Igmp Snooping Configuration; Igmp Snooping Overview - Zte ZXR10 5900E Series User Manual

10
C h a p t e r
IGMP Snooping
Configuration
Table of Contents

IGMP Snooping Overview....................................................87

Configuring IGMP Snooping.................................................89
IGMP Snooping Configuration Example .................................92
IGMP Snooping Maintenance and Diagnosis...........................93
IGMP Snooping Overview
IGMP snooping is one of layer 2 functions of the switch, which can
limit the forwarding of IP multicast traffic.
As shown in Figure 23, IGMP runs between host and multicast
router. IGMP communications between host and router so that
the switch can learn which ports are multicast members and get
multicast forward table before forwarding multicast packets. Mul-
ticast packet is sent to the port in the multicast forward table only.
IGMP snooping avoid unnecessary network bandwidth waste and
improve the switch utilization.
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