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PhaseStageTimeframeStatusActivityImpact on Cornell AWS Account VPC Networks
Preparation

Data CollectionNovember 2022(tick)
  • Gather information about Direct Connect resources and connected VPCs in Cornell AWS accounts
none
Resource Tagging

 

(tick)
  • Add tags to existing resources in customer accounts to assist with targeting, identification, status, intended disposition
none
Resource Groups(tick)
  • Create Transit Gateway in CIT AWS account
  • Create Resource Groups for resources involved in the migration in customer accounts
none
Customer Input #1

-  

(tick)
  • Cornell AWS account owner/admin review
  • Cornell AWS account owner/admin feedback solicited
none
Migration

Transit Gateway Attachments

-  

(tick)
  • Utility Subnets
  • Transit Gateway Attachments created in customer accounts
  • v2 Route Tables created in customer accounts
  • NACLs for Utility Subnets
none
Customer Input #2

-  

(tick)
  • Cornell AWS account owner/admin review
  • Cornell AWS account owner/admin feedback solicited
  • Route Table and/or TGW Attachments adjusted according to customer input
none
v2 BGP Updated

7am

(tick)
  • v2 Direct Connect infrastructure will have BGP configuration changed to begin advertising new routes via I2CC
Azure-to-AWS-VPC traffic may begin to use the v2 architecture (in just the one direction). This is limited only to Azure-to-AWS-VPC traffic due to Cornell's network architecture. 
VPC Routing Updated

9am

(tick)
  • v2 Route Tables activated
  • v1 Route Tables deactivated
  • VPC-to-campus traffic will be routed through the v2 architecture
  • Azure-to-AWS-VPC traffic may use the v2 architecture.
Campus Direct Connect Routes Updated

9am

(tick)
  • Direct Connect Virtual Interfaces in customer accounts will be disabled. This causes  DC traffic to begin using the v2 architecture for campus-to-AWS traffic
  • campus-to-VPC traffic will be routed through the V2 architecture
  • all Azure-to-AWS-VPC traffic will be routed through the v2 architecture
CleanupCustomer Account Cleanup

-  

(tick) 
  • VGWs and DC VIFs in customer accounts deleted
none
Campus Direct Connect Cleanup(tick)
  • Campus Direct Connect resources deleted or decommissioned
none

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