Skip to content

Network High Availability

  • By creating subnets in the available AZs, you create multi-AZ presence for your VPC
  • Best practice is to create at least two VPN tunnels into your Virtual Private Gateway
  • Direct Connect is not HA by default, you need to create a second connection to another location or use VPN
  • Route 53 can be used to route traffic to healthy instances
  • For multi-AZ redundancy or NAT Gateways, create gateways in each AZ with routes for private subnets to use the local gateway