16.IGMP Snooping 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.
Command Function
Mode
Page
Basic IGMP Commands
ip igmp snooping
Enables IGMP snooping
GC
3-108
ip igmp snooping vlan
Adds an interface as a member of a
GC
3-109
static
multicast group
ip igmp snooping
Configures the IGMP version for
version
snooping
GC
3-109
show ip igmp snooping Shows the IGMP snooping configuration PE
3-110
show bridge multicast
Shows the IGMP snooping MAC
PE
3-111
multicast list
IGMP Querier Commands
ip igmp snooping
Allows this device to act as the querier for
GC
3-112
querier
IGMP snooping
ip igmp snooping
Configures the query count
GC
3-112
query-count
ip igmp snooping
Configures the query interval
GC
3-113
query-interval
ip igmp snooping
Configures the report delay
GC
3-114
query-max-response-ti me
ip igmp snooping
Configures the query timeout
GC
3-114
query-time-out
show ip igmp snooping Shows the IGMP snooping configuration PE
3-110
Mulitcast Router Commands
ip igmp snooping vlan
Adds a multicast router port
GC
3-115
mrouter
show ip igmp snooping Shows multicast router ports
PE
3-116
mrouter
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