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Huawei Cloud Computing Technologies Co., Ltd.

Address:

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Website:

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Issue 01 (2026-02-27)

Direct Connect Service Overview

Contents

1 What Is Direct Connect?........................................................................................................ 1

2 Product Advantages................................................................................................................ 3

3 Application Scenarios............................................................................................................. 4

4 Functions................................................................................................................................... 6

5 Direct Connect Locations.....................................................................................................10

6 Security.................................................................................................................................... 15 6.1 Identity Authentication and Access Control................................................................................................................ 15

6.2 Auditing and Logging.......................................................................................................................................................... 16

6.3 Monitoring Security Risks.................................................................................................................................................. 16

6.4 Certificates...............................................................................................................................................................................16

7 Permissions............................................................................................................................. 18

8 Notes and Constraints.......................................................................................................... 26

9 Direct Connect and Other Services................................................................................... 29

10 Basic Concepts..................................................................................................................... 31

11 Region and AZ......................................................................................................................34

Issue 01 (2026-02-27)

Direct Connect Service Overview

1 What Is Direct Connect?

Direct Connect allows you to establish a stable, high-speed, low-latency, secure dedicated network connection that connects your on-premises data center to Huawei Cloud. Direct Connect allows you to maximize legacy IT facilities and leverage cloud services to build a flexible, scalable hybrid cloud computing environment.

Figure 1-1 shows how Direct Connect connects an on-premises data center to the cloud.

Figure 1-1 How Direct Connect works

Why Direct Connect?

● Network quality: Direct Connect allows you to establish a dedicated network

for data transmission, which brings high network performance, low latency, and excellent user experience.

●

Security: Direct Connect establishes private connectivity between your on- premises data center and the cloud. Data is transmitted over a secure dedicated connection.

Transmission speed: A single connection supports up to 100 Gbit/s of bandwidth.

Components

●

Connection

A dedicated network connection is established between your on-premises data center and a Direct Connect location over a line you leased from a carrier. You can create a standard connection by yourself or request a hosted connection from a partner.

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1 What Is Direct Connect?

–

A standard connection has a dedicated port for your exclusive use and can be associated with multiple virtual interfaces.

A hosted connection is created by a carrier (a partner of Huawei Cloud), who allocates VLAN and bandwidth resources for you. When using this type of connections, you share a port with other users, and can create only one virtual interface for a connection.

●

Virtual gateway

A virtual gateway is a logical gateway for accessing VPCs. A virtual gateway can be associated with only one VPC, and multiple connections can access a VPC through the same virtual gateway.

● Global DC gateway

A global DC gateway enables your on-premises data center to access VPCs in multiple regions so you can use a single connection to provide high-speed access to cloud compute and storage resources in any region.

A global DC gateway can only be associated with connections terminated at the same Direct Connect location. If there are multiple connections terminated at different Direct Connect locations, you need to create multiple global DC gateways.

●

Virtual interface

A virtual interface links a connection with one or more virtual gateways, so that your on-premises network can access all the VPCs.

Accessing Direct Connect

The public cloud provides a web-based user interface, the management console, for you to access the Direct Connect service.

●

If you already have an account, log in to the management console and choose Networking > Direct Connect on the homepage.

If you do not have an account, you can sign up for one by referring to Getting Started.

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2 Product Advantages

Direct Connect has the following advantages:

● Dedicated Channels to Safeguard Data Security

–

Establish private connectivity between your on-premises network and the cloud for stable data transmission without compromising privacy.

Secure your data using encrypted, dedicated connections, which provide higher security and more reliability.

● Multiple Access Options

–

You can select from optical bare fibers and other types of leased lines, such as MSTP and MPLS VPN.

There are a number of Direct Connect locations around the globe, so you can access the cloud from anywhere nearby.

● Great Scalability for Flexible Service Deployment

–

By building a hybrid cloud, you can gain access to virtually unlimited cloud resources for flexible, scalable deployment.

You can run workloads that span on-premises infrastructure and different cloud regions and flexibly connect networks across regions.

● Ultra-low Latency and Stable Transmission

–

Enjoy faster speeds with up to 100 Gbit/s of bandwidth, supporting diverse service needs.

Configure your connections in active/active or active/standby pairs for higher reliability.

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Direct Connect Service Overview

3 Application Scenarios

Access to Multiple VPCs from an On-premises Data Center

After you connect your on-premises data center to the cloud using Direct Connect, you can use Cloud Connect to connect the VPC that your on-premises data center is accessing to those in other regions, so that your on-premises data center can access all connected VPCs.

