Juniper JUNOSE 11.1.X MULTICAST ROUTING Configuration Manual page 72

JUNOSe 11.1.x Multicast Routing Configuration Guide
CAUTION: Issue this command only on IGMPv2 and IGMPv3 interfaces to which
one IGMP host is connected. If more than one IGMP host is connected to a LAN
through the same interface, and one host sends a leave group message, the router
removes all hosts on the interface from the multicast group. The router loses contact
with the hosts that must remain in the multicast group until they send join requests
in response to the router's next general group membership query.
ip igmp last-member-query-interval
ip igmp querier-timeout
50
Configuring IGMP Settings for an Interface
Use to specify that, when the router receives a leave group membership message
from a host associated with this interface, the router immediately removes that
host from the multicast group.
Use the IGMP-Immediate-Leave RADIUS attribute (VSA 26-97) in RADIUS
Access-Accept messages as an alternative method of configuring this value. The
RADIUS setting takes precedence over a CLI setting.
Example
host1:boston(config-if)#ip igmp immediate-leave
Use the no version to restore the default behavior, in which the router removes
a host from a multicast group if that host does not return a group membership
report within a certain length of time after receiving a group membership query
from the router.
See ip igmp immediate-leave.
Use to specify the last-member-query-interval value, in the range 1–255 tenths
of a second. When the router receives an IGMPv2 leave message or an IGMPv3
state change report, it sends out a query and expects a response within the time
specified by this value.
Using a lower value enables members to leave groups more quickly.
Example
host1:boston(config-if)#ip igmp last-member-query-interval 90
Use the no version to restore the default, 10-tenths of a second (1 second).
See ip igmp last-member-query-interval.
Use to set the time, in the range 1–400 seconds, that the interface waits for
queries from the current querier before sending query messages to assume
responsibility of querier.
Example
host1:boston(config-if)#ip igmp querier-timeout 200