Command Line Reference Guide

21
Internet Group Management Protocol (IGMP)
The IGMP commands are supported on the S5000 switch.
This chapter contains the following sections:
IGMP Commands
IGMP Snooping Commands
IGMP Commands
FTOS supports IGMPv1/v2/v3 and is compliant with RFC-3376.
Important Points to Remember
FTOS 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 maximum number of interfaces supported is 31 on the S5000.
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.
S5000
Syntax
clear ip igmp groups [group-address | interface-type slot/port]
Parameters
group-address
(OPTIONAL) Enter the IP multicast group address in dotted decimal
format.
interface-type
slot/port
Enter the interface type followed by slot/port or number information.
Valid slot numbers are 0-11. The valid port numbers for each interface
type are listed below.
473