CLI Guide

• When enabled, IGMP snooping Querier does not start if there is a statically configured multicast
router interface in the VLAN.
• When enabled, IGMP snooping Querier starts after one query interval in case no IGMP general query
(with IP SA lower than its VLAN IP address) is received on any of its VLAN members.
• When enabled, IGMP snooping Querier periodically sends general queries with an IP source address
of the VLAN interface. If it receives a general query on any of its VLAN member, it checks the IP
source address of the incoming frame.
If the IP SA in the incoming IGMP general query frame is lower than the IP address of the VLAN
interface, the switch disables its IGMP snooping Querier functionality.
If the IP SA of the incoming IGMP general query is higher than the VLAN IP address, the switch
continues to work as an IGMP snooping Querier.
clear ip igmp snooping groups
Clear snooping entries from the group cache table.
Syntax
clear ip igmp snooping groups [group-address interface |
interface]
Parameters
group-address (OPTIONAL) Enter the IP multicast group address in dotted
decimal format.
interface interface Enter the following keywords and the interface information:
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port/subport
information.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE then the slot/port/subport information.
• For a 25-Gigabit Ethernet interface, enter the keyword
twentyFiveGigE then the slot/port/subport
information.
• For a 50-Gigabit Ethernet interface, enter the keyword
fiftyGigE then the slot/port/subport information.
• For a 100-Gigabit Ethernet interface, enter the keyword
hundredGigE then the slot/port information.
• For a port channel interface, enter the keywords port-
channel then a number.
Command Modes EXEC
Command History
This guide is platform-specific. For command information about other platforms,
see the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
Internet Group Management Protocol (IGMP)
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