over Ethernet (FCoE) delivered the required performance for storage
- Virtualization and high-speed Ethernet enable high availability with fast convergence times during live migration but the impact on application performance is a concern.
"To reap the full benefit of cloud computing, it is critical to understand the requirements of the cloud computing framework across key network attributes such as performance, security, availability and scalability," said Carsten Rossenhoevel, managing director, EANTC. "Spirent has partnered with us to stage an innovative test evaluating private and public cloud performance in the real world. We are excited to publish the results of this industry-first test of public cloud providers."http://www.spirent.com/cloudtestinghttp://www.eantc.com
