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| Sun Ethernet Fabric Operating System ### MLDS Administration Guide

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## Enable Query Transmission on Topology Change

The function that transmits MLD queries only when the topology changes is disabled by default.

1. Specify that MLD general queries should be transmitted when any change occurs in the network topology.

       SEFOS(config)# configure terminal
       SEFOS(config)# ipv6 mld snooping send-query enable
       SEFOS(config)# end

2. Ensure that general queries will be transmitted when a change occurs in the network topology.

       SEFOS# show ipv6 mld snooping globals

       Snooping Configuration
         -----------------------------
         MLD Snooping globally enabled
         MLD Snooping is operationally enabled
         Transmit Query on Topology Change globally enabled
         Multicast forwarding mode is MAC based
         Proxy reporting globally enabled
         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

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