Internet Group Management Protocol

Also found in: Acronyms, Wikipedia.

Internet Group Management Protocol

(IGMP) An extension to the Internet Protocol, used by IP hosts to report their host group memberships to immediately-neighbouring multicast routers.

See also MBONE.

Version 1 of IGMP is defined in Appendix 1 of RFC 1112.

Version 2 is proposed in RFC 2236.
This article is provided by FOLDOC - Free Online Dictionary of Computing (
Mentioned in ?
References in periodicals archive ?
Ocean Matrix, a provider of interface solutions for video and pro-AV users, has unveiled HDMI signal extender that routes up to 99 HDMI sources to multiple HDMI devices over a local area network (LAN) using IGMP (Internet Group Management Protocol).
These new capabilities enable sysadmins to inspect IGMP (Internet Group Management Protocol) data to list multicast router ports, multicast groups with active subscribers and their associated interfaces, all of which are important to many modern networking scenarios, including streaming media.
The EtherNet/IP products include a full range of programmable controllers, managed switches with Internet Group Management Protocol (IGMP) snooping capability, and a variety of I/O devices.

Full browser ?