Reference Guide

23
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
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:
1054
Internet Group Management Protocol (IGMP)