Presented byArup Bhattacharjee

Issues & Challenges in Campus Wide Networking

• Campus Wide Network (CWN) interconnects networks in a limited geographical area such as university campus.

• Emerging global economy require faster communication services and improved productivity and effectiveness.

• Universities need to support demands and diverse issues.• University network is required for its staff, faculty, students and

researchers to discover, learn, reach-out and serve the society.

Introduction

Arup Bhattacharjee, NIT Silchar

• Information Technology has been driving force in the development of universities for some time now.

• A robust technical infrastructure and sound network architecture is needed.• Network Architecture is the guide for the technical design of the network

using high-level design principles.• Good network architecture meet and adapt to the specific need of the

university and also provide flexibility, scalability and manageability.• CWN should support Next Generation Network (NGN) with integrated

services as well as Internet-of-Things (IoT) layout.

Significance

Arup Bhattacharjee, NIT Silchar

• CEO▫ Marketable infrastructure▫ Increase productivity – publication, student intake▫ Fund

• Network Administrator▫ Faster provisioning▫ Ease of maintenance▫ Availability

• End User▫ Speed▫ Reachability

Perspective

Arup Bhattacharjee, NIT Silchar

• Improve student outcome using technology• Funding strategy for IT growth• Organizational model for openness and agility• Sustainable strategy for online learning• Leveraging device explosion• Use of cloud based solution• Balancing between openness and security

Issues

Arup Bhattacharjee, NIT Silchar

• Mandatory requirement for accreditation for funding.• Act as a performance measure of system, institution and department.• Leverage technology for design, creation and delivery of learning experience to the

students.• Use technology for face-to-face, blended as well as totally online learning.• Use of services such as Google+, iTunes, Youtube etc. but challenge is lack of policy

for IPR, privacy issues, quality etc.• Use of open educational resources such as MIT OpenCourseWare, Khan Academy,

MOOCs etc. challenge is to identify and select quality resource, creating new material etc. by the faculty.

• Using social networks such as Facebook, Twitter etc. for connecting students at the course, program and the insttute.

Student Outcome

Arup Bhattacharjee, NIT Silchar

• IT is a service to the university much like Academic, Student Administration, Finance and Accounts etc. – not to be treated in isolation.

• An operating model is needed based on existing business process in order to position IT.

• One may view IT both as cost center as well as revenue generator.• Investments need to be made based on expected organizational

transformation and strategic growth.• Develop a cost metric to assess cost of each IT Service.• Need a strategy for identifying areas of technology adoption and innovation.• Draw policies for leveraging local resources for enabling collaboration.

Funding

Arup Bhattacharjee, NIT Silchar

• Cloud Computing, BYOD, e-Governance, Analytics are new demands.• Demands arise from ERP or LMS system of the institution and the level of

support needed.• Traditional computer labs, classrooms must be supported while exploring and

integrating newer technologies.• As institutions move to outsource more solutions, staff need to assume new

roles and form new units for service management and strategy.• Will the institute be able to adapt to dynamic environment?• Fund crunch often require smaller units to be consolidated towards

centralization with more specialist and fewer generalist roles.

Organizational Model

Arup Bhattacharjee, NIT Silchar

• Massive Open Online Course (MOOC) is here for supporting design and delivery of quality leaning experiences.

• Institutions need to understand about goal, audience and quality of experience in their MOOC endeavor.

• Institutions need to balance between broad availability of online courses vis-à-vis restrictive approach.

• Right scope and positioning of the online courses is very important.• Faculty need to adjust to the new way of instruction; a deviation from purely

lecture based model of course delivery.• A well developed assessment strategy is needed against online courses as

traditional pedagogical theory do not hold any longer.

Online Learning

Arup Bhattacharjee, NIT Silchar

• Bring-Your-Own-Device (BYOD) trend is rising and is supported.• Challenge of network coverage has been surpassed by the bandwidth requirements

due to density of devices.• Upgrading of devices more frequently is the newer challenge.• Providing contents ranging from class schedule to campus news to faculty, staff and

students anywhere, anytime and on any device is the biggest challenge.• Wireless technology is adopted for ease of deployment.• But, what will be the security implication, is sufficient Internet bandwidth available,

is instructional model is being affected, should mobility be supported?• Should the institute support mobility and if so, does it need custom application?

Device Explosion

Arup Bhattacharjee, NIT Silchar

• One of the fastest changing aspect of the industry.• Software-as-a-Service (SaaS) model is now being adopted.• Proper cloud computing framework can make institute more agile in

delivering newer service faster yet keeping upfront cost low.• Initiatives such as Internet2 provides an opportunity for institutions to

collaborate for developing fair legal and business contracts, share experience.• Platform-as-a-Service (PaaS) model is easier to deploy while Infrastructure-as-

a-Service (IaaS) model may require more planning and integration.• Stable policy is needed to ensure data security, data location, who has access

and to what, recovery point objectives and recovery time objective in the event of disaster.

Cloud Strategy

Arup Bhattacharjee, NIT Silchar

• Safeguarding data and protecting privacy of higher education community.• Equity, diversity and sharing define higher education.• Community such as REN-ISAC provide security watches and remediation

information.• Institutions should have formal risk management process.• A formal process for data classification is needed for sensitive data.• A review mechanism for security practices/policies/processes need to be in

place for guaranteeing reasonableness.• Identify, review and remediate if security practice is inhabiting collaboration.

Balance of openness and security

Arup Bhattacharjee, NIT Silchar

• These diverse issues are not independent.• Emphasizes interaction among institutional policies, transformation towards

IT and external forces.• Clearly external forces influence institutional priorities but are reshaping

higher education IT.• A more direct connection between external forces and university IT is the

matter of openness versus security, adoption of cloud technology.• A key requirement is therefore is the ability to aggregate, de-aggregate and

re-aggregate resources, services and applications of every component of research and education.

• A well developed network architecture is expected to meet this requirement.

Lesson

Arup Bhattacharjee, NIT Silchar

Parameters of CWN:-• Large network over broad geographies.• Constantly changing large user base.• Wide variety of network devices in terms of OS, make, type etc.• High volume of large file sharing and downloading.• Open network.• Track user for copyright infringement, cheating etc.• Breach of network security.• Varieties of applications and databases accessed.

Network Administrator’s Corner

Arup Bhattacharjee, NIT Silchar

• Decide about architecture to be deployed.• Work-out implementation strategy.• A well planned commissioning timeline.• Human resource requirement and its sustenance.• Plan for maintenance schedule.• Roadmap according to expansion plan.• Disaster recovery plan.• Response mechanism towards IPR violation, virus outbreak, network

slowdown etc.

Challenges

Arup Bhattacharjee, NIT Silchar

• Hierarchical or flat network?• Routing or switching or hybrid?• Single OEM or multi-vendor?• Wired or Wireless or both?• Data network or convergent network?• Open access or restricted access?• Logging or no-logging?

Architecture

Arup Bhattacharjee, NIT Silchar

Sample

Arup Bhattacharjee, NIT Silchar

Arup Bhattacharjee, NIT Silchar

Arup Bhattacharjee, NIT Silchar

Arup Bhattacharjee, NIT Silchar

Thank You

Arup Bhattacharjee, NIT Silchar