Cloud Interconnect provides low latency, highly available connections that enable you to reliably transfer data between your on-premises and VPC networks. Also, Cloud Interconnect connections provide RFC 1918 communication, which means internal (private) IP addresses are directly accessible from both networks.
Cloud Interconnect offers two options for extending your on-premises network. Google Cloud Interconnect - Dedicated (Dedicated Interconnect) provides a direct physical connection between your on-premises network and Google’s network. Google Cloud Interconnect - Partner (Partner Interconnect) provides connectivity between your on-premises and GCP VPC networks through a supported service provider.
Benefits of cloud interconnect
Benefits of Cloud Interconnect
Traffic between your on-premises network and your VPC network doesn't traverse the public Internet. Traffic traverses a dedicated connection or through a service provider with a dedicated connection. By bypassing the public Internet, your traffic takes fewer hops, so there are less points of failure where your traffic might get dropped or disrupted.
Your VPC network's internal (RFC 1918) IP addresses are directly accessible from your on-premises network. You don't need to use a NAT device or VPN tunnel to reach internal IP addresses. Currently, you can't use Cloud Interconnect to access external (non-RFC 1918) IP addresses; instead, you must use a separate connection, such as Carrier Peering.
You can scale your connection to Google based on your needs. For Dedicated Interconnect, connection capacity is delivered over one or more 10 Gbps Ethernet connections, with a maximum of eight connections (80 Gbps total per interconnect). For Partner Interconnect, connection capacity for each VLAN can range from 50 Mbps to 10 Gbps.
The cost of egress traffic from your VPC network to your on-premises network is reduced. Cloud Interconnect is generally the least expensive method if you have a high-volume of traffic to and from Google’s network.
Considerations
If you don't require the low latency and high availability of Cloud Interconnect, consider using Cloud VPN to set up IPsec VPN tunnels between your networks. IPsec VPN tunnels encrypt data by using industry standard IPsec protocols as traffic traverses the public Internet.
An IPsec VPN tunnel doesn't require the overhead or costs that are associated with a direct, private connection. Cloud VPN only requires a VPN device in your on-premises network.
References:
https://cloud.google.com/interconnect/docs/concepts/overview
Cloud Interconnect offers two options for extending your on-premises network. Google Cloud Interconnect - Dedicated (Dedicated Interconnect) provides a direct physical connection between your on-premises network and Google’s network. Google Cloud Interconnect - Partner (Partner Interconnect) provides connectivity between your on-premises and GCP VPC networks through a supported service provider.
Benefits of cloud interconnect
Benefits of Cloud Interconnect
Traffic between your on-premises network and your VPC network doesn't traverse the public Internet. Traffic traverses a dedicated connection or through a service provider with a dedicated connection. By bypassing the public Internet, your traffic takes fewer hops, so there are less points of failure where your traffic might get dropped or disrupted.
Your VPC network's internal (RFC 1918) IP addresses are directly accessible from your on-premises network. You don't need to use a NAT device or VPN tunnel to reach internal IP addresses. Currently, you can't use Cloud Interconnect to access external (non-RFC 1918) IP addresses; instead, you must use a separate connection, such as Carrier Peering.
You can scale your connection to Google based on your needs. For Dedicated Interconnect, connection capacity is delivered over one or more 10 Gbps Ethernet connections, with a maximum of eight connections (80 Gbps total per interconnect). For Partner Interconnect, connection capacity for each VLAN can range from 50 Mbps to 10 Gbps.
The cost of egress traffic from your VPC network to your on-premises network is reduced. Cloud Interconnect is generally the least expensive method if you have a high-volume of traffic to and from Google’s network.
Considerations
If you don't require the low latency and high availability of Cloud Interconnect, consider using Cloud VPN to set up IPsec VPN tunnels between your networks. IPsec VPN tunnels encrypt data by using industry standard IPsec protocols as traffic traverses the public Internet.
An IPsec VPN tunnel doesn't require the overhead or costs that are associated with a direct, private connection. Cloud VPN only requires a VPN device in your on-premises network.
References:
https://cloud.google.com/interconnect/docs/concepts/overview
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