Dell PowerEdge XL 5133-4 Dell PowerEdge FTOS Command Line Reference Guide for - Page 123

10 Internet Group Management Protocol (IGMP) IGMP Commands The Dell Force10 operating software (FTOS) supports internet group management protocol (IGMP) snooping version 2 and 3 on all Dell Force10 systems: • clear ip igmp groups • debug ip igmp • ip igmp snooping flood • show ip igmp groups • show ip igmp interface • show ip igmp snooping mrouter Important Points to Remember • FTOS supports version 1, version 2, and version 3 hosts. • FTOS IGMP snooping implementation is based on IP multicast address (not based on Layer 2 multicast mac-address) and the IGMP snooping entries are in Layer 3 flow table not in Layer 2 forwarding information base (FIB). • FTOS IGMP snooping implementation is based on draft-ietf-magma-snoop-10. • IGMP snooping is supported on all M I/O Aggregator stack members. • IGMP snooping is enabled by default on the switch. • A maximum of 8k groups and 4k virtual local area networks (VLAN) are supported. • IGMP snooping is not supported on default VLAN interface. • Flooding of unregistered multicast traffic is enabled by default. • Queries are not accepted from the server side ports and are only accepted from the uplink LAG. • Reports and Leaves are flooded by default to the uplink LAG irrespective of whether it is an mrouter port or not. Internet Group Management Protocol (IGMP) | 121