Use Limits

Last updated: 2020-03-19 12:02:03

    Connection limitations

    Note the following when you use a peering connection:

    • To enable real communication between both ends of a peering connection, you must configure routing rules in the route tables of both the sending and receiving ends.
    • The fee for a cross-region peering connection is paid by the requester of the connection.
    • If the acceptor does not accept a peering connection request, the request will automatically expire after 7 days.
    • Do not accept peering connection requests from unknown accounts because they may pose risks to your network.
    • The VPC CIDR blocks on both ends of a peering connection cannot overlap. Otherwise, an error will occur when the connection is connected.
    • For a cross-region peering connection, the CIDR blocks of multiple peer networks of one VPC cannot overlap. Otherwise, an error will occur.
    • Either end of a peering connection can interrupt the connection. Then, traffic between the two VPCs is disconnected immediately.
    • There is no bandwidth cap for an intra-region peering connection, and a bandwidth cap must be set for a cross-region peering connection.

    Resource limitations

    Resource Limitation Description
    Bandwidth cap for a cross-region peering connection 1 Gbps The bandwidth cap for an intra-region peering connection is 5 Gbps.
    If you need higher bandwidth, please submit a ticket.
    Max number of peering connections supported by each VPC 10 -

    For more information, see other service limitations on a VPC.