Configure the Port-Purge Interval

The default for this feature is 260 seconds. In this example, the port-purge interval is 130 seconds.

1. Configure the port-purge interval.

   SEFOS# configure terminal
   SEFOS(config)# ipv6 mld snooping port-purge-interval 130
   SEFOS(config)# end

   If an entry is learned on the forwarding database, after an interval of 130 seconds, the entry is removed from the forwarding database.

2. View the configuration.

   SEFOS# show ipv6 mld snooping globals
    
   Snooping Configuration
   -----------------------------
   MLD Snooping globally enabled
   MLD Snooping is operationally enabled
   Multicast forwarding mode is MAC based
   Proxy reporting globally enabled
   Router port purge interval is 125 seconds
   Port purge interval is 130 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

   The following output is displayed prior to the configuration of the port-purge interval.

   SEFOS# show ipv6 mld snooping forwarding-database
    
    Vlan  MAC-Address          Ports
    ----  -----------------    -----
       4  33:33:00:01:00:01    Ex0/1

   After 130 seconds, the output will be null. Executing the show command in this manner generates no output.