Hybrid Cloud Deployment

Direct Connect allows you to build a hybrid environment for your on-premises data center and leverage the scalability of the cloud to expand the computing capability of your applications.

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Figure 3-1 Hybrid cloud

3 Application Scenarios

Table 3-1 Comparisons of Direct Connect and VPN in hybrid cloud deployment

Scenario

Description

Helpful Links

Cloud Service

Virtual Private Networ k (VPN)

Connect an on- premises data center to the cloud through an IPsec tunnel.

Direct Connect

Connect an on- premises data center to the cloud using a dedicated network connection.

VPN uses an encrypted communications tunnel to connect a VPC on the cloud to an on-premises data center and sends traffic over the Internet. It is inexpensive, easy to configure, and easy to use. However, VPN connections may be affected by the Internet quality.

Direct Connect provides physical connections between VPCs and data centers. It has the advantages of low latency and is very secure. Direct Connect is a good choice when there are strict requirements on network transmission quality.

Connecting to a VPC Through a VPN

What Is an Enterprise Switch?

Connecting to Multiple VPCs that Do Not Need to Communicate with Each Other

What Is an Enterprise Switch?

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4 Functions

Standard Connection

A standard connection provides an exclusive port. You can create standard connections on the management console. To improve reliability, you can create multiple connections terminated at different locations and allow them to serve as backups for each other. If you can select only one carrier due to special requirements, you must configure different physical routes for your connections.

You can choose self-service connections or full-service connections.

●

Self-service connection: Huawei Cloud only provides the port. You need to create a connection on the console, and lease a line from a carrier. Full-service connection: You only need to create a connection on the console, and Huawei Cloud will complete all operations required for network connectivity.

Figure 4-1 shows an example of how standard connections work.

Figure 4-1 Accessing the cloud using standard connections

For details, see Creating a Connection.

Hosted Connection

If you use a hosted connection to access the cloud, the port you use is shared with other users. You request a carrier (a partner of Huawei Cloud) to provide a

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4 Functions

connection to connect to your on-premises data center to Huawei Cloud. The partner has pre-connected dedicated lines terminated at the Direct Connect locations of Huawei Cloud and allocates a connection port to you after receiving your request.

Figure 4-2 shows an example of how hosted connections work.

Figure 4-2 Accessing the cloud using hosted connections

The following table compares hosted connections with standard connections.

Item

Port

Recomm ended bandwidt h

Estimate d construct ion period

Parties involved

Standard Connection

Hosted Connection

Exclusive port

Shared port

1 Gbit/s to 100 Gbit/s

Less than 1 Gbit/s

Two to three months for local lines, and three to four months for long- distance lines

About one month

Connection user, leased line carrier, equipment room provider, and Huawei Cloud

Connection user, leased line carrier, and Huawei Cloud

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4 Functions

Item

Standard Connection

Hosted Connection

Procedur e

You create a connection on the

console to order a port.

You contact the leased line carrier and supervise the line deployment from your on-premises data center to the equipment room at the location you choose.
You contact the carrier operating

the equipment room at the location you choose to complete the cabling (inlet wire and jumper) inside the equipment room.

Your carrier works with Huawei

Cloud to commission access devices.

You complete required network configuration on the console, including creating a virtual gateway and virtual interface.

Billing

● Pay for the port (by month or year)

to Huawei Cloud.

● Pay to the equipment room provider at the location for the cabling inside the equipment room.

● Pay to the carrier of your on-

premises data center for the cabling inside the equipment room.

● Pay to the leased line carrier for

other work and the bandwidth. For details, see Billing.

The partner deploys the leased line from your on-premises data center to the Direct Connect location you select.
The carrier completes the commissioning of access devices.
You complete required network configuration on the console, including creating a virtual gateway and virtual interface.

● You do not need to pay for the port to Huawei Cloud.

● Pay to the carrier of

your on-premises data center for the cabling inside the equipment room.

● Pay to the leased line carrier for other work and the bandwidth.

For details, see Partner Connections.

Direct Connect Gateway

●

Virtual gateway: A virtual gateway is a logical gateway that enables an on- premises data center to access a VPC over a connection. To enable an on- premises data center to access a VPC over a connection, you can associate the VPC with a virtual gateway. To access other VPCs, you can use VPC Peering or Cloud Connect to connect the VPC your on-premises data center is accessing to these VPCs.

A virtual gateway can only have one VPC associated. An on-premises data center can access the same VPC over two connections through one virtual gateway.

For details, see Virtual Gateways.

● Global DC gateway: A global DC gateway enables your on-premises data

center to access VPCs in multiple regions so you can use a single connection

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4 Functions

to provide high-speed access to cloud compute and storage resources in any region.

