If you have not already done so, review the available multicast domain attributes. For more information, see Multicast domains in Amazon VPC Transit Gateways.
To create a static multicast domain using the console
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Open the Amazon VPC console at https://console.aws.amazon.com/vpc/
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On the navigation pane, choose Transit Gateway Multicast.
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Choose Create transit gateway multicast domain.
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For Name tag, enter a name to identify the domain.
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For Transit gateway ID, choose the transit gateway that processes the multicast traffic.
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For IGMPv2 support, clear the checkbox.
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For Static sources support, select the checkbox.
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To automatically accept cross-account subnet associations for this multicast domain, select Auto accept shared associations.
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Choose Create transit gateway multicast domain.
To create a static multicast domain using the AWS CLI
Use the create-transit-gateway-multicast-domain
aws ec2 create-transit-gateway-multicast-domain --transit-gateway-id
tgw-0xexampleid12345
--options StaticSourcesSupport=enable,Igmpv2Support=disable