Administrator Guide

Internet Group Management Protocol (IGMP)
IGMP and IGMP snooping commands are supported by the Dell Networking OS on the switch.
This chapter contains the following sections:
• IGMP Commands
• IGMP Snooping Commands
Topics:
• IGMP Commands
• IGMP Snooping Commands
IGMP Commands
The system supports IGMPv1/v2/v3 and is compliant with RFC-3376.
Important Points to Remember
• The system supports protocol-independent multicast-sparse (PIM-SM) and protocol-independent source-specific multicast (PIM-
SSM) include and exclude modes.
• IGMPv2 is the default version of IGMP on interfaces. You can configure IGMPv3 on interfaces. It is backward compatible with
IGMPv2.
• The switch supports up to 95 interfaces.
• There is no hard limit on the maximum number of groups supported.
• IGMPv3 router interoperability with IGMPv2 and IGMPv1 routers on the same subnet is not supported.
• An administrative command (ip igmp version) is added to manually set the IGMP version.
• All commands previously used for IGMPv2 are compatible with IGMPv3.
clear ip igmp groups
Clear entries from the group cache table.
C9000 Series
Syntax
clear ip igmp groups [group-address | interface]
Parameters
group-address (OPTIONAL) Enter the IP multicast group address in dotted decimal format.
interface interface Enter the following keywords and slot/port or number information:
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then
the slot/port information.
• For a port channel interface, enter the keywords port-channel then a number.
• For a VLAN interface, enter the keyword vlan then a number from 1 to 4094.
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.
The following is a list of the Dell Networking OS version history for this command.
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834 Internet Group Management Protocol (IGMP)