For details, see Global DC Gateways.

Virtual Interface

A virtual interface is a point of entry for an on-premises data center to access a VPC over a connection. A virtual interface associates a connection with a virtual gateway and connects the virtual gateway to a remote gateway, enabling communications between the on-premises data center and the VPC.

Virtual interfaces support static routing and BGP routing. During the establishment of network connectivity, you can use BGP to connect on-premises data centers to virtual gateways. BGP helps you build a hybrid cloud more efficiently, flexibly, and reliably.

For details, see Virtual Interfaces.

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Direct Connect Service Overview

5 Direct Connect Locations

A Direct Connect location provides access to Huawei Cloud in a region. Before using Direct Connect to access Huawei Cloud, you need to obtain the details about each location.

Direct Connect provides a number of locations for you to choose from. You can request a port by creating a connection.

For more information, submit a service ticket or contact your Direct Connect manager.

Table 5-1 Direct Connect locations in China

Region

Location

CN North-Beijing4 Beijing-Yatai

Beijing- Jiuxianqiao

Carrier

Neutral

Dr. Peng

Beijing-Huitian

Neutral

Beijing-Zhongjin

Neutral

Address

Beijing Yatai

Beijing Universal Creative Park (UCP)

Beijing Huitian Cloud Industrial Park

Centrin Data in Beijing Economic- Technological Development Area

Langfang- Wanguo

Neutral

Langfang GDS

Langfang-Range

China Telecom

Langfang-Huawei Huawei

Langfang Range Information Port

Huawei production base in Langfang

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5 Direct Connect Locations

Region

Location

Carrier

Address

Wuhan-Wugang

Neutral

Wuhan-Huawei

Huawei

CN North- Ulanqab1

Ulanqab-Jining

Huawei

Ulanqab- Meiguiying

Huawei

CN North3

Helin'geer-Nanqu Huawei

Helin'geer-Beiqu

Huawei

Helin'geer-Xiqu

Huawei

CN East- Shanghai1

Suzhou-Wanguo

Neutral

Wuhan Iron & Steel Data Industrial Park

Wuhan Research Center

Ulanqab Huawei Data Center

Ulanqab Meiguiying Base

Huawei Cloud Data Center Nanqu, Helin'geer

Huawei Cloud Data Center Beiqu, Helin'geer

Huawei Cloud Data Center Xiqu, Helin'geer

Suzhou GDS Data Center

Suzhou-Guoke

China Unicom

SISDC

Suzhou-Huawei

Huawei

Suzhou-Kunhui

Neutral

Suzhou-Wujiang

China Mobile

Shanghai- Wanguo

Neutral

Shanghai-Baoxin

China Mobile

Shanghai- Guanghuan

Hangzhou- Hanggang

Hangzhou- Huawei

Neutral

Huawei

Suzhou Research Center

Suzhou Kunhui Network

Suzhou Mobile Data Center

Shanghai GDS Data Center

Shanghai Baoxin Data Center

Beijing Sinnet Data Center

Hangzhou Iron & Steel Cloud Data Center

Hangzhou Research Center

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5 Direct Connect Locations

Region

CN East- Shanghai2

Location

Shanghai- Wanguo

Shanghai- Guanghuan

Carrier

Neutral

Shanghai-Baoxin

China Mobile

CN East2

Wuhu-Jiangbei

Huawei

Wuhu-Sanshan

Huawei

Wuhu-Zhijiao

Huawei

Address

Shanghai GDS Data Center

Beijing Sinnet Data Center

Shanghai Baoxin Data Center

Wuhu Jiangbei Data Center

Wuhu Sanshan Data Center

Wuhu Zhijiao Data Center

CN East-Qingdao

Qingdao-Jiaozhou Huawei

Jiaozhou Ka'aosi

CN South- Guangzhou

Qingdao- Hongdao

Guangzhou- Yunpu

Guangzhou- Huaxinyuan

Guangzhou- Daxuecheng

Guangzhou- Mingmei

Guangzhou- Hualong

China Mobile

China Telecom

Neutral

China Unicom

Shenzhen-Baode

Neutral

Shenzhen-Futian

Neutral

Hongdao Mobile Data Center

Guangzhou Yunpu Data Center

South China New Materials Innovation Park

Guangzhou Higher Education Mega Center

Guangzhou Mingmei Electronics

Weixin Innovation Industrial Park

Shenzhen Guanlan High- Tech Park

Futian Zhongpeng Cloud

Shenzhen- Nanshan

Neutral

Nanshan SDGI

Shenzhen-Yifeng

Neutral

Dianda Guyuan Industrial Park

Issue 01 (2026-02-27)

