Cloud Interconnect

Options to connect your infrastructure to Google Cloud Platform (GCP)

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Choosing a network connection option

Different applications and workloads require different network connectivity solutions. Google supports multiple ways to connect your infrastructure to Google Cloud Platform.

Interconnect Peering
Direct access to RFC1918 IPs in your VPC – with SLA Access to Google public IPs only – without SLA
Includes:
  • Dedicated Interconnect
  • IPsec VPN
  • Includes:
  • Direct Peering
  • Carrier Peering
  • Interconnect Options

    Dedicated Interconnect

    If you would like to extend your data center network into their Google Cloud projects, Dedicated Interconnect offers enterprise-grade connections to GCP. This solution allows you to directly connect your on-premises network to your GCP VPC. You must meet Google at one of our peering locations.

    Useful for hybrid environments, to extend your corporate data center’s IP space into the Google cloud, or for high-bandwidth traffic (greater than 2Gbps), for example when transferring large data sets.

    Dedicated Interconnect can be configured to offer a 99.9% or a 99.99% uptime SLA. Please see the Dedicated Interconnect documentation for details on how to achieve these SLAs.

    IPsec VPN

    Google Cloud VPN securely connects your on-premises network to your GCP Virtual Private Cloud (VPC) network through an IPsec VPN connection. Traffic traveling between the two networks is encrypted by one VPN gateway, then decrypted by the other VPN gateway. This protects your data as it travels over the Internet.

    Useful to connect to your VPC over the public internet for low volume data connections.

    Peering Connection Options

    Direct Peering

    If you require access to Google and Google Cloud properties and can satisfy Google’s peering requirements, Direct Peering is the solution. Direct peering does not have an SLA.

    Useful to connect directly to Google, and to save up to 67% on egress fees compared to VPN or public access over the Internet.

    Carrier Peering

    If you require access to Google public infrastructure and cannot satisfy Google’s peering requirements, you can connect via a Carrier Peering partner. Carrier Peering does not have an SLA.

    Useful if you like the benefits of Direct Peering, but are unable to meet the peering requirements without a partner.

    Here is a side by side comparison of the Interconnect options.

    Connection Access Type Capacity Cost Other Considerations
    Dedicated Interconnect
    Dedicated, direct connection to VPC networks Internal IP addresses in RFC 1918 addresss space 10 Gbps for each link Reduced egress costs, fee for each link and VLAN Requires you to have a connection in a Google supported colocation facility, either directly or through a carrier
    IPsec VPN tunnel
    Encrypted tunnel to VPC networks through the public Internet Internal IP addresses in RFC 1918 address space 1.5-3 Gbps for each tunnel Egress is billed the same as general network pricing, fee for each tunnel Requires a VPN device on your on-premises network

    Here is a side by side comparison of the Peering options.

    Connection Access Type Capacity Cost Other Considerations
    Direct Peering
    Dedicated, direct connection to Google's network Public IP addresses 10 Gbps for each link Settlement free peering, reduced cost for egress Requires you to have a connection in a colocation facility, either directly or through a carrier provided wave service
    Carrier Peering
    Peering through service provider to Google’s public network (list of partners) Public IP Addresses Varies based on partner offering Cost based on partner offering, reduced cost for egress Requirements vary by partner

    Dedicated Interconnect Pricing

    Resource Price
    Interconnect $1,700 a month per 10 Gbps link
    VLAN attachment $72 a month per attachment

    Egress traffic from a VPC network through an interconnect:

    Region Price
    Asia (asia-east1, asia-northeast1, asia-southeast1) $0.042 per GB
    Europe (europe-west1, europe-west2, europe-west3) $0.02 per GB
    NA (us-central1, us-east1, us-east4, us-west1, us-west2) $0.02 per GB
    Australia (austrailia-southeast1) $0.042 per GB

    Learn more at the Dedicated Interconnect pricing page.

    Direct Peering Pricing

    Google does not charge for peering. Establishing a direct peering connection with Google is free. There is no ongoing cost per port or fractional port involved, and no per hour charges.

    Google Cloud Platform traffic egressing direct peering connections within a geolocation is billed at the rate listed in the table below. Traffic within a geolocation will be billed at standard Google Cloud Platform rates for traffic egress to the Internet.

    Traffic from Google services that is not part of Google Cloud Platform is free of charge.

    Carrier Peering Pricing

    Google does not charge for Carrier peering, however your service provider may charge for their services. Please consult with your Carrier Peering service provider for details on their specific offering.

    Google Cloud Platform traffic egressing Carrier Peering connections within a geolocation is billed at the rate listed below. Pricing is applicable for traffic within a region. Interregional traffic will be billed at standard Google Cloud Platform rates for traffic egressed to the Internet.

    Traffic from Google services (e.g. G Suite) that is not part of Google Cloud Platform is free of charge.

    Pricing Ingress Intra-Region Google Cloud Platform Traffic Egress
    Direct Peering Free for all regions. NA: $0.04/GB
    EU: $0.05/GB
    APAC: $0.06/GB
    Carrier Peering Free for all regions. NA: $0.04/GB
    EU: $0.05/GB
    APAC: $0.06/GB

    “ Accessing GCP with high bandwidth, low latency, and consistent network connectivity is critical for our business objectives. Google's Dedicated Interconnect allows us to successfully achieve higher reliability, higher throughput, and lower latency while reducing the total cost of ownership by more than 60%, compared to solutions over the public internet. ”

    —Nhan Phan, VP of Engineering at Metamarkets

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