GCP partner interconnect configuration

Question

I'll have the following..

• 2 share vpcs (prod/non-prod)
• custom subnets in only 2 regions in each svpc

I'll have 4 circuits from my partner provider 2 for each region...how many vlan attachments should I have or do I need more circuits from the partner provider to set up partner interconnect.

Answer 1

For the highest level availability, Google recommends the 99.99% availability configuration.

99.99% availability requires at least four VLAN attachments across two metros (one in each edge availability domain). You also need four Cloud Routers (two in each GCP region of a VPC network). Associate one Cloud Router with each VLAN attachment. You must also enable global routing for the VPC network. For more information about layer 2&3 connections please refer to documentation 1 and see the example configurations.

For how to establish 99.99 & 99.9 % Availability for Partner Interconnect please refer to Tutorial 2 & 3.