Administrator Guide
Location Description
2/11
• Interface GigabitEthernet 2/11
• ip pim sparse-mode
• ip address 10.11.12.2/24
• no shutdown
2/31
• Interface GigabitEthernet 2/31
• ip pim sparse-mode
• ip address 10.11.23.1/24
• no shutdown
3/1
• Interface GigabitEthernet 3/1
• ip pim sparse-mode
• ip address 10.11.5.1/24
• no shutdown
3/11
• Interface GigabitEthernet 3/11
• ip pim sparse-mode
• ip address 10.11.13.2/24
• no shutdown
3/21
• Interface GigabitEthernet 3/21
• ip pim sparse-mode
• ip address 10.11.23.2/24
• no shutdown
Receiver 1
• Interface VLAN 300
• ip pim sparse-mode
• ip address 10.11.3.1/24
• untagged GigabitEthernet 1/1
• no shutdown
Receiver 2
• Interface VLAN 400
• ip pim sparse-mode
• ip address 10.11.4.1/24
• untagged GigabitEthernet 1/2
• ip igmp access-group igmpjoinfilR2G2
• no shutdown
Enabling IGMP Immediate-Leave
If the querier does not receive a response to a group-specific or group-and-source query, it sends another (querier robustness value).
Then, after no response, it removes the group from the outgoing interface for the subnet.
IGMP immediate leave reduces leave latency by enabling a router to immediately delete the group membership on an interface after
receiving a Leave message (it does not send any group-specific or group-and-source queries before deleting the entry).
• Configure the system for IGMP immediate leave.
ip igmp immediate-leave
• Configure the system to immediately delete the IPv6 group membership on an interface after receiving a leave message.
ipv6 mld immediate-leave
• View the enable status of the IGMP immediate leave feature.
EXEC Privilege mode
show ip igmp interface
show ipv6 mld interface
View the enable status of this feature using the command from EXEC Privilege mode, as shown in the example in Selecting an IGMP
Version.
Internet Group Management Protocol (IGMP)
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