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For non-critical applications that can tolerate some downtime, Google recommends
that you use the 99.9% availability configuration. To be covered under the
non-critical applications SLA (99.9% monthly uptime
percentage), you must build your network according to this topology. The 99.9%
availability configuration requires two Cloud Interconnect connections
and two VLAN Attachments in a single Google Cloud region.
You can achieve a 99.9% availability configuration with
Dedicated Interconnect or Partner Interconnect by
using the following documents:
To help you achieve a 99.9% availability configuration, we recommend that you
use interconnect connection groups. These groups provide you with information
about whether your configuration meets the requirements for your intended level
of availability. For more information about interconnect connection groups, see
Resiliency and SLA options.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-29 UTC."],[],[],null,["# Topology for non-critical applications overview\n\nFor non-critical applications that can tolerate some downtime, Google recommends\nthat you use the 99.9% availability configuration. To be covered under the\nnon-critical applications [SLA](/network-connectivity/docs/interconnect/sla) (99.9% monthly uptime\npercentage), you must build your network according to this topology. The 99.9%\navailability configuration requires two Cloud Interconnect connections\nand two VLAN Attachments in a single Google Cloud region.\n\nYou can achieve a 99.9% availability configuration with\nDedicated Interconnect or Partner Interconnect by\nusing the following documents:\n\n- [Establish 99.9% availability for Dedicated Interconnect](/network-connectivity/docs/interconnect/tutorials/dedicated-creating-999-availability)\n- [Establish 99.9% availability for Partner Interconnect](/network-connectivity/docs/interconnect/tutorials/partner-creating-999-availability)\n\nTo help you achieve a 99.9% availability configuration, we recommend that you\nuse interconnect connection groups. These groups provide you with information\nabout whether your configuration meets the requirements for your intended level\nof availability. For more information about interconnect connection groups, see\n[Resiliency and SLA options](/network-connectivity/docs/interconnect/concepts/overview#sla-options)."]]
