Network Layer And Data Link Layer

  • Thread starter wany
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  • #1
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Homework Statement


If the network layer is sending a message from A to D via B, it can be sure that a message sent by the data link layer from A to B will always arrive at B, and from B to D will always get to D. How is it possible for the network layer not to be able to correctly deliver a message from A to D.

Assume this 4-node network:

A---B----D
|.....|......|
|---C ----|

ignore the periods!!! Basically A is connected with B and C; B is connected with A, C and D; C is connected with A, B, D; D is connected with B and C


Homework Equations





The Attempt at a Solution



I am not sure about this one. Could it be if the two nodes arent using the same addressing scheme? Any help would be appreciated.
 

Answers and Replies

  • #2
Network layer is basically used when we send data from one network to another,... It usually involves routers etc.

for sending data within one network, data link layer is used.
 
  • #3
Network layer is basically used when we send data from one network to another,... It usually involves routers etc.

for sending data within one network, data link layer is used.
 

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