Immediate-Leave - Juniper JUNOS OS 10.3 - SOFTWARE Manual

Complete Software Guide for Junos

immediate-leave

Syntax
Hierarchy Level
Release Information
Description
Required Privilege
Level
Related
Documentation
2374
®
OS for EX Series Ethernet Switches, Release 10.3
immediate-leave;
[edit logical-systems logical-system-name protocols igmp interface interface-name],
[edit protocols igmp interface interface-name]
Statement introduced in Junos OS Release 8.3.
Statement introduced in Junos OS Release 9.0 for EX Series switches.
When this statement is enabled on a routing device running IGMP version 2 (IGMPv2),
after the routing device receives a leave group membership message from a host
associated with the interface, the routing device immediately removes the group
membership from the interface and suppresses the sending of any group-specific queries
for the multicast group.
When this statement is enabled on a routing device running IGMP version 3 (IGMPv3),
after the routing device receives a report with the type BLOCK_OLD_SOURCES, the routing
device suppresses the sending of group-and-source queries but relies on the Junos
OS-supported host tracking mechanism to determine whether or not it removes a
particular source group membership from the interface.
NOTE: When issuing this command on IGMPv2 interfaces, ensure that the
IGMP interface has only one IGMP host connected. If more than one IGMPv2
host is connected to a LAN through the same interface, and one host sends
a done message, the routing device removes all hosts on the interface from
the multicast group. The routing device loses contact with the hosts that
properly remain in the multicast group until they send join requests in response
to the next general multicast listener query from the router.
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Specifying Immediate-Leave Host Removal for IGMP
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