How does IGMP snooping work?

Related questions

1. What is spoofing in networking?
2. What type of MITM attack would use ARP poisoning?
3. What is the primary purpose of ARP?
4. What is IGMP snooping and why would I need it?
5. Is DNS the same as DHCP?
6. What does IP ARP inspection trust do?
7. How do I disable IGMP snooping?
8. What is no IP source route?
9. What does IP source guard protect against?
10. What does DHCP snooping prevent?

Tags

1. #router
2. #snooping
3. #interface
4. #hosts
5. #traffic
6. #membership
7. #report
8. #constrain
9. #listening
10. #entry
11. #sends
12. #group
13. #implies
14. #between
15. #switch
16. #allows
17. #table
18. #connected
19. #multicast