CIS3003: A Comparative Analysis of SDN and PBM for Private Clouds

This report provides a comparative analysis of Software Defined Networking (SDN) and Policy-Based Network Management (PBM) for a private cloud infrastructure, as requested by the management following an initial assessment that ruled out public cloud solutions due to security concerns. It outlines the benefits of SDN, including centralized network provisioning, holistic enterprise management, granular security, lower operating costs, hardware savings, cloud abstraction, and guaranteed content delivery. Similarly, it details the advantages of PBM, such as improved user services, simplified device management, and enhanced security. The analysis covers the capabilities and infrastructure requirements of both SDN and PBM, ultimately recommending SDN for its agility, flexibility, and enhanced network control. The report concludes that SDN is better suited for the organization's needs due to its superior data security and accessibility, making it the preferred solution for managing the network effectively. Desklib provides access to similar solved assignments and resources for students.

NETWORKS AND
DISTRIBUTED SYSTEMS

INTRODUCTION
+ The management has decided to make use of
private cloud for solution
+ The choice of public cloud is not taken into
consideration as it will risk the confidential
information of the organization.
+ The presentation recommends whether the
software defined networks (SDN) or the policy
based network management (PBM) will be
appropriate for consideration.

SOFTWARE DEFINED NETWORK -
BENIFITS
+ The benefits of making use of a software defined network are
as follows-
+ Centralized network provisioning- The use of software defined
network provides a centralized view of the entire network of
the organization thus making is even easier to centralize the
process of enterprise management and provisioning
+ Holistic enterprise management- The use of software defined
networking further provides the benefit of holistic enterprise
management
+ More granular security- The use of software defined network
provides more granular security which is a significant advantage
of making use of SDN

CONT…
+ The benefits of making use of software
defined network in the organization is listed
below-
+ Lower operating costs.
+ Hardware savings and reduced capital
expenditures
+ Cloud abstraction
+ Guaranteed content delivery

POLICY BASED NETWORK
MANAGEMENT –BENEFITS
+ There are a number of benefits of making us
of the policy based network management,
which are listed below-
+ Provides better services to users
+ Simplifies the device, network and the service
management
+ Helps in managing the increasing complexity

CONT..
+ The organizational benefits of making use Policy-Based
Network Management in the said organization are as
follows-
+ 1. The use of Policy-Based Network Management helps
in proper management of network applications.
+ 2. The use of Policy-Based Network Management helps
in managing the security issues associated with the
organization.
+ 3. With the use of Policy-Based Network Management
provides a means by which the process of administration
can be simplified and largely automated

ANALYSIS OF SDN
+ The capabilities of SDN are as follows-
+ 1. The use of Software defined networking can make the network
agile and flexible, quite similar to the virtualized servers.
+ 2. It provides the network operators, more control over the data of
the network that increases the flexibility in adopting the system.
+ 3. Instead of a firewall, SDN generally deploys an application that
makes use of controller in managing the data plane behavior of
the system.
+ 4. The operation mode of SDN is adaptive or dynamic in nature
and therefore enhances the process of network management.

CONT..
+ The infrastructure requirements of the software
defined networks are as follows -
+ 1. Physical Network- This is needed in order to
configure the VLANs, Routing, BGP and Data center
bridging
+ 2. Physical compute hosts- This is needed as these
hosts run Hyper V and are generally required to host
SDN infrastructure and tenant virtual machines.

ANALYSIS OF PBM
+ The capabilities of PBM are listed below-
+ 1. It enables translation of the business rules and
procedures of the organization in to policies
+ 2. These policies can be configured according to the
requirements of the business in order to provide full
control to the network and the services.
+ 3. It is capable of uniting the business, system and
the implementation spheres of the organization.

RECOMMENDED APPROACH
+ Software Defined Network is recommended for the
organization.
+ Software Defined network is recommended for the
organization as the use of SDN helps in proper
management of the network of the organization.
+ The use of SDN increases the flexibility and agility
in the process of network management thus
providing the organization with a better control of
the data stored and thus the use of SDN is justified

CONCLUSION
+ The presentation provides an overview of
software defined networking and policy based
network management.
+ It is found out that the use of SDN will be
suitable for the organization because it provides
a number of advantages, which includes secure
data storage and easy accessibility of the data.
+ Thus the use of software defined networking is
recommended for the organization.