Cloud Computing Concepts:
stand for Network as a Service, it
is one of the service models offered by cloud computing.
Network as a service (NaaS) is a business model
for delivering network service over internet the internet on a pay per use or subscription basis.
Networks as a Service allows us to access to
network infrastructure directly and securely. NaaS makes it possible to deploy
custom routing protocols.
NaaS uses virtualized
network infrastructure to provide network services to the consumer. It is
the responsibility of NaaS provider to maintain and manage the network
resources which decreases the workload from the consumer. Moreover, NaaS offers
network as a utility
From the customer's point of view, the only
thing required to create an information technology (IT) network is one
computer, an Internet connection and access to the provider's NaaS portal.
This concept can be appealing to new business
owners because it saves them from spending money on network hardware and the
staff it takes to manage a network in-house. In essence, the network becomes a
utility, paid for just like electricity or water or heat. Because the network
is virtual, all its complexities are hidden from view.
NaaS isn't a new concept, but its deployment has
been hindered by some of the same concerns that have affected other cloud
computing services -- especially questions about the provider's ability to
guarantee high availability (HA).
Other concerns include dealing with service
level agreements (SLAs), compliance issues related to data sovereignty and the
possibility of vendor lock-in.
To use NaaS model, the consumer is required to
logon to the web portal, where he can get online API. Here, the consumer can
customize the route.
Features and Benefits of Naas:
There exists more open support models, which help to reduce the operation cost.
exists data protection solution for highly sensitive applications.
Isolation of customer
traffic: The customer traffic is logically isolated.
Each consumer is independent and can segregate the network.
Customers have to pay for high-capacity network only when needed.
exists reliability treatments that can be applied for critical applications.