Changing the setup
If you have set up a MediaLive channel for VPC delivery, note the following:
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You can't change an existing channel to either start delivering via your VPC or stop delivering via your VPC.
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You can't change the channel class on an existing channel that is set up for delivery via your VPC.
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If you add another input that uses your VPC, make sure that it follows the already established rules for VPCs, subnets, and Availability Zones.
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If you delete the channel or if you delete all the output groups, MediaLive deletes the elastic interface points that it created in your Amazon EC2 instance.