Is the Peering to be charged?

The Peering service is free of charge.

Why can't VPCs at the two ends communicate normally after a Peering is successfully established?

Please troubleshoot according to the following steps:

Check whether a Peering has been created between the two VPCs, mainly checking the VPC ID of the Peering.
Check whether the two VPCs of the Peering have been added to the peer route information.
Check whether the route information of the Peering is correct. When the network segments of the two VPCs overlap, the route of the peer subnet needs to be configured.
Check whether all the subnet segments of the two VPCs of the Peering overlap.
Check whether the ECSs at the two ends of the Peering that require interworking have opened security group rules, and whether the iptables or firewall of the ECSs has added restriction rules.
If the error “The route already exists" is reported when the route of a Peering is added, check whether the destination address of the peer connection already exist.
When the route destination addresses of the Peering overlaps, the routing may be voided.
If all the above issues have been resolved, please contact your Customer Service.

How many Peerings can each user apply for?

By default, a user can apply for up to 50 Peerings per resource pool. If it is not enough for you, you can submit a ticket to apply for increasing quota.

Can the network segments of two VPCs at both ends be the same when using a Peering?

When using a Peering, the network segments of two VPCs at both ends can't be the same.

What resources can both ends access mutually when a Peering is established to enable the interworking between two VPCs via Intranets?

All resources in two VPCs at both ends can be mutually accessed through a Peering.

Does a Peering support the interworking between two VPCs across tenants via the Intranets?

A Peering supports the interworking between two VPCs via the Intranets in the same region under the same tenant or different tenants.

Does a Peering support the interworking between two VPCs via the Intranets across regions?

A Peering does not support it, but Express Connect can work for the interworking between two VPCs via the Intranets across regions.

When using a Peering for communication, will the data pass through the Internet?

No. The data stream of a Peering will only be transmitted inside the data center rather than through the Internet. This could prevent your data from being intercepted during the transmission process, while the network quality is superior to that of the public network.

VPC Peering Connection

FAQs