Requirements:
CIDR Block (ours or theirs)
AWS Account ID
VPC ID
CIDR Block
For Existing Accounts:
Enterprise will provide you with the currently used CIDR Block.
If you have a conflict with that CIDR block
You'll need to provide a new CIDR Block (See "New Accounts")
Enterprise will create a new VPC
If you don't have a conflict:
You can proceed to Direct Connect into the Enterprise Managed CDIR Block
For New Accounts:
Provide Enterprise with a CIDR Block space
Standard Deployments: /22
1022
Large Deployments (): /16
65,534
Enterprise will create a new VPC
Account/VPC
You will also need to provide the following details to send the peering request:
AWS Account ID
VPC ID