Enables you to choose the lookup-key for multicast forwarding.
group-vlan | Specifies that IP multicast forwarding database entries are programmed as (*,GroupIP,VlanId). |
source-group-vlan | Specifies that IP multicast forwarding database entries are programmed as (SourceIP, GroupIP, VlanId). (Default). |
mac-vlan | Specifies that IP multicast forwarding database entries are programmed as (Mac, VlanId). |
mixed-mode | Specifies that IP multicast forwarding database entries are programmed as follows: L3 cache entries (PIM/MVR/PVLAN) use source-group-vlan; L2 cache entries (IGMP (Internet Group Management Protocol)/MLD/PIM snooping) use mac-vlan. |
source-group-vlan.
Use this command to choose the lookup-key for multicast forwarding. The following restrictions apply to this command:
Similarly, enabling the above two features are disallowed,when the ipmc lookup-key is mac-vlan. The following warning message is displayed when the mac-valn option is specified:
Warning: Usage of multicast IP addresses that could result in overlapping MAC addresses should be avoided. Example: Using 225.1.1.1, 226.1.1.1 and 225.129.1.1 should be avoided. Either one of the addresses could be used. Using multicast with PVLAN should be avoided with this forwarding option.
Warning: Usage of multicast IP addresses that could result in overlapping MAC addresses should be avoided for snooping (IGMP/MLD/PIM snooping) controlled traffic.Example: Using 225.1.1.1, 226.1.1.1 and 225.129.1.1 should be avoided. Either one of the addresses could be used.
The following command specifies that IP multicast forwarding database entries are programmed as (*,GroupIP,VlanId):
configure forwarding ipmc lookup-key group-vlan
To display the ipmc lookup-key configuration, enter the command:
show forwarding configuration
This command was first available in ExtremeXOS 15.3.
This command is available on all Summit family switches.