Quickly understand the differences between the current technic and OpenFlow

OpenFlow can significantly reform the existing network limitations, that is due to both improve and standardize existing technology breakthroughs in various fields. The following table will simply present the differences between the current technic and OpenFlow for quick understanding of the differences between OpenFlow and existing technologies.

  Current technology OpenFlow
Internet protocol box centric, with a single hardware-centric. fabric centric, use WAN as the overall box centric, with a single concept of the fiber optimization, rather hardware-centric. than as a collection of hardware.
Network Management Optimized single hardware performance, and each has its own hardware system monitoring / management / operations function does not fit and coordinated. The system monitoring / management / operations, cut out from the respective hardware and centralized control the network transmission, use overall network transmission to optimizeD according to the necessary (protocol requirements) to choose the hardware and software in use.
Test Environment Can't divide the original network systems if wish to putting up for network experiments or tests, subject to connect another network in order to avoid paralysis. Software can be divided into network (software-defined networking) and experiment, even if the experiment breakdown is still not affect the original line.
Cost control (cost per bit) does not necessarily increase with reduced transmission unit. Due to the complexity of peer pairing also increased with the all-platform communication and therefore need more powerful and expensive equipment to meet the needs of network communications. Single project often requires manually adjust and manage, or even increased the face of non-standardized APIs (automated configuration) complexity. Since the planning and control of network traffic pulled to openflow controller performed better by a variety of network characteristics to optimize transmission. And do not need to upgrade the software on the hardware, and more savings in manpower costs. Effectively reduce enterprises unit delivery costs.

In short, OpenFlow and SDN (software-defined networking) has the following advantages

  • Simplify network device management and configuration
  • Raise bandwidth utilization
  • Quick Troubleshooting
  • Accelerate network application services development and hit the market.
  • Non-contact system updates
  • Testing, verification, fault simulation to fit more realistic operation.
  • Closely integrated with the top network operators, network performance and system configuration more flexible.
  • Products more price-effective without the shackles of traditional network equipment manufacturers