Dell Force10 S55T S55 Configuration Guide FTOS 8.3.5.3 - Page 276

www.dell.com | support.dell.com Figure 14-5. IGMP Membership Queries: Leaving and Staying in Groups Membership Queries: Leaving and Staying Querier Interface Multicast Group Filter Source Source Address Timer Mode Timer 1/1 224.1.1.1 Include 10.11.1.1 LQMT 1/1 10.11.1.2 LQMT 224.2.2.2 GMI Exclude None IGMP Group-and-Source Specific Query Type: 0x11 Group Address: 224.1.1.1 Number of Sources: 2 Source Address: 10.11.1.1, 10.11.1.2 1 Non-querier builds identical table and waits Other Querier Present Interval to assume Querier role Queries retransmitted Last Member Query Count times at Last Member 2 Query Interval Type: 0x17 Number of Group Records: 1 Record Type: 6 4 Number of Sources: 2 Multicast Address: 224.1.1.1 Source Addresses: 10.11.1.1, 10.11.1.2 IGMP Leave message Non-Querier 2/1 Type: 0x11 3 Group Address: 224.0.0.1 Number of Sources: 0 IGMP General Membership Query Type: 0x22 Number of Group Records: 1 Record Type: 2 Number of Sources: 0 Multicast Address: 224.2.2.2 IGMP Membership Report Host 1 Host 2 Configuring IGMP Configuring IGMP is a two-step process: 1. Enable multicast routing using the command ip multicast-routing. 2. Enable a multicast routing protocol. Related Configuration Tasks • Viewing IGMP Enabled Interfaces on page 276 • Selecting an IGMP Version on page 277 • Viewing IGMP Groups on page 277 • Adjusting Timers on page 278 • Configuring a Static IGMP Group on page 279 • Prevent a Host from Joining a Group on page 447 • Enabling IGMP Immediate-leave on page 279 • IGMP Snooping on page 280 • Fast Convergence after MSTP Topology Changes on page 282 • Designating a Multicast Router Interface on page 282 Viewing IGMP Enabled Interfaces Interfaces that are enabled with PIM-SM are automatically enabled with IGMP. View IGMP-enabled interfaces using the command show ip igmp interface command in the EXEC Privilege mode. 276 | Internet Group Management Protocol