IGMP Snooping
Chapter 13. IGMP Snooping
13.1 Brief Introduction to IGMP Snooping
IGMP (Internet Group Management Protocol) is a part of IP protocol which is used to
support and manage the IP multicast between host and multicast router. IP multicast allows
transferring IP data to a host collection formed by multicast group. The relationship of
multicast group member is dynamic and host can dynamically add or exit this group to reduce
network load to the minimum to realize the effective data transmission in network.
IGMP Snooping is used to monitor IGMP packet between host and routers. It can
dynamically create, maintain, and delete multicast address table according to the adding and
leaving of the group members. At that time, multicast frame can transfer packet according to
his own multicast address table.
13.2 IGMP Snooping Configuration
13.2.1 Brief Configuration of IGMP Snooping
Table 13-1 Brief configuration of IGMP Snooping
IGMP
Snooping
basic
configuration
Modify and
optimize
IGMP
Snooping
configuration
Configure IGMP Snooping multicast interface
aging time
Configure IGMP Snooping
max-response-time
Configure IGMP Snooping interface fast-leave
Configure the number of the multicast group
allowed learning
Configure IGMP-Snooping multicast learning
strategy
Configure IGMP-Snooping CSS
Configure IGMP Snooping multicast VLAN
Configure port record host MAC
Configure port whether waive research