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5 Direct Connect Locations

Region

Location

Dongguan- Tuanbowa

Carrier

Huawei

CN Southwest- Guiyang1

Chengdu-Huawei

Huawei

Guiyang-Machang Huawei

Guiyang-Gui'an

China Mobile

Guiyang-Qixinghu Huawei

Huawei

China Telecom

China Mobile

CN-Hong Kong

Guiyang- Gaoduanyuan

Hong Kong-Sha Tin

HK-Sai Kung- Mobile

Hong Kong-Sai Kung-Global Switch

HK-Tsuen Wan- MEGA

China Telecom

Global Switch

Neutral

MEGA

Address

Huawei Base (Dongguan Songshan Lake)

Huawei Chengdu Research Center

Gui'an Machang Data Center

Gui'an New Area Electron Information Industrial Park

Gui'an Huawei Cloud Data Center

Guiyang-High-End Park

Sun Hung Kai Logistics Centre

China Mobile Global Network Center

Table 5-2 Direct Connect locations outside China

Region

Location

AP-Bangkok

Bangkok-TRUE

Bangkok-STT

Bangkok-NTT

Carrier

TRUE

STT

NTT

AP-Singapore

Singapore-Equinix

Equinix

Singapore-Global Switch Global Switch

Singapore-1Net

Singapore-Singtel

1-Net

Singtel

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5 Direct Connect Locations

Region

Location

Carrier

AP-Jakarta

AP-Manila

Singapore-Telin3

Singapore-STT

Jakarta-DCI

Jakarta-EDGE

Manila-GBP

Telin

STT

DCI

EDGE

Globe

AF-Johannesburg

Nigeria-Lagos-Medallion Medallion

Manila-Digital Halo

Digital Halo

Johannesburg-IS Parklands

Internet Solutions Parklands

Johannesburg-Teraco

Teraco

Johannesburg-DPA

Vodacom

Johannesburg-ADC

Johannesburg-MTN

AF-Cairo

Cairo-Xceed

ADC

MTN

Xceed

LA-Mexico City1

Mexico-Ixtlahuaca

Ixtlahuaca

LA-Mexico City2

Mexico-Tultitlan

Mexico-Scala

LA-Sao Paulo1

Sao Paulo-Equinix

LA-Lima1

LA-Santiago

Sao Paulo-ODATA

Sao Paulo-Scala

Sao Paulo-VIVO

Lima-TIC

Santiago-Paine

Santiago-Claro

TR-Istanbul

Istanbul-NGN

KIO MEX 5

Scala

Equinix

OData

Scala

Telefonica

Paine

Claro

Turkcell

NGN

ME-Riyadh

Riyadh-STC Khurais

STC Khurais

Riyadh-Remal

Remal

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Direct Connect Service Overview

6 Security

6.1 Identity Authentication and Access Control

Identity Authentication

You can use Identity and Access Management (IAM) to control access to your Direct Connect resources. IAM permissions define which actions on your cloud resources are allowed or denied. After creating an IAM user, the administrator needs to add it to a user group and grant the permissions required by Direct Connect to the user group. Then, all users in this group automatically inherit the granted permissions.

For details, see Permissions.

Access Control

A security group is a collection of access control rules for cloud resources, such as cloud servers, containers, and databases, that have the same security protection requirements and that are mutually trusted within a VPC. After a security group is created, you can create various access rules for the security group, and these rules will apply to all cloud resources added to this security group.

Your account automatically comes with a default security group. The default security group allows all outbound traffic, denies all inbound traffic, and allows all traffic between cloud resources in the group. Your cloud resources in this security group can communicate with each other already without adding additional rules. For details about the default security group rules, see Default Security Groups and Security Group Rules.

In addition, Huawei Cloud allows you to manage security groups and security group rules, including

●

Creating, viewing, deleting, modifying, cloning, and adding security groups

Adding, copying, modifying, deleting, importing, and exporting security group rules

● Quickly adding multiple security group rules

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6 Security

●

Viewing and changing security groups of ECSs

Adding cloud resources to or removing cloud resources from security groups

You can define access control rules for a security group. Then ECSs that will be added to this security group will be protected. For details, see Security Group.

6.2 Auditing and Logging

Cloud Trace Service (CTS) is a log audit service for Huawei Cloud security. It allows you to collect, store, and query cloud resource operation records. You can use these records to perform security analysis, audit compliance, track resource changes, and locate faults.

After CTS is enabled, traces can be generated for operations performed on the Direct Connect console.

