Establishing network connectivity between two or more cloud networks and on-prem resources (VPC Stitching)
Warning
This function will only be available if Cloud Interconnect is activated.
Reserved on-prem connection via two private Cloud Interconnect connections to one RI with two or more cloud networks and network connectivity between the cloud networks. This fully-connected topology is called Full Mesh.
The scenario uses the following components:
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On-Premclient with two local subnets:subnet-c1andsubnet-c2. -
The
On-Premnetwork hardware connects to the Yandex Cloud network hardware via Cloud Interconnect. -
Two private connections,
prc-m9andprc-nord, established via two points of presence,M9andNORD, connect to theRouting Instancein Yandex Cloud. -
From the Yandex Cloud side, these two virtual networks connect to the
Routing Instance:Net-1comprised of three subnets:subnet-a1,subnet-b1, andsubnet-d1.Net-2comprised of three subnets:subnet-a2,subnet-b2, andsubnet-d2.
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To achieve network connectivity between virtual networks
Net-1andNet-2for theprc-m9andprc-nordprivate connections, you need to configure stitching announcements for the CIDRs of the corresponding subnets in virtual networksNet-1andNet-2.
Important note
Using the actual subnet prefixes of the virtual networks as stitching announcements is not permitted.
This topology enables network connectivity between:
On-Premsubnets and VPCNet-1subnets.On-Premsubnets and VPCNet-2subnets.- VPC
Net-1andNet-2subnets.
Note
In case of failure of any of the private connections above, all network traffic will be automatically switched over to the remaining private connection.