B&B Electronics EIR508-T - Manual - Manual (Page 55)

Manual Documentation Number: EIR508-2xx-T 1713m 55
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com
B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com
IGMP
The Internet Group Management Protocol (IGMP) is an internal protocol of
the Internet Protocol (IP) suite. IP manages multicast traffic by using
switches, routers, and hosts that support IGMP. Enabling IGMP allows the
ports to detect IGMP queries and report packets and manage IP multicast
traffic through the switch. IGMP has three fundamental types of messages:
Message Description
Query
A message sent from an IGMP router or switch
requesting a response from each host belonging to
the multicast group.
Report
A message sent by a host indicating that the host
wants to be or is a member of a given group.
Leave Group
A message sent by a host indicating that the host
has is no longer a member of a specific multicast
group.
IGMP Snooping interface
[NOTE] If the configuration is not saved, it will be lost when the switch
is powered off.