●

For details about how to enable and configure CTS, see Enabling CTS.

For details about key operations of Direct Connect, see Key Operations Recorded by CTS.

For details about traces, see Viewing Traces.

6.3 Monitoring Security Risks

Cloud Eye is a monitoring service provided by Huawei Cloud. It provides capabilities like real-time monitoring, timely alarm reporting, resource groups, and website monitoring. Cloud Eye enables you to keep track of your resource usages and service statuses on the cloud, and quickly respond to exceptions to ensure that services run smoothly.

Monitoring is critical to ensuring the performance, reliability, and availability of Direct Connect. Cloud Eye automatically monitors your connections in real time, collects and displays monitoring data in a convenient, visualized manner, and allows you to manage alarms and notifications, helping you watch your connection performance.

For details about supported metrics and how to create alarm rules, see Monitoring.

6.4 Certificates

Compliance Certificates

Huawei Cloud services and platforms have obtained various security and compliance certifications from authoritative organizations, such as International Organization for Standardization (ISO). You can download them from the console.

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6 Security

Figure 6-1 Downloading compliance certificates

Resource Center

Huawei Cloud also provides the following resources to help users meet compliance requirements. For details, see Resource Center.

Figure 6-2 Resource center

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7 Permissions

If you need to assign different permissions to employees in your enterprise to access your Direct Connect resources, Identity and Access Management (IAM) is a good choice for fine-grained permissions management. IAM provides identity authentication, permissions management, and access control, helping you securely access your cloud resources. If your HUAWEI ID does not require IAM for permissions management, you can skip this section.

IAM is a free service. You pay only for the resources in your account.

With IAM, you can control access to specific cloud resources. For example, some software developers in your enterprise need to use Direct Connect but should not be allowed to delete other Direct Connect resources or perform any other high- risk operations. In this scenario, you can create IAM users for the software developers and grant them only the required permissions.

IAM supports role/policy-based authorization and identity policy-based authorization.

The following table describes the differences between the two authorization models.

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Table 7-1 Differences between role/policy-based and identity policy-based authorization

Name Authoriz

Role/ Policy

ation Using

User- permissi on- authoriz ation scope

Policies

Identit y policy

Permissio ns

Authorization Method

Scenario

● Syste m- define d roles

● Syste m- define d policie s

● Custo m policie s

● Syste m- define d identit y policie s

● Custo m policie s

Assigning roles or policies to principals

To authorize a user, you need to add it to a user group first and then specify the scope of authorization. It is hard to provide fine-grained permissions control using authorization by user groups and a limited number of condition keys. This method is suitable for small- and medium-sized enterprises.

● Assigning identity policies to principals

● Attaching identity policies to principals

You can authorize a user by attaching an identity policy to it. User-specific authorization and a variety of key conditions allow for more fine-grained permissions control. However, this model can be hard to set up. It requires a certain amount of expertise and is suitable for medium- and large-sized enterprises.

Assume that you want to grant IAM users the permission to create ECSs in CN North-Beijing4 and OBS buckets in CN South-Guangzhou. With role/policy-based authorization, the administrator needs to create two custom policies and attach both to the IAM users. With identity policy-based authorization, the administrator only needs to create one custom policy and configure the condition key g:RequestedRegion for the policy, and then attach the policy to the principals or grant the principals the access permissions to the specified regions. Identity policy- based authorization is more flexible than role/policy-based authorization.

Policies and actions in the two authorization models are not interoperable. You are advised to use the role/policy-based authorization model. For details about system-defined permissions, see Role/Policy-based Authorization and Identity Policy-based Authorization.

For more information about IAM, see IAM Service Overview.

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Role/Policy-based Authorization

7 Permissions

Direct Connect supports role/policy-based authorization. By default, new IAM users do not have permissions assigned. You need to add a user to one or more groups, and attach permissions policies or roles to these groups. Users inherit permissions from the groups to which they are added and can perform specified operations on cloud services based on the permissions.

Direct Connect is a project-level service deployed and accessed in specific physical regions. When you set Scope to Region-specific projects and select the specified projects (for example, ap-southeast-2) in the specified regions (for example, AP- Bangkok), the users only have permissions for VPCEP resources in the selected projects. If you set Scope to All resources, the users have permissions for VPCEP resources in all region-specific projects. When accessing Direct Connect, the users need to switch to a region where they have been authorized to use this service.

Table 7-2 lists all the system-defined policies for Direct Connect in role/policy- based authorization. System-defined policies in the two authorization models are not interoperable.

