Site-to-site VPN

  • Connects a VPC with on-prem subnets
  • VGW -> CGW, has HA by default
  • Works for 1.25 Gbps
  • Costs per each Gb out/in
  • Considered as backup of Direct Connect, means, not stable

Accelerated site to site

  • 2 IPSec
  • Global accleration underneath
  • Can be used only if TWG is used


  • AS / ASN
  • It is a routing protocol
  • BGP vs eBGP

Global Accelerator

  • Anycast ip addresses
  • Less routers hops to reach AWS Network
  • Works with TCP and UDP
  • At Network Level (OSI)