Dell Force10 S55T FTOS Command Line Reference Guide for the S55 System FTOS 8. - Page 427

14 Internet Group Management Protocol (IGMP) Overview The platforms on which a command is supported is indicated by the character - e for the E-Series, c for the C-Series, and s for the S-Series - that appears below each command heading. 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 PIM-SM and PIM-SSM include and exclude modes. • IGMPv2 is the default version of IGMP on interfaces. IGMPv3 can be configured on interfaces, and is backward compatible with IGMPv2. • The maximum number of interfaces supported is 512 on the E-Series. On the C-Series and S-Series 31 interfaces are supported. Note: The S55 supports up to 95 interfaces. • Maximum number of groups supported - no hard limit • 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. The commands include: • clear ip igmp groups • debug ip igmp • ip igmp access-group • ip igmp group-join-limit • ip igmp immediate-leave • ip igmp last-member-query-interval Internet Group Management Protocol (IGMP) | 427