Table 7-2 Direct Connect permissions

Role/Policy

Description

Direct Connect Administrator

DCaaS Partner

Administrator permissions for Direct Connect. Users with these permissions can perform all operations on Direct Connect.

To have these permissions, users must also have the Tenant Guest and VPC Administrator permissions.

Typ e

Syst em

defi ned role

Dependency

Tenant Guest and VPC Administrator

● VPC Administrator:

project-level policy, which must be assigned in the same project

● Tenant Guest: project- level policy, which must be assigned in the same project

Direct Connect partner permissions. Users who have these permissions can create hosted operations for others.

Syst em

defi ned role

To have these permissions, users must also have the Tenant Guest and VPC Administrator permissions.

Tenant Guest and VPC Administrator

● VPC Administrator:

project-level policy, which must be assigned in the same project

● Tenant Guest: project- level policy, which must be assigned in the same project

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7 Permissions

Role/Policy

Description

DCAAS FullAccess Permissions: all

permissions for Direct Connect

Scope: project-level service

Permissions: read-only permissions for Direct Connect

Scope: project-level service

DCAAS ReadOnlyAccess

Dependency

None

Typ e

Syst em

defi ned poli cy

Syst em

defi ned poli cy

Table 7-3 lists common operations supported by each system-defined policy for Direct Connect.

Table 7-3 Common operations supported by each system-defined policy

Operation

Creating a connection

Viewing a connection

Modifying a connection

Deleting a connection

Creating a virtual gateway

Viewing a virtual gateway

Modifying a virtual gateway

Direct Connect Administrato r

DCaaS Partner

DCAAS FullAccess

DCAAS ReadOnlyAcc ess

√

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Direct Connect Administrato r

DCaaS Partner

DCAAS FullAccess

7 Permissions

DCAAS ReadOnlyAcc ess

√

Operation

Deleting a virtual gateway

Creating a global DC gateway

Viewing a global DC gateway

Modifying a global DC gateway

Deleting a global DC gateway

Creating a virtual interface

Viewing a virtual interface

Modifying a virtual interface

Deleting a virtual interface

Creating an operations connection

Viewing an operations connection

Modifying an operations connection

Deleting an operations connection

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Direct Connect Administrato r

DCaaS Partner

DCAAS FullAccess

7 Permissions

DCAAS ReadOnlyAcc ess

√

Operation

Creating a hosted connection

Viewing a hosted connection

Modifying a hosted connection

Deleting a hosted connection

Roles or Policies that the Direct Connect Console Depends on

Table 7-4 Roles or policies required for operations on the Direct Connect console

Function

Connect gateways

Dependent Cloud Service/Resource

Elastic IP

Virtual interfaces

Roles or Policies Required

You need to configure the EIP ReadOnlyAccess permission when you perform the following operations on connect gateways on the Direct Connect console:

● In the connect gateway list, view the location, bind global EIPs to a connect gateway, and manage the global EIPs bound to a connect gateway.

● On the connect gateway details page, view all the global EIPs, binding or unbinding global EIPs to the connect gateway.

When deleting a virtual interface on the Direct Connect console, you need the EIP ReadOnlyAccess permission.

Identity Policy-based Authorization

Direct Connect supports identity policy-based authorization. Table 7-5 lists all the system-defined policies for Direct Connect with identity policy-based

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7 Permissions

authorization. System-defined policies in identity policy-based authorization are not interoperable with those in role/policy-based authorization.

Table 7-5 System-defined policies supported by Direct Connect

Policy Name

Description

Policy Type

DCAASFullAccessPolicy

Full permissions for Direct Connect

System-defined identity policy

DCAASReadOnlyPolicy

Read-only permissions for Direct Connect

System-defined identity policy

Table 7-6 lists common operations supported by system-defined identity policies for Direct Connect.

Table 7-6 Common operations supported by system-defined identity policies

DCAASFullAccessPolicy

DCAASReadOnlyPolicy

Operation

Creating a connection

√

Viewing a connection √

Modifying a connection

Deleting a connection

Creating a virtual gateway

Viewing a virtual gateway

Modifying a virtual gateway

Deleting a virtual gateway

Creating a global DC gateway

Viewing a global DC gateway

Modifying a global DC gateway

Deleting a global DC gateway

√

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Direct Connect Service Overview

7 Permissions

Operation

DCAASFullAccessPolicy

DCAASReadOnlyPolicy

Creating a virtual interface

Viewing a virtual interface

Modifying a virtual interface

Deleting a virtual interface

Creating an operations connection

Viewing an operations connection

Modifying an operations connection

Deleting an operations connection

Creating a hosted connection

Viewing a hosted connection

Modifying a hosted connection

Deleting a hosted connection

√

Helpful Links

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IAM Service Overview

● Using IAM to Grant Access to Direct Connect

●

Identity Policy-based Authorization

Issue 01 (2026-02-27)

Direct Connect Service Overview

8 Notes and Constraints

Quotas

Resource

Default Quota

How to Increase Quota

Number of connections that can be created by an account in each region

Number of global DC gateways that can be created by an account in each region

Number of virtual interfaces that can be created by an account in each region

Number of local subnets for a virtual gateway

Number of routes for BGP sessions on a virtual interface

Number of remote subnets for a virtual interface

100

Submit a service ticket.

