Question

Explain AWS Transit Gateway.

Answer 1

AWS Transit Gateway is a service that simplifies network connectivity by acting as a hub for connecting multiple VPCs, VPNs, and Direct Connect gateways. It allows for central management of network traffic across various AWS resources.

Example Code: Creating a Transit Gateway with AWS SDK for JavaScript (Node.js):

var params = {
  Description: 'MyTransitGateway',
  Options: {
    AmazonSideAsn: 64512,
    AutoAcceptSharedAttachments: 'disable',
    DefaultRouteTableAssociation: 'enable',
    DefaultRouteTablePropagation: 'enable'
  },
  TagSpecifications: [
    {
      ResourceType: 'transit-gateway',
      Tags: [
        {
          Key: 'Name',
          Value: 'MyTransitGateway'
        }
      ]
    }
  ]
};
ec2.createTransitGateway(params, function(err, data) {
  if (err) console.log(err, err.stack);
  else     console.log(data);
});