Vpc Peering Vs Transit Gateway

This will be a brief comparison of both architectures and a transit vpc vs transit gateway comparison to help you make the correct choice for your infrastructure.

Vpc peering vs transit gateway. In the previous scenario you had to use vpc peering or transit vpc concept to form. Lets look at an example in the below diagram our user located in vpc a wants to reach their server in vpc c. With vpc peering you will be limited by the route table you will not be able to get the route table limit increased past 100 any longer.

So in order to do this i need to have another vpc peering between vpc1 and vpc3. Vpc peering vs transit gateways if you have a vpc peering connection between vpc a and vpc b and one between vpc a and vpc c there is no vpc peering connection transitive peering between vpc b and vpc c. Vpc peering has no aggregate bandwidth.

In the traditional transit vpc implementation using cisco palo alto networks or juniper it is your responsibility to maintain and monitor each of the components. This means you cannot route packets directly from vpc b to vpc c through vpc a. Aws transit gateway is a service that allows virtual private clouds vpcs and on premises networks to be connected to a single centralized gateway there by get rid mesh of multiple end to end vpc.

Gateway transit is a peering property that lets one virtual network use the vpn gateway in the peered virtual network for cross premises or vnet to vnet connectivity. Vpc peering connections exist between vpc a and b and vpc b and c. Transit gateway on the other hand is a managed service.

For information about what regions support transit gateway peering attachments see aws transit gateways faqs. Transit gateway peering uses the same network infrastructure as vpc peering and is therefore encrypted. Ha is builtin and monitoring can be done using standard cloudwatch metrics.

Posted 04 4 2020 filed under amazon aws. Individual instance network performance limits and flow limits 10 gbps within a placement group and 5 gbps otherwise apply to both options. Only vpc peering supports placement groups.