Redundant Connection Access

Scenarios

A local data center is connected to a VPC through a connection. To prevent a single connection failure from affecting services, you are advised to create two connections with different access locations. If a connection fails, services are switched to the other connection quickly. Therefore, the communication between the local data center and the VPC is of high quality and high reliability.

Operation Flowchart

You need to create two connections, with one connecting to Biere and the other to Magdeburg. Create a virtual gateway and access the VPC to which the services belong. Create two virtual interfaces and connect them to the same virtual gateway associated with the target VPC. Figure 2 shows how to create a redundant connection.

Procedure

Creating a Connection

1. Log in to the management console.
2. Click in the upper left corner and select a region and a project.
3. Under Network, click Direct Connect.
4. In the navigation pane of Network Console, choose Direct Connect > Connections.
5. On the displayed Connections page, click Create Connection in the upper right corner to create the first connection.
6. Follow the prompts to set the following parameters.

   Table 1 Connection parameters

   Parameter	Description	Example Value
   Region	Specifies the