NOTE:
IGMPv2 works both in ip mode and mac mode. Lookup-mode is applicable with IGMP disabled on all
VLANs.
Syntax
ip igmp lookup-mode
Options
mac
: Uses MAC look-up. (Default value)
ip
: Uses IP look-up.
igmp reload
This command is used to reset the IGMP state on all interfaces.
Syntax
igmp reload
Example output
When IGMP is in Error State:
IGMP application is in Error State as System Resources are exhausted. Traffic will flood.
Please disable IGMP on all VLANs or Issue the Command "igmp reload" to take it out of Error.
Refer to your product manual for information on IGMP resource consumption.
this is the output for igmp reload
ip igmp
Use the
vlan
context to configure IGMPv3 on the switch.
Syntax
ip igmp
Options
last-member-query-interval
: Sets the time interval that the querier waits to receive a response from
members to a group-specific query message. It also specifies the amount of time between successive group-
specific query messages; the default value is 1 second.
query-max-response-time
: Sets the time interval to wait for a response to a query; the default value is 10
seconds.
robustness
: Sets the number of times to retry a query; the default value is 2.
version
: Sets the IGMP version to use; the default value is 2.
lookup-mode
: Sets the IGMP snooping lookup mode. (This option is found using the
igmp
command in the
config mode.)
ip igmp version
This command sets the IGMP version and completes igmpv3 configuration, enabling igmpv3 on the switch. Note
that the default value is 2.
Syntax
ip igmp version
no ip igmp version
Parameters
Chapter 2 Multimedia traffic control with IP multicast (IGMP)
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