Increasing the quota is not allowed.

Submit a service ticket.

Restrictions on Locations

Before creating a connection, you need to select a location. Note the following restrictions:

●

There may be more than one location in each region. In this case, network latency from each location to different AZs in the region should be less than 5 ms.

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Direct Connect Service Overview

8 Notes and Constraints

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If your workloads have demanding requirements for network latency, you can submit a service ticket to confirm which location is the nearest to the AZ where your cloud servers are running.

For details about the locations in each region, see Direct Connect Locations.

Product Use Restrictions

●

The CIDR block of the VPC cannot overlap with the CIDR block used by the on-premises network.

The on-premises network cannot use 100.64.0.0/10, 127.0.0.0/8, 169.254.0.0/16, and 224.0.0.0/3 because they are reserved for the VPC service.

1GE and 10GE single-mode optical ports can transmit data up to 10 km. If you need an optical port to transmit data for more than 10 km, or you need a 40GE or 100GE port, you need to purchase optical modules by yourself. For suggestions on optical module selection, submit a service ticket.

If you use a Direct Connect connection to access ELB, you must select Source IP hash as the load balancing algorithm and disable sticky sessions for ELB.

By default, Direct Connect is not interconnected with Enterprise Switch. To access Enterprise Switch using Direct Connect, submit a service ticket.

● Direct Connect can respond to common ICMP packets (echo packets whose type is 8 and code is 0 and do not carry IP options) for ping detections.

●

For each connection, a maximum of 30 ping detections can be performed on the local gateway IP address over the port per second.

To connect on-premises data centers through enterprise routers, ensure that the on-premises data centers are connected to different devices. For details, see submit a service ticket.

●

A virtual gateway can be associated with only two different devices.

Network Requirements

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Your on-premises network must use a single-mode fiber with a 1GE, 10GE, 40GE, or 100GE optical module to connect to the access device on Huawei Cloud. In addition, key parameters such as the LC, wavelength, and distance must be consistent with those of the access device on Huawei Cloud. Examples of optical module parameters: 1 GE, LC single-mode, 1,310 nm, and 10 km

Auto-negotiation for the ports must be disabled. Port speed and full-duplex mode must be manually configured.

802.1Q VLAN encapsulation must be supported on all devices of the entire connection, including intermediate devices.

Your device must support Border Gateway Protocol (BGP) and BGP MD5 authentication or static routing.

(Optional) You can configure Bidirectional Forwarding Detection (BFD) on the network.

A physical connection supports jumbo frames with a default maximum transmission unit (MTU) size of 8,500 bytes. If you need to configure a larger MTU, contact the Direct Connect manager.

If you ping the IP address of the local gateway of a Direct Connect connection for connectivity test, the MTU is 1,500 bytes.

Issue 01 (2026-02-27)

Direct Connect Service Overview

8 Notes and Constraints

●

Private IP addresses are recommended for cloud and on-premises servers, and the IP address ranges used for communications cannot overlap.

Construction Notes

●

Your construction company must comply with the regulations presented by the equipment room provider and engineers. In case of any violation, the construction cannot be completed.

● No optical-to-electrical converters can be hosted or installed in the equipment

room.

● Network blocking due to state policies or Huawei Cloud management will

delay the construction. In the event of such situation, contact your Direct Connect manager.

●

The equipment room at a location is operated by a telecom carrier or a third party. If there are fees for connecting your leased line to the equipment room or an in-building cable, pay the fees to the equipment room provider.

You need to apply for a Letter of Authorization (LOA) and present the LOA when entering the equipment room for construction.

Issue 01 (2026-02-27)

Direct Connect Service Overview

9 Direct Connect and Other Services

Figure 9-1 Direct Connect and other services

Table 9-1 Related services

Cloud Service

Interaction

Reference

Virtual Private Cloud (VPC)

Your on-premises data center can access the VPCs through Direct Connect.

