- What's New
- Function Overview
- Product Bulletin
- Service Overview
- Billing
- Getting Started
- User Guide
-
Best Practices
- Direct Connect Best Practices
- Connecting an On-Premises Data Center to a VPC over a Single Connection and Using Static Routing to Route Traffic
- Connecting an On-Premises Data Center to a VPC over a Single Connection and Using BGP Routing to Route Traffic
- Connecting an On-Premises Data Center to a VPC over Two Connections in Load Balancing Mode (Virtual Gateway)
- Connecting an On-Premises Data Center to a VPC over Two Connections in an Active/Standby Pair (Virtual Gateway)
- Connecting an On-Premises Data Center to Multiple VPCs that Do Not Need to Communicate with Each Other
- Connecting an On-Premises Data Center to Multiple VPCs in the Same Region Using Direct Connect and VPC Peering
- Using a Public NAT Gateway and Direct Connect to Accelerate Internet Access
- Allowing On-Premises Servers to Access Cloud Services Using Direct Connect and VPC Endpoint
-
API Reference
- Before You Start
- API Overview
- Calling APIs
-
API
- Connections
- Virtual Gateways
-
Virtual Interfaces
- Creating a Virtual Interface
- Querying the Virtual Interface List
- Querying Details About a Virtual Interface
- Updating a Virtual Interface
- Deleting a Virtual Interface
- Creating a Virtual Interface Peer
- Updating a Virtual Interface Peer
- Deleting a Virtual Interface Peer
- Performing a Virtual Interface Switchover Test
- Querying the List of Virtual Interface Switchover Test Records
- Tag Management
- Quota Management
- Global DC Gateways
- Peer Links
- Connect Gateways
- Global EIPs
- Global DC Gateway Route Tables
- Public Parameters
- Appendix
- SDK Reference
- Troubleshooting
-
FAQs
-
Popular Questions
- What Are the Network Requirements for Connections?
- What Locations Are Available for Direct Connect?
- How Do I Select a Carrier When Purchasing a Connection?
- How Will I Be Billed for Direct Connect?
- How Do I Submit a Service Ticket?
- How Do I Test the Network Connectivity Between a Location and the Cloud?
- What Do I Do If I Select the Wrong Carrier When Creating a Connection?
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Product Consultation
- What Are the Network Requirements for Connections?
- What Are 1GE and 10GE?
- What Locations Are Available for Direct Connect?
- Is BGP Routing Supported in Direct Connect?
- What Is Full-Service Installation Statement?
- How Do I Submit a Service Ticket?
- What Are the Network Latency and Packet Loss Rate of a Connection?
- Are the Uplink and Downlink Bandwidths of a Direct Connect Connection the Same?
- What Do I Do If I Select the Wrong Carrier When Creating a Connection?
- How Do I Plan the VPCs for a New Connection?
- What Are Local and Remote Gateways (Interconnection IP Addresses)?
- How Do I Configure BFD for a Connection?
- Leased Line
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Interconnection with the Cloud
- Can I Access the Same VPC over Multiple Connections?
- How Do I Plan the CIDR Blocks for a Connection?
- What Should I Consider When I Use Direct Connect to Access the Cloud?
- Does Direct Connect Support NAT?
- Can the VLAN of the On-premises Network Be Used in the VPC Through Direct Connect?
- Can My On-Premises Data Center Access Multiple VPCs Through One Connection?
- Can Direct Connect Be Used with Similar Services of Other Cloud Service Providers?
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Networking and Scenarios
- Can Multiple Connections Access the Same VPC?
- Can My On-Premises Data Center Access Multiple VPCs Through One Connection?
- Can Direct Connect Be Used with Similar Services of Other Cloud Service Providers?
- Can I Limit the Bandwidth Available on Each Hosted Connection?
- How Do I Plan the VPCs for a New Connection?
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Related Console Operations
- How Do I Submit a Service Ticket?
- How Can I Unsubscribe from Direct Connect?
- What Parameters Can Be Modified After I Have Created a Virtual Interface?
- Do I Need to Delete the Virtual Gateway and Virtual Interface Before Deleting a Hosted Connection?
- How Do I Change the Routing Mode of a Connection?
- How Do I Delete a Hosted Connection?
- What Is the BGP ASN Used by Huawei Cloud?
- What Are Local and Remote Gateways (Interconnection IP Addresses)?
- Troubleshooting
- Billing
- Resource Monitoring
- Quota
-
Popular Questions
-
More Documents
- User Guide (ME-Abu Dhabi Region)
- User Guide (Paris Region)
- eu-west-0-api
- User Guide (Kuala Lumpur Region)
-
API Reference (Kuala Lumpur Region)
- Before You Start
- API Overview
- Calling APIs
- API Usage
-
API
- Connection
- Virtual Gateway
-
Virtual Interface
- Querying Details About a Virtual Interface
- Updating a Virtual Interface
- Deleting a Virtual Interface
- Querying the Virtual Interface List
- Creating a Virtual Interface
- Updating a Virtual Interface Peer
- Deleting a Virtual Interface Peer
- Creating a Virtual Interface Peer
- Performing a Virtual Interface Switchover Test
- Querying the Switchover Test Records of a Virtual Interface
- Tag management
- Quota Management
- Public Parameters
- Appendixes
- Change History
- General Reference
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Region and AZ
Concept
A region and availability zone (AZ) identify the location of a data center. You can create resources in a specific region and AZ.
- Regions are divided based on geographical location and network latency. Public services, such as Elastic Cloud Server (ECS), Elastic Volume Service (EVS), Object Storage Service (OBS), Virtual Private Cloud (VPC), Elastic IP (EIP), and Image Management Service (IMS), are shared within the same region. Regions are classified into universal regions and dedicated regions. A universal region provides universal cloud services for common tenants. A dedicated region provides specific services for specific tenants.
- An AZ contains one or more physical data centers. Each AZ has independent cooling, fire extinguishing, moisture-proof, and electricity facilities. Within an AZ, computing, network, storage, and other resources are logically divided into multiple clusters.
Figure 1 shows the relationship between regions and AZs.
Huawei Cloud provides services in many regions around the world. You can select a region and an AZ based on requirements. For more information, see Huawei Cloud Global Regions.
Selecting a Region
When selecting a region, consider the following factors:
- Location
It is recommended that you select the closest region for lower network latency and quick access.
- If your target users are in Asia Pacific (excluding the Chinese mainland), select the CN-Hong Kong, AP-Bangkok, or AP-Singapore region.
- If your target users are in Africa, select the AF-Johannesburg region.
- If your target users are in Latin America, select the LA-Santiago region.
NOTE:
The LA-Santiago region is located in Chile.
- Resource price
Resource prices may vary in different regions. For details, see Product Pricing Details.
Selecting an AZ
When deploying resources, consider your applications' requirements on disaster recovery (DR) and network latency.
- For high DR capability, deploy resources in different AZs within the same region.
- For lower network latency, deploy resources in the same AZ.
Regions and Endpoints
Before you use an API to call resources, specify its region and endpoint. For more details, see Regions and Endpoints.
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