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

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## Enable Multicast Router Port

1. Enter the configure mode for the VLAN.

       SEFOS# configure terminal
       SEFOS(config)# vlan 4

2. Enable static configuration of multicast router ports.

       SEFOS(config-vlan)# ip igmp snooping mrouter extreme-ethernet 0/8
       SEFOS(config-vlan)# ip igmp snooping mrouter extreme-ethernet 0/9
       SEFOS(config)# end

3. Review the configuration.

       SEFOS# show ip igmp snooping mrouter

       Vlan   Ports
       -----  ------
       1. Ex0/8(static), Ex0/9(static)

4. Send a query message on port 2, and review the configuration in switch A.

       SEFOS# show ip igmp snooping mrouter

       Vlan   Ports
       -----  ------
           1  Ex0/1(dynamic)
       Ex0/8(static), Ex0/9(static)

   Router ports are learned on reception of PIM or OSPF messages from a router.

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