Show the network layer in an internetwork, Computer Networking

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Q. Show the Network layer in an internetwork?

- Receives data from Transport layer

- Responsible for creating Packet

- Each packet contains

- Universal Address of Source

- Universal Address of Destination

- Makes sure the pkt is correct size.

- If the packet is too large,

- Then it will be fragmented

- Also add fields for error control

159_Show the Network layer in an internetwork.png

Figure Network layer at a Router

- Responsible for routing the packet

- When packet arrives, router finds the interface from which the pkt must be sent.

- This is done by utilizing routing Table.

- If necessary, perform fragmentation

Network layer at the destination

258_Show the Network layer in an internetwork1.png

- Responsible for Address Verification.

- Ensure the destination is correct.

- As well checks to see the packet has been corrupted during transmission.

- If corrupted then discards the packet.

- If the packet is fragment, it waits all fragments have arrived

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