24-Port Layer 3 Switch Management Guide

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OMMAND
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INE
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NTERFACE
4-196
Multicast Filtering Commands
This switch uses IGMP (Internet Group Management Protocol) to query
for any attached hosts that want to receive a specific multicast service. It
identifies the ports containing hosts requesting a service and sends data
out to those ports only. It then propagates the service request up to any
neighboring multicast switch/router to ensure that it will continue to
receive the multicast service.
Note that IGMP query can be enabled globally at Layer 2, or enabled for
specific VLAN interfaces at Layer 3. (Layer 2 query is disabled if Layer 3
query is enabled.)
IGMP Snooping Commands
Command Groups Function Page
IGMP Snooping Configures multicast groups via IGMP snooping or
static assignment, sets the IGMP version, displays
current snooping and query settings, and displays
the multicast service and group members
4-196
IGMP Query
(Layer 2)
Configures IGMP query parameters for multicast
filtering at Layer 2
4-201
IGMP (Layer 3) Configures the IGMP protocol used with multicast
routing
4-205
Command Function Mode Page
ip igmp snooping Enables IGMP snooping GC 4-197
ip igmp snooping
vlan static
Adds an interface as a member of a
multicast group
GC 4-197
ip igmp snooping
version
Configures the IGMP version for snooping GC 4-198
show ip igmp
snooping
Shows the IGMP snooping and query
configuration
PE 4-199
show
mac-address-table
multicast
Shows the IGMP snooping MAC multicast
list
PE 4-200