Page 201 - Big data - Concept and application for telecommunications

Big data - Concept and application for telecommunications 5

2) Capability of end-to-end network intelligence provision

Based on the management and analyzation of assorted network data, end-to-end network
intelligence can be provided to network management, QoS, security, maintenance and operation;
this makes all these aspects more smart and proactive through big data technologies. Data
intelligent services can be provided both on the management plane and network plane.

10.2 High-level capabilities of network plane

10.2.1 Application layer capabilities
The bDDN network application layer is where applications specify network services in a programmatic
manner. The network application layer interacts with the network control layer via application-control
interfaces. The network application layer needs to interact with the big data plane.

In the network application layer, it is required that the network can be programmed by the application
flexibly. Dynamic programmability is one of the key technologies to enable the application to program the
network flexibly.

10.2.2 Network controller layer capabilities
The bDDN network controller layer provides a means to control the behaviour of the network resources layer.
Instructed by the bDDN network application layer, the bDDN controller layer interacts and instructs the bDDN
resource layer to transport and process network traffic. The network controller layer needs to interact with
the big data plane.

The controller in bDDN needs to communicate with the big data plane, the calculation of policy, forwarding
rule and so on is computed by the big data plane, and then dispatched to the infrastructure layer by the
controller. This work in the SDN is completed by the controller with a simple calculation.
On the other hand, the policy computation in bDDN is based on the large collected data sets, including some
external data; this is not in the SDN. In addition, bDDN also uses machine learning to optimize the
computation model. Therefore, policies and rules through bDDN computation are more optimized than those
provided by the SDN controller. The bDDN can make better use of network resources, and provide a better
network service for users.

10.2.3 Network infrastructure layer capabilities
The bDDN network resource layer is where the network elements perform the transport and the processing
of data packets according to the decisions made by the SDN control layer. The network infrastructure layer
needs to interact with the big data plane.

10.3 High-level capabilities of management plane

10.3.1 Capabilities of network operation layer
Based on the big data from the network, operators can deeply analyse the real-time status of the network,
accurately predict the future status of the network, and effectively configure the network to support better
services.
10.3.2 Capabilities of network administration aspect

By analysing the network big data in real time, bDDN can get instant knowledge of network status, existing
problems and undergoing risks. Through coordinating with the controllers of the network plane and
management plane, bDDN can fulfil autonomous network control and management. Accordingly, operational
expenditure and capital expenditure would be both cut down.
10.3.3 Capabilities of network maintenance aspect

Rather than frequent intervention whenever a problem occurs, to circumvent observable latency,
optimization must be done beforehand. The pattern would transform from "observe, catch, diagnose,
bailout" to "overall circumstance awareness, trend prediction, pre-emptive resolution". The more data

Network and infrastructure 193