Networking: Difference between Transport layer and Networking Layer

Question

In Internet Model there are four layers: Link -> Networking -> Transport -> Application.

I don\'t really know the difference between networking layer and transport layer

Answer 1

Transport layer:

• Logical communication between processes.

Network layer:

• Logical communication between hosts.

Transport layer:

• Responsible for checking that data available in session layer are error free.

Network layer:

• Responsible for logical addressing and translating logical addresses (ex. amazon.com) into physical addresses (ex. 180.215.206.136)

Transport layer: Protocols used at this layer are :

• TCP(Transmission Control Protocol)
  
• UDP(User Datagram Protocol )
  
• SCTP(Stream Control Transmission Protocol)

Network layer: Protocols used at this layer are :

• IP(Internet Protocol)
  
• ICMP(Internet Control Message Protocol)
  
• IGMP(Internet Group Message Protocol)
  
• RARP(Reverse Address Resolution Protocol)
  
• ARP(Address Resolution Protocol)

Transport layer:

• This layer ensures that the protocols operated at this layer provide reliable end-to-end flow and error control.

Network layer:

• This layer controls routing of data from source to destination plus the building and dismantling data packets.