Cloud Interconnect provides two options for extending your on-premises network to your Google Cloud Platform (GCP) Virtual Private Cloud (VPC) networks. You can create a dedicated connection (Dedicated Interconnect) or use a service provider (Partner Interconnect) to connect to VPC networks. When choosing an interconnect type, consider your connection requirements, such as the connection location and capacity.
For users with high bandwidth needs, Dedicated Interconnect can be a cost-effective solution. If you don't require 10 Gbps connections, Partner Interconnect provides a variety of capacity options. Also, for users that can't physically meet Google's network in a colocation facility, you can use Partner Interconnect to connect to a variety of service providers to reach your VPC networks.
The following table highlights the key differences between Dedicated and Partner Interconnect.
|Dedicated Interconnect||Partner Interconnect|
|Features||High bandwidth connections with a minimum of 10 Gbps. Traffic flows directly between networks, not through the public Internet.||Flexible capacity options with a minimum of 50 Mbps. More points of connectivity through one of our supported service providers. Traffic between networks flows through a service provider, not through the public Internet.|
|Set up||Requires routing equipment in a colocation facility that supports the regions that you want to connect to.||Use any supported service provider to connect to Google.|
|BGP configuration||You must configure BGP on your on-premises routers and Cloud Routers.||For layer 2 connections, you must configure BGP on your on-premises routers and Cloud Routers. For layer 3 connections, the configuration of your Cloud Routers and their peers are fully automated.|
|SLA||Google provides an end-to-end SLA for the connection.||Google provides an SLA for the connection between Google and service provider. Whether an end-to-end SLA for the connection is offered, depends on your service provider. Check with them for more information.|
|Pricing||$1,700 a month for each 10 Gbps circuit. $72 a month for each VLAN attachment. Charges also apply to egress traffic from your VPC network to your on-premises network. See the Pricing page for more information.||$39-$1,700 per VLAN attachment, depending on its capacity, plus charges from your service provider to reach Google. Charges also apply to egress traffic from your VPC network to your on-premises network. See the Pricing page for more information.|
Dedicated Interconnect summary
- Scale to meet the most demanding data needs. Connection capacity is delivered over one or more 10 Gbps Ethernet circuits, with a maximum of eight circuits (80 Gbps maximum per Dedicated Interconnect connection). If your traffic doesn't require that level of capacity, consider Cloud VPN or Partner Interconnect.
- Google offers end-to-end SLA for the connectivity between your VPC and on-premises networks for Google-defined topologies.
- The connection between your network and Google's network is not encrypted. If you require additional data security, use application-level encryption or your own VPN. Currently, you can't use Google Cloud VPN in combination with Dedicated Interconnect, but you can use your own VPN solution.
Partner Interconnect summary
- Connect to supported service providers, who provide more points of connectivity compared to the colocation facilities available for Dedicated Interconnect.
- Partner Interconnect offers more options for connection capacity, starting at 50 Mbps and up to 10 Gbps per VLAN attachment.
- Compared to Dedicated Interconnect, you don't need to install and maintain routing equipment in a colocation facility.
- You must work with a supported service provider. If your service provider isn't supported or if you don't want to pass traffic through a service provider, consider Cloud VPN or Dedicated Interconnect.
- Your service provider might provide an end-to-end SLA, based on the Google-defined topologies. For more information, contact your service provider.
- Increases in the number of VLAN attachments or increasing the capacity of an existing attachment depends on your service provider's available capacity.
- Google bills you based on your VLAN attachment's capacity and egress traffic. This doesn't include additional charges by your service provider, who might charge you to carry data across their network.
- The connection between your network and Google's network is not encrypted. If you require additional data security, use application-level encryption or your own VPN. Currently, you can't use Google Cloud VPN in combination with Partner Interconnect, but you can use your own VPN solution.