SDN and PBM: A Comparative Analysis for Network Management

DISTRIBUTED SYSTEMS ASSIGNMENT 1
Distributed Systems Assignment
Student’s Name
Institutional Affiliation
Date

DISTRIBUTED SYSTEMS ASSIGNMENT 2
a) Research and describe to the management what is involved in SDN (Software
Defined Networks) approach to network management. In your explanation provide
a description of the benefits of the process, benefits to the organization and any
possible impact on the IT staff.
The SDN is defined as an entrance to building data networking equipment along with
software which partitions and abstracts elements of these systems. It usually permits the
administrators of the system to network services more efficiently via the abstraction of lower
level functionality into the virtual services (Sezer, ital.2013). On the other hand, it is a strategy
which is utilized for the Pc organization which allows the administrators to oversee the benefits
through speculation of more considerable amount write capabilities (Changkun, 2014).
Software-defined networking originates shortly after the sun microsystems released java.
Conversely, there is a lot of need to have software-defined networking because most of the
network devices usually possess control along with data flow functionalities which operate on
similar devices (Sezer, ital. 2013). Accordingly, the network has only one command that is
accessible which is from the network management plane. It is usually used to configure each
network node separately. However, the SDN comes in where by the static nature of the current
network devices does not allow a detailed control plane configuration (Changkun, 2014). When
the packet reaches the switch in a conventional network, the rules within the switch directs the
packets where to be forwarded. The switch usually sends every packet going the same way, and
all packages are treated the same way.
Software Defined Networking (SDN) is making it easier for organizations to advance in
application deployment together with delivery which dramatically is minimizing IT costs

DISTRIBUTED SYSTEMS ASSIGNMENT 3
through such way as policy-enabled workflow computerization. The SDN technology allows
cloud architectures by conveying computerized, on-demand application transfer along with
movement at scale. SDN enables the advantage of data center virtualization, maximizing
resource flexibility together with the uses at the same time reducing the costs of infrastructure
along with overhead.
The software-defined networking usually achieves these goals by bringing together the
management of network along with the services of the application into consolidated, expandable
orchestration platforms which can barbarize the provisioning along with configuration of the
whole infrastructure. However, the known centralized IT policies usually unite disparate IT
groups together with workflows. The result is up to date infrastructure which can convey newly
created apps and services within a very short while instead of days or weeks which was required
in the past.
b) Research and describe to the management what is involved in PBM (Policy-Based
Network Management) approach to network management. In your explanation
provide a description of the benefits of the process, benefits to the organization and
any possible impact on the IT staff.
The PBM is termed as the management of network whereby different kind of traffic, data,
voice and video access the priority of availability and bandwidth which is required to serve the
network users effectively. Accordingly, it is a management paradigm which partitions the rules
that govern the behavior of a system from its functionality (Sezer, ital. 2013). The PBM usually
reduces the information costs maintenance along with communication system while bettering
flexibility and runtime adaptability.