Configure IP Multicast over Fabric Connect on a VLAN Within the GRT

Before you begin

Configure the required SPBM and IS-IS infrastructure, which includes the creation of SPBM B-VLANs.
Create the C-VLANs and add slots/ports.
Enable IP Multicast over Fabric Connect globally.
If no IP interface exists on the VLAN, create one. The IP interface must be the same subnet as the IGMP hosts that connect to the VLAN.

About this task

Use this procedure to configure IP Multicast over Fabric Connect within the GRT. The default is disabled.

You cannot enable IP PIM when IP Multicast over Fabric Connect is enabled on the VLAN.

The switch only supports IPv4 addresses with IP Multicast over Fabric Connect.

Procedure

Enter VLAN Interface Configuration mode:

enable

configure terminal

interface vlan <1–4059>
Create an IP interface on the VLAN:

ip address <A.B.C.D/X>
Enable IP Multicast over Fabric Connect:

ip spb-multicast enable

Note

After you configure ip spb-multicast enable, you cannot enable IGMP, IGMP Snooping, or IGMP proxy on the interface. If you try to enable IGMP Snooping or proxy on any interface where IP Multicast over Fabric Connect is enabled, an error message displays.

When you configure ip spb-multicast enable on the Controller node of a DvR domain, the configuration is automatically pushed to the Leaf nodes within the domain.
Ensure IP Multicast over Fabric Connect within the GRT is configured properly:

show ip igmp interface

If routed-spb displays under MODE, IP Multicast over Fabric Connect within the GRT is properly enabled on the VLAN.

Example

Enable IP Multicast over Fabric Connect within the GRT:

Switch:1>enable
Switch:1#configure terminal
Switch:1(config)#interface vlan 500
Switch:1(config-if)#ip address 192.0.2.1 255.255.255.0
Switch:1(config-if)#ip spb-multicast enable

Switch:1#show ip igmp interface

=========================================================================================
                         Igmp Interface - GlobalRouter
=========================================================================================
       QUERY              OPER            QUERY   WRONG              LASTMEM
IF     INTVL STATUS VERS. VERS QUERIER    MAXRSPT QUERY JOINS ROBUST QUERY   MODE   L2ISID SCOPE 
                                                                                           ISID
-------------------------------------------------------------------------------------------------
V500   125    active 2     2   0.0.0.0    100     0     0     2      10    routed-spb
V2000  125    inact  2     2   0.0.0.0    100     0     0     2      10  

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