Dell Networking S4810, Reference Manual

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Internet Group Management Protocol
(IGMP)
The IGMP commands are supported by the Dell Networking operating software on the S4810 platform.
This chapter contains the following sections:
• IGMP Commands
• IGMP Snooping Commands
IGMP Commands
Dell Networking OS supports IGMPv1/v2/v3 and is compliant with RFC-3376.
Important Points to Remember
• Dell Networking OS 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.
• On the S-Series, the maximum number of interfaces supported 31.
• 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.
S4810
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 Port-Channel interface, enter the keyword
port-
channel
then the slot/port information. The range is
from 1 to 128.
Internet Group Management Protocol (IGMP)
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