This document provides an overview of the layers that make up the Internet Protocol stack. It discusses the responsibilities and duties of each layer, including: The physical layer is responsible for moving individual bits between nodes and defines electrical and mechanical specifications. The data link layer is responsible for moving frames between nodes reliably and transforms the physical layer into an error-free link. The network layer is responsible for delivering packets from the source host to the destination host and performs logical addressing and routing. The transport layer is responsible for delivering messages from one process to another through port addressing, segmentation, error control, and flow control. The application layer provides services to users such as file transfer, mail, and directories.

1. Internet ProtocolStack
Yash Patel-130970107044
RajuVagehla-130970107060

2. Internet
Protocol
Stack

3. Physical Layer
 The physical layer is responsible for movements of individual bits from
one hop (node) to the next
 Mechanical and electrical specification, the procedures and functions
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4. Physical Layer:
Duties
 Physical characteristics of interfaces and media
 Representation of bits
 Data rate
 Synchronization of bits
 Line configuration
 Physical topology
 Transmission mode
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5. Data Link
Layer: Duties
 Framing
 Physical addressing
 Flow control
 Error control
 Access control
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6. Data Link Layer
 The data link layer is responsible for moving frames from
one hop (node) to the next
 Transform the physical layer to a reliable (error-free) link
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7. Hop-to-Hop
Delivery
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8. Network Layer  The network layer is responsible for the delivery of packets
from the source host to the destination host
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9. Network Layer:
Duties
 Logical addressing and routing
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10. Transport Layer  The transport layer is responsible for delivery of a message
from one process to another
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11. Transport
Layer: Duties
 Service-point (port) addressing
 Segmentation and reassembly
 Connection control
 Flow control
 Error control
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12. Reliable Process-
to-Process Delivery
of a Message
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13. Application Layer
 Application layer is responsible for providing services to
the user
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14. Application
Layer:Services
 Network virtual terminal
 Mail services
 File transfer, access, and management
 Directory services
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15. TCP/IP andOSI
Model
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16. TCP/IP
ProtocolSuite
 Host-to-network : Physical and data link layer
 No specific protocol
 Network layer
 IP(Internet Protocl),ARP(Address Resolution Protocol),
RARP(Reverse ARP), ICMP(Internet Control Message Protocol),
IGMO(InternetGroup Message Protocol)
 Transport layer
 TCP(TransmissionControl Protocol), UDP(User Datagram Protocl),
SCTP(Stream ControlTransmission Protocol),
 Application Layer
 Combined session, presentation, and application layers
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17. Relationship of
Layers and
Addresses
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