Direct Connect
Direct Connect
Direct Connect
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What's New
Product announcements
Overview
Getting Started
Interconnecting on-premises data centers and VPCs
User Guide
DC Connection
Dedicated Line
DC Gateway
DX Gateway
Virtual Interface
Outbound traffic package
Health check
Line health check
Monitoring and alerts
QoS Management
Identity and Access Management
Projects and Tags
Best Practices
On-premises to Cloud migration
Single-line access
Dual-line access
Interconnection between IDCs
Cloud data interconnection
On-premises IDC reference configuration
API Reference
DC Connection
DC Gateway
DC Virtual Interface
Health check
Qos policy
BGP Peer
DC Gateway route
Failure drill
Tag
Troubleshooting
- Documentation
Direct ConnectOverviewFeatures
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Features
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Direct Connect (DC) provides a dedicated connectivity channel between your on-premises data center and a Virtual Private Cloud (VPC).
Category | Feature | Capabilities |
DC Connection | Dedicated Line | A DC Connection with an exclusive VolcanoEngine port. Requires you to contact a line operator to implement a physical link from your data center to the VolcanoEngine access point. Learn more |
| Shared Line | This solution directly applies to line operators who have connected to VolcanoEngine access points without establishing a private connection to VolcanoEngine DC, sharing the line operator's DC Connection. Learn more |
DC Gateway | Gateway | The Direct Connect (DC) Gateway serves as an ingress for an on-premises data center to access the cloud, and connects a Virtual Private Cloud (VPC) with a DC Connection, enabling mutual access between the data center and the VPC. Learn more |
| Routes | Used to connect the network between an on-premises data center and a DC Gateway. Depending on the route type of a DC Virtual Interface (BGP route or static route), support configuring a BGP Peer or adding a static route entry. |
| Cross-account cloud-to-on-premises intercommunication | Add the Cloud Enterprise Network (CEN) cross-account authorization. Enables you to load the DC gateway under your account to another account's CEN, achieving private network intercommunication. Learn more |
| Custom ASN for DC Gateway | Customize the ASN for a DC Gateway, ensuring BGP route propagation between CENs in scenarios where multiple CENs interconnect via a DC. Learn more |
| Supports IPv6 | You can enable IPv6 after completing the creation of a Direct Connect (DC) Gateway. A DC Virtual Interface can use the IPv6 feature only after its associated DC Gateway has IPv6 enabled. Learn more |
Virtual Interface | DC Virtual Interface | |
| Shared Virtual Interface | Supports sharing a Virtual Interface across VolcanoEngine accounts. Enables multiple VolcanoEngine accounts to share one DC Connection, saving costs while enabling account-based resource management. Learn more |
Traffic package | Outbound traffic package | A prepaid traffic package provided by DC. After purchase, it automatically offsets the outbound traffic fee generated by your DC gateway, offering a more cost-effective solution compared to Pay-as-you-go. Learn more |
Health management | DC health check | When you transmit business data between cloud/on-premises VolcanoEngine and third-party clouds via a DC Connection, significant network fluctuations or unstable transmission links may occur. You can use the DC health check to detect network issues. Learn more |
| Line detection | In redundant line scenarios, you can configure corresponding line detection mechanisms based on the routing type used. These mechanisms periodically detect lines and determine whether to converge routes based on the detection results. Learn more |
| Failure drill tip The failure drill feature is in the beta stage. If you need a trial, please contact your account manager. | Simulate fault scenarios to test the reliability of networking on the cloud/premises. If you have new dedicated lines connected to the data center, you can verify the effectiveness of dedicated line redundancy through failure drills. This prevents potential faults from affecting your business. Learn more |
QoS management | Supports QoS policy and add traffic queue policy | The Quality of Service (QoS) Policy is a network traffic congestion management mechanism that provides different forwarding quality guarantees according to business priorities during network congestion. In the outbound direction (i.e., from a VPC to a data center), you can define different priorities for different DC Connections through the QoS policy to ensure that high-priority services receive the required bandwidth first, achieving smooth operation of critical services. Learn more |
Monitoring and maintenance | Monitor EIP resources | |
| Preset alarm template | Quickly set alarm strategies using preset alarm templates, improving configuration efficiency. Learn more |
Account and resource management | Access control | VolcanoEngine’s permission management system. It offers a free service to control access permissions for different identities on cloud resources, enabling decentralized resource management, improving efficiency, and reducing the risk of information leakage. Learn more |
| Project management | A resource management method. It allows you to group cloud resources used by different businesses or projects, helping maintain resource independence and data security. Learn more |
| Tag management | Used to identify resources. Add different tags to cloud resources of various types and purposes. Enables you to tag and categorize resources, and quickly find your target cloud resources with specific characteristics. Learn more |
Last updated: 2026.08.24 11:30:50
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