Installation manual

Operation Manual - Multicast
Quidway S3000-EI Series Ethernet Switches Chapter 2
IGMP Snooping Configuration
Huawei Technologies Proprietary
2-2
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 2-2 Multicast packet transmission when IGMP Snooping runs
2.1.2 Imp
I. Related concepts of IGMP Snooping
section first introduces some related switch concepts of
IGMP Snooping:
rectly connected to the multicast router.
z Multicast member port: The port connected to the multicast member. The
st group: The multicast group is identified with MAC multicast
timer times out, it
z port joins an IP multicast group,
it transmits IGMP specific query
z
before the timer times out, it will remove the port from the
lement IGMP Snooping
To facilitate the description, this
z Router Port: The port of the switch, di
multicast member refers to a host joined a multicast group.
z MAC multica
address and maintained by the Ethernet switch.
z Router port aging time: Time set on the router port aging timer. If the switch has
not received any IGMP general query message before the
considers the port no longer as a router port.
Multicast group member port aging time: When a
the aging timer of the port will begin timing. The multicast group member port
aging time is set on this aging timer. If the switch has not received any IGMP
report message before the timer times out,
message to the port.
Maximum response time: When the switch transmits IGMP specific query
message to the multicast member port, the Ethernet switch starts a response timer,
which times before the response to the query. If the switch has not received any
IGMP report message
multicast member ports