An Internship Presentation ! North South University (NSU)

1. S U P E RV I S E D B Y
D R . H A F I Z A B D U R R A H M A N
A S S I S TA N T P R O F E S S O R
E E C S D E PA RT M E N T
N O RT H S O U T H U N I V E R S I T Y
D H A K A , B A N G L A D E S H
Prepared by
Syed Rqm Shahriar
ID# 072 125 045
North South University
An Internship Presentation

2. Internship Topic:
 Network Infrastructure Management andApplication of Server Load
BalancingSystem for BankAsia.

3. Objective of the study:
 To understand the existing network infrastructure of
Bank Asia Limited.
 To find out the problems of existing network
infrastructure.
 To find out a possible solution.
 To propose a new network design.

4. Company Profile:
 Bank Asia Limited is a scheduled Bank under private sector
established within the ambit of Bank Company Act, 1991 and
was incorporated as a Public Limited Company under Companies
Act, 1994 on September 28, 1999.
 The Bank started commercial banking operations from
November27, 1999
 Bank Asia Ltd. has a total of 64 (up to August 2012 ) branches.
 All the branches provide online banking services

5. ICT Division:
 Information Communication and Technology division of Bank
Asia was established in the year 2003.
 The core banking solution software Stelar was established in the
year 2004 which enabled the bank to start its real time online
banking service.
 ICT division of the bank supervises the software operation
management & network infrastructure management of the Bank.

6. ICT Strategy Framework

7. Network Infrastructure Management
Units of Network Infrastructure management is given below:
 Network and System management
 Network Security Management
 Disaster Recovery Management
 Application Installation & Management
 Datacenter Management
 Readiness of New Branch
 Branch Support

8. Existing Network Infrastructure

9. Branch LAN Design

10. Problems:
 Low-performance servers receive many requests, while high-
performance servers are underutilized.
 There’s a content problem. Servers and applications are working
properly , but are responding to requests with “404 Object Not
Found.”
 There’s a server failure. A server becomes unavailable due to a
hardware failure or an operating system failure.
 There’s a software failure. Individual applications stop
responding, even though other applications are healthy.

11. Server Load Balancing and its Benefits:
 Server load balancing is the process of distributing
service requests across a group of servers.
 Server load balancing addresses several
requirements that are becoming increasingly
important in networks:
• Increased scalability
• High performance
• High availability and disaster recovery

12. Extreme Network Server Load Balancing Device
Summit7i

13. Load Balancing Algorithms
A key feature of server load balancing is its ability to
intelligently direct service requests to the most
appropriate server:
 Round robin – A simple algorithm that distributes each new
connection/session to the next available server
 Weighted round robin with response-time as weight – An
enhancement of the round robin method where response times for
each server within the virtual service are constantly measured to
determine which server will take the next connection/session

14. Continued
 Fewest connections with limits – determines
which server gets the next connection by
keeping a record of how many connections
each server is currently providing. The server
with fewer connections gets the next request.

15. Proposed System Design

16. Continued

17. Disaster Recovery
 This load-balancing products can also provide
disaster recovery services by redirecting service
requests to a backup location when a catastrophic
failure disables the primary site.

18. How server load balancing system Solves Real-World Server
Availability Problems
 Problem: There’s a content problem. Servers and applications are
working properly , but are responding to requests with “404 Object
Not Found.”
 Solution: Using content verification capabilities, Users never receive a
“404 Object Not Found” message.
 Problem: Low-performance servers receive many requests, while high-
performance servers are underutilized.
 Solution: This solution uses advanced server load-balancing techniques at
wire-speed to properly direct traffic to the server that is best able to handle it.

19. Cont’d
 Problem: There’s a server failure. A server becomes unavailable
due to a hardware failure or an operating system failure.
 Solution: Traffic is automatically routed around any server that
fails or becomes unavailable, while keeping failures transparent
to users. Once a server responds properly , it’s automatically
added back to the server farm to ease administration.

20. VPN Tunnel Monitoring
Bank Asia Uses Whatsup Gold for the VPN tunnel
Monitoring.
 High performance predictive and pre-emptive monitoring of
networks and systems infrastructure and core IP services 24/7
 Highly flexible, automated, and comprehensive network
discovery and mapping
 A powerful alert management platform, featuring easy to use
alarms, alerts and notification capabilities for real-time operations
support
 Quick navigation with intuitive Web and Windows consoles

21. Server and Application monitoring with Nagios

22. Feature of Nagios
 24x7 monitoring
 application monitoring
 monitoring of various servers, services
 custom email notifications for persons on-duty

23. Server and Application monitoring by Cacti

24. Features of Cacti
 Unlimited graph items
 Graph templates
 Tree, list, and preview views of graph data
 User-based management and security

25. Virtual Network Computing
Bank Asia uses Real VNC software for Virtual
Network Computing.

26. Features
 Real VNC uses the RFB prtocol for Data transfer via TCP
port 5900.
 RealVNC is a program to computers remotely take over.
 It consists of two parts: a server and client component .

27. Conclusion
 Server Load Balancing System can be easily
implemented in the existing network infrastructure.
 For the future network planning I would suggest
application of intelligent networking in Bank Asia.
 This internship was a great experience and I am
looking forward to use this experience in future.