Enable the General Query Transmission Option

1. Enter Global Configuration mode.

   SEFOS# configure terminal
   

2. Enable the transmission of the IGMP general query for any topology change.

   SEFOS(config)# ip igmp snooping send-query enable
   SEFOS(config)# end
   

3. Review the configuration.

   SEFOS# show ip igmp snooping globals
    
   Snooping Configuration
     -----------------------------
     IGMP Snooping globally enabled
     IGMP Snooping is operationally enabled
     IGMP Snooping Enhanced mode is disabled               
     Transmit Query on Topology Change globally enabled
     Multicast forwarding mode is MAC based
     Proxy globally disabled
     Proxy reporting globally enabled
     Filter is disabled
     Router port purge interval is 125 seconds
     Port purge interval is 260 seconds
     Report forward interval is 5 seconds
     Group specific query interval is 2 seconds
     Reports are forwarded on router ports
     Group specific query retry count is 2
     Multicast VLAN disabled
     Leave config level is Vlan based