創易分享

With virtualized layer 4 – 7 network functions (VNFs),

services can be instantiated on commercial-off-the-shelf (COTS) hardware to provide benefits, including:

• Repurposing the same hardware for different VNFs based on current demand. For instance, when volumetric DDoS attacks slow down, the underlying hardware can now run additional WAN optimization virtual machines. ( 資安是考量)
• Instead of spending up to 60 days to order a purpose-built appliance, configure and install it, operators can simply instantiate a new virtual appliance at a moment's notice to deal with elastic demand.

Several use cases can be addressed with NFV, ranging from data center interconnects to mobility to security. This wide range of applications also requires careful scrutiny for optimization to avoid the pitfalls encountered in the traditional data center space. Managing the end-to-end lifecycle of VNFs along with on-the-fly license generation can consume a lot of time resources if not implemented properly.  ( 對學校給學生的校園網路太慢或許可以考慮 )