What is the main function of network layer?

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Tags

1. #paths
2. #different
3. #function
4. #functions
5. #primary
6. #permit
7. #virtual
8. #these
9. #routers
10. #known
11. #travel
12. #algorithms
13. #which
14. #network
15. #packets
16. #interconnected
17. #networks
18. #circuits
19. #forwarding
20. #layer
21. #determine