Why is VLAN tagging required?

Related questions

1. What is the difference between trunk and access port?
2. What is VLAN tag?
3. What is Port tagging in VLAN?
4. What is Q in Q VLAN tagging?
5. What is difference between trunk and access port?
6. What is C tag and S tag?
7. What is 802.1 p tagging?
8. What is meant by tagged VLAN?
9. Is native VLAN untagged?
10. What is the purpose of VLAN frame tagging?

Tags

1. #frame
2. #physical
3. #accurately
4. #network
5. #other
6. #itself
7. #tagging
8. #logical
9. #belongs
10. #tagged
11. #packet
12. #easier
13. #recognition
14. #formed
15. #inside
16. #independent
17. #systems
18. #ethernet
19. #which