Creating a VPC with a Subnet

You can use VPC Peering to connect the VPC your on-premises data center is accessing to other VPCs in the same region so that your on-premises data center can access all these VPCs.

Connecting an On- Premises Data Center to Multiple VPCs in the Same Region Using Direct Connect and VPC Peering

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Direct Connect Service Overview

9 Direct Connect and Other Services

Cloud Service

Enterprise Router

NAT Gateway

VPC Endpoint (VPCEP)

Cloud Eye

Identity and Access Management (IAM)

Interaction

Reference

You can connect your on-premises data center to an enterprise router, so that your on-premises data center can access the VPCs attached to the enterprise router.

On-premises servers can share a NAT gateway to access the Internet or provide services that are accessible from the Internet.

A VPC endpoint can connect your on- premises data center to a cloud service through a VPN or Direct Connect connection over a private network.

Cloud Eye monitors Direct Connect resources and allows you to view visualized graphs.

You can grant different permissions for users to control access to Direct Connect resources.

NAT Gateway

Configuring a VPC Endpoint for Accessing the Private IP Address of OBS

Viewing Metrics

Identity and Access Management

Cloud Trace Service (CTS)

You can record operations performed on Direct Connect.

Key Operations Recorded by CTS

Issue 01 (2026-02-27)

Direct Connect Service Overview

10 Basic Concepts

Connection

A connection is a dedicated channel that connects your on-premises data center to the cloud. Connections are more stable, reliable, and secure than Internet-based connections, and provide up to 100 Gbit/s of bandwidth. Direct Connect provides ports only. After you request a connection, you need to work with the carrier and Huawei Cloud to establish network connectivity between your on-premises data center and the cloud.

Direct Connect provides standard connections and hosted connections.

●

Standard connection: A standard connection provides an exclusive port. You can create standard connections on the management console. To improve reliability, you can create multiple connections terminated at different locations and allow them to serve as backups for each other.

You can choose self-service connections or full-service connections.

–

Self-service connection: Huawei Cloud only provides the port. You need to create a connection on the console, and lease a line from a carrier.

Full-service connection: You only need to create a connection on the console, and Huawei Cloud will complete all operations required for network connectivity.

Figure 10-1 shows an example of how standard connections work.

Figure 10-1 Accessing the cloud using standard connections

Issue 01 (2026-02-27)

Direct Connect Service Overview

10 Basic Concepts

● Hosted connection: If you use a hosted connection to access the cloud, the port you use is shared with other users. These connections are created by a carrier (a partner of Huawei Cloud), who allocates the required VLAN and bandwidth for your connection. Only one virtual interface can be associated with each hosted connection.

If you are a partner, you can request operations connections. If you are a common user, you can purchase a host connection from your partner. Hosted connections must be hosted on operations connections, and your partner will allocate VLAN and bandwidth resources to the connection.

Figure 10-2 shows an example of how hosted connections work.

Figure 10-2 Accessing the cloud using hosted connections

Connections support redundant configuration. If there are two connections terminated at different locations in the same region, they can work in an active/ standby pair to back each other up. If one connection becomes faulty, the other will take over, ensuring stable services.

Virtual Gateway

A virtual gateway is a logical gateway that enables an on-premises data center to access a VPC over a connection. To enable an on-premises data center to access a VPC over a connection, you can associate the VPC with a virtual gateway. To access other VPCs, you can use VPC Peering or Cloud Connect to connect the VPC your on-premises data center is accessing to these VPCs.

A virtual gateway can only have one VPC associated. An on-premises data center can access the same VPC over two connections through one virtual gateway.

Global DC Gateway

A global DC gateway can be attached to different enterprise routers to build a central network so that your on-premises data center can access the VPCs in different regions over the Huawei backbone network. This reduces network latency, simplifies network topology, and improves O&M efficiency.

A global DC gateway can only be associated with connections terminated at the same Direct Connect location. If there are multiple connections terminated at

Issue 01 (2026-02-27)

Direct Connect Service Overview

10 Basic Concepts

different Direct Connect locations, you need to create multiple global DC gateways.

Virtual Interface

Virtual interfaces support static routing and BGP routing. You can use BGP to connect your on-premises data center to the virtual gateway over a connection. BGP helps you build a hybrid cloud more efficiently, flexibly, and reliably.

Issue 01 (2026-02-27)

Direct Connect Service Overview

11 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 11-1 shows the relationship between regions and AZs.

Figure 11-1 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 Products and Services.

Issue 01 (2026-02-27)

Direct Connect Service Overview

Selecting a Region

11 Region and AZ

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.

NO TE

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.

Issue 01 (2026-02-27)