IGMP
IGMP (Internet Group Management Protocol) is a Layer 3 protocol that IPv4 network hosts can use to announce to a router that they want to receive multicast traffic from a specific group.
IGMP currently has three versions whose primary characteristics are:
- IGMPv1
- Hosts send membership reports announcing to routers that they want to receive multicast traffic.
- Routers send membership queries to "ask" if hosts are still interested in receiving traffic.
- Expiry timers are used to remove hosts from multicast groups.
- IGMPv2
- Enhanced version of IGMP
- Includes mechanisms for hosts to leave a multicast group.
- IGMPv3
- Supports source filtering
Links:
https://networklessons.com/multicast/igmp-version-1
Links to this page:
- IGMP - Snooping Querier Election
- IGMP - Snooping Querier
- IGMP - access group
- IGMP - fast leave
- IGMP - filtering using ACLs
- IGMP - ip igmp snooping querier command
- IGMP - membership report
- IGMP - using VLAN access maps to filter multicast traffic
- IGMP Snooping internal interface
- IGMP default IOS configurations
- IGMP last member query interval
- IGMP membership query max response time
- IGMP membership reports destination
- IGMP report suppression
- IGMP snooping prevents report suppression
- IGMP snooping source IP address for messages
- IGMP snooping
- IGMP version 1 how hosts stop receiving multicast traffic
- IGMPv2 - leave group message mechanism
- IPv4 - header protocol field
- MAC address table static multicast entry
- Multicast - Local Network Control Block
- Multicast - PIM dense vs sparse mode
- Multicast - generating a routing table entry
- Multicast - ip igmp join-group vs ip igmp static-group
- Multicast Cisco Group Management Protocol
- Multicast IGMPv3 include and exclude modes
- Multicast OIL IIF mroute table
- Multicast PIM Designated Router sparse mode
- Multicast mapping agent IGMP membership report