Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - MULTICAST ROUTING CONFIGURATION GUIDE 2010-10-07 Configuration Manual page 72

JunosE 11.3.x Multicast Routing Configuration Guide
ip igmp last-member-query-interval
ip igmp querier-timeout
50
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.
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.
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
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