Operation Manual - Multicast
Quidway S3500 Series Ethernet Switches Chapter 3 IGMP Snooping Configuration
Huawei Technologies Proprietary
3-2
Internet / Intranet
Video stream
VOD Server
Layer 2 Ethernet Switch
Video stream
Multicast group member Non-multicast
group member
Multicast router
Video stream
Video stream
Video stream
Non-multicast
group member
Figure 3-1 Multicast packet transmission without IGMP Snooping
When IGMP Snooping runs, the packets are not broadcast on Layer 2. See the
following figure:
Internet / Intranet
Video stream
VOD Server
Layer 2 Ethernet Switch
Video stream
Multicast group member Non-multicast
group member
Multicast router
Video stream
Video stream
Video stream
Non-multicast
group member
Figure 3-2 Multicast packet transmission when IGMP Snooping runs
3.1.2 Implement IGMP Snooping
I. Related concepts of IGMP Snooping
To facilitate the description, this section first introduces some related switch concepts of
IGMP Snooping:
z Router Port: The port of the switch, directly connected to the multicast router.
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