VPC Usage Guidelines
Getting Started with VPC
Before using VPC, you need to understand:
- Basic VPC concepts
- VPC, subnet, and route planning
- Common application scenarios
- VPC billing information
- You can create a VPC to set up an IPv4 private network on the cloud and use an EIP for communications with the Internet.
- You can create a VPC to set up a private network with both IPv4 and IPv6 CIDR blocks on the cloud. You can use an EIP and a shared bandwidth for communications with the Internet over both IPv4 and IPv6 networks.
Connecting VPCs
Huawei Cloud provides various services to connect VPCs for different size deployments and for different scenarios. You can use VPC peering connections, enterprise routers, cloud connections, VPN connections, and direct connections to connect VPCs in the same region, VPCs in different regions, or VPCs of different accounts.
- Using VPC peering connections or enterprise routers to connect VPCs in the same region
- Using cloud connections, VPN connections, or direct connections to connect VPCs in different regions
Connecting VPCs to the Public Network
By default, cloud resources in a VPC cannot access the Internet. You can use EIP, NAT Gateway, or ELB to allow the resources in VPCs to access or be accessed by the public network.
- Using an EIP to connect a single ECS to the public network
- Using an NAT gateway to allow multiple ECSs to share an EIP to access the public network
- Using a load balancer to distribute access traffic to multiple backend servers
Connecting VPCs to On-Premises Data Centers
If you have services deployed in both on-premises data centers and on the cloud, you can use VPN, Direct Connect, or Cloud Connect to connect VPCs and on-premises data centers.
- Using a direct connection or VPN connection to connect a single VPC to an on-premises data center
- Using a direct connection or VPN connection and peering connections or an enterprise router to connect VPCs in the same region to an on-premises data center
- Using a direct connection or VPN connection and cloud connection or a central network to connect VPCs in different regions to an on-premises data center
VPCs and Subnets
- What Are the Quotas of VPC Resources?
- How Do I Create a VPC with a Subnet?
- How Do I Extend a VPC CIDR Block Using a Secondary IPv4 CIDR Block?
- Can Subnets Communicate with Each Other?
- Why Can't I Delete My VPCs and Subnets?
VPC Billing
- How Are VPC Resources Billed?
- Why Is My VPC Still Being Billed After It Was Deleted?
- How Do I View VPC Bills?
Virtual IP Addresses
- What Are the Differences Between EIPs, Private IP Addresses, and Virtual IP Addresses?
- How Do I Bind a Virtual IP Address to an Instance or EIP?
Route Tables
- How Do I Configure Policy-based Routes for an ECS with Multiple Network Interfaces?
- Can a Route Table Span Multiple VPCs?
VPC Peering Connections
Network Troubleshooting
- Why Does Communication Fail Between Two ECSs in the Same VPC or Packet Loss Occur When They Communicate?
- Why Can't the Virtual IP Address Be Pinged After It Is Bound to an ECS's Network Interface?
- Why Is the Network Disconnected Between Servers Using a Virtual IP Address After an Active/Standby Switchover?
- Why Did Communication Fail Between VPCs That Were Connected by a VPC Peering Connection?
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