What is M in go back n protocol?

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Tags

1. #protocol
2. #specific
3. #number
4. #receiver
5. #receiving
6. #sending
7. #request
8. #continues
9. #frames
10. #specified
11. #automatic
12. #repeat
13. #window
14. #packet
15. #instance
16. #without
17. #which
18. #acknowledgement
19. #definition
20. #process