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

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## Configure a Static Router Port

Multicast router ports can be configured statically, or they can be learned dynamically at run time. Use the instructions in this section to configure a router port statically. If you have questions about the topology used in this section, see Flow-Based Configuration Example. For the default settings, see Default Settings.

1. On DUT1, configure the multicast forwarding mode for IGS as MAC-based.

       SEFOS# configure terminal
       SEFOS(config)# snooping multicast-forwarding-mode mac

2. Disable GMRP.

       SEFOS(config)# set gmrp disable

3. Enable IGS.

       SEFOS(config)# ip igmp snooping

4. Configure `VLAN 2` in the switch.

       SEFOS(config)# vlan 2

5. Configure the static VLAN entry (`VLAN 2`) with the required ports.

       SEFOS(config-vlan)# ports extreme-ethernet 0/1-5

6. Configure the static router port as P1 for this VLAN.

       SEFOS(config-vlan)# ip igmp snooping mrouter extreme-ethernet 0/1
       SEFOS(config-vlan)# exit

7. Enter the Interface Configuration mode for Gigabit Ethernet interface `0/1`.

       SEFOS(config)# interface extreme-ethernet 0/1

8. Set the PVID as `VLAN 2`.

       SEFOS(config-if)# switchport pvid 2

9. Bring up the interface.

       SEFOS(config-if)# no shutdown
       SEFOS(config-if)# exit

10. Enter Interface Configuration mode for Gigabit Ethernet interface `0/2`.

        SEFOS(config)# interface extreme-ethernet 0/2

11. Set the PVID as `VLAN 2`.

        SEFOS(config-if)# switchport pvid 2

12. Bring up the interface.

        SEFOS(config-if)# no shutdown
        SEFOS(config-if)# exit

13. Enter Interface Configuration mode for Gigabit Ethernet interface `0/3`.

        SEFOS(config)# interface extreme-ethernet 0/3

14. Set the PVID as `VLAN 2`.

        SEFOS(config-if)# switchport pvid 2

15. Bring up the interface.

        SEFOS(config-if)# no shutdown
        SEFOS(config-if)# exit

16. Enter Interface Configuration mode for Gigabit Ethernet interface `0/4`.

        SEFOS(config)# interface extreme-ethernet 0/4

17. Set the PVID as `VLAN 2`.

        SEFOS(config-if)# switchport pvid 2

18. Bring up the interface.

        SEFOS(config-if)# no shutdown
        SEFOS(config-if)# end

19. Enter Interface Configuration mode for Gigabit Ethernet interface `0/5`.

        SEFOS(config)# interface extreme-ethernet 0/5

20. Set the PVID as `VLAN 2`.

        SEFOS(config-if)# switchport pvid 2

21. Bring up the interface.

        SEFOS(config-if)# no shutdown
        SEFOS(config-if)# end

22. Review the IGS-related configurations.

        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 disabled
        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

23. Review the multicast router information.

        SEFOS# show ip igmp snooping mrouter

        Vlan   Ports
        ------   -------
            2    Ex0/1(static)

24. Review the VLAN database information.

        SEFOS# show vlan id 2

        Vlan database-------------------Vlan ID                 : 2Member Ports            : Ex0/1, Ex0/2, Ex0/3, Ex0/4, Ex0/5Untagged Ports          : NoneForbidden Ports         : NoneName                    :Status                  : Permanent----------------------------------------------------

25. Send V2 join messages for group MG1 (`227.1.1.1`) from host A.
26. Review the forwarding database.

        SEFOS# show ip igmp snooping forwarding-database

        Vlan  MAC-Address          Ports ------  -------------------         --------    2    01:00:5e:01:01:01   Ex0/1, Ex0/2

27. Send multicast data packets for MG1 (`227.1.1.1`) from SRC B.

    The multicast data packet should be received only on host A and SRC A.

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