this is the it presentation

1. Google Global Cache (GGC) Operations for YouTube,
Telecommunication between Mobile, IP Phone, Telephone
&
Mikrotik Configuration

2. Submitted By
MD. Shahin Alam
ID: 200234002
Semester: 8th (A)
Batch: 34th
Dept of Computer Science and Engineering
Supervised By
Mohammad Salah Uddin Chowdhury
Assistant Professor and Chairman
Dept of Computer Science and Engineering
BGC Trust University Bangladesh
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3. Acquaintance of the Company
Basics of Networking
Devices Used
Mikrotik Basic Knowledge
Mikrotik Basic and DHCP Configuration
VLAN Configuration
VPN Configuration
Using Modem Mikrotik Configuration
Google Global Cache(GGC) operations for YouTube
Telecommunication between Mobile, IP Phone, Telephone
Server Visit
Conclusion
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4. Infocom Limited is a concern of A K Khan Telecom Limited. All these are under the umbrella of A K Khan
Group. A. K. Khan and Company Limited is one of the oldest and most renowned private sector
organizations in Bangladesh established in 1945.
Infocom Limited has started it’s ISP operation in Chattogram. Later extended it’s service to Dhaka. And now
it’s operated from Dhaka.
Infocom is a trusted name in Bangladesh for Internet and Data Communication Service, Our network
ensures excellent quality, high capacity and low latency Internet connectivity. We have established our own
dedicated link through an underground fiber optic via NTTN and Radio. Our network maintains redundancy
of all hardware used. SEA-MEE-WE-4 and ITC cables ensure fast access speeds to the World Wide Web.
Name: Infocom Powered By AK Khan Telecom
Address: Batali Hills, Ambagan, Chattogram-4000.
Phone: 01521401497
E-mail: fahim.uddin@aktelecom.net
Web: http://www.infocomltd.com/
Acquaintance of the Company
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SHAHIN

5. A collection of computers, servers, mainframes, network devices, peripherals, or other devices connected to
one another allowing for data to be shared and used. A great example of a network is the Internet,
connecting millions of people all over the world together. Below is an example image of what a home
network or small office network may look. As can be seen below, this network is setup to enable all
computers and other network devices with network abilities, such as the TiVo, to communicate with each
other, as well as share the single Internet connection.
Basics of Networking
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SHAHIN

6. OSI stands for Open Systems Interconnection. It was developed by ISO – ‘International Organization for
Standardization’, in the year 1984. It is a 7-layer architecture with each layer having specific functionality to
perform. All these 7 layers work collaboratively to transmit the data from one person to another across the
globe.
Basics of Networking
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7. TCP/IP was designed and developed by the Department of Defense (DoD) in the 1960s and is based on
standard protocols. It stands for Transmission Control Protocol/Internet Protocol. The TCP/IP model is a
concise version of the OSI model. It contains four layers, unlike the seven layers in the OSI model.
The number of layers is sometimes referred to as five or four. Here In this article, we’ll study five layers. The
Physical Layer and Data Link Layer are referred to as one single layer as the ‘Physical Layer’ or ‘Network
Interface Layer’ in the 4-layer reference.
Basics of Networking
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8. An IP (internet Protocol) address is a unique address that identifies a device on the internet or a
local network.
 IP address consists of 32 bits(binary) that is divided into 4 octates.
 Each octet differs from value of 0 - 255.
 IP address must be unique in a network.
 IP address has two portions – network and host.
 IP address is of five types.
IP Address
Class Range of Value Portion
A 0 - 127 Network-Host-Host-Host
B 128 - 191 Network-Network-Host-Host
C 192 - 223 Network-Network-Network-Host
D 224 - 239 Used for Multicasting
E 240 - 254 Used for research
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SHAHIN

9. Hardware devices that are used to connect computers, printers, fax machines and other electronic devices
to a network are called network devices. These devices transfer data in a fast, secure and correct way over
same or different networks. Network devices may be inter-network or intra-network. Some devices are
installed on the device, like NIC card or RJ45 connector, whereas some are part of the network, like router,
switch, etc. Let us explore some of these devices in greater detail.
Here I am trying to give some details and working procedure of some networking devices which are
playing very important role to networking.
Mostly common networking devices used are:
• Hubs
• Switches
• Bridges
• Routers
• Gateways
• Network Interface Cards (NICs)
• Wireless access points
• Modems
Devices Used
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SHAHIN

10. Mikrotik is a Latvian company which was founded in 1996 to develop routers and wireless ISP systems.
Mikrotik now provides hardware and software for Internet connectivity in most of the countries around
the world. The main product of MikroTik is an operating system based on the Linux Kernel, known as the
MikroTik RouterOS. They perception in using industry standard PC hardware and complete routing
systems allowed us in 1997 to create the Router OS software system that provides extensive stability,
controls for all kinds of data interfaces and routing. In 2002 we decided to make their own hardware, and
the Router BOARD brand was born.
Mikrotik OS:
Mikrotik OS is an operating system. The OS is Linux Kernel based very stable. The operating system comes
with different license levels ranging from 0 to 6, where 0 is a 24 hour trial version. In trial mode you can
test all features of Router OS for free. You can compare the different license level features here. Installing
Router OS is very easy. Either download the ISO image, burn it to CD and boot from it. Net install will write
Router OS to any secondary drive you have attached to our Windows PC. Move the drive to our Router PC
and boot it. Both installation methods, upgrade files and more can be found here.
Mikrotik Basic Knowledge
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11. Step 1: Assigning WAN & LAN IP Addresses Step 2: Assigning DNS Server Address
Mikrotik Basic & DHCP Configuration
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12. Step 3: Assigning Gateway Address Step 4: NAT Configuration
Mikrotik Basic & DHCP Configuration
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13. Step 5: Checking Network Connectivity Step 6: DHCP Configuration
Mikrotik Basic & DHCP Configuration
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14. Step 1: Assigning VLAN Name, ID, Interface
VLAN Configuration
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15. Step 2: Assigning VLAN Name, ID, Interface Step 3: Check 2 VLAN has Created
VLAN Configuration
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16. Step 1: DHCP Configuration Step 2: Changing WLAN mode to AP Bridge
VPN Configuration
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17. Step 3: Enable PPTP Server Step 4: Create a profile for PPTP VPN
VPN Configuration
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18. Step 5: Assigning Password & Service Step 6: Configuring VPN in PC/Laptop
VPN Configuration

19. Step 1: Basic Mikrotik Configuration & DHCP Configuration
Using Modem Mikrotik Configuration
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20. Step 2: Adding the default route distance Step 3: Assigning Cloud Address, User Name & Password
Using Modem Mikrotik Configuration
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21. Google Global Cache (GGC) is a distributed caching infrastructure deployed by Google in collaboration with
Internet Service Providers (ISPs) and network operators. It aims to improve the performance and user experience
of Google services like YouTube by placing caches of popular content closer to end-users within the ISPs' networks.
Fig: GGC Network Diagram
GGC operations for YouTube
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22. Telecommunication between mobile phones, IP phones, and traditional telephones (often referred to as Plain Old
Telephone Service or POTS) can be achieved through various means, as they operate on different networks and
technologies.
Fig: Communication Diagram
Telecommunication between Mobile, IP
Phone, Telephone
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23. Server Visit
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24. We got the opportunity to work with the Infocom Service and Support team. That’s gave us the practical knowledge
about how the ISP’s gave the internet services to the clients. We have learned a lot from this industrial training.
This internship will do a good job when we will go to the practical field.
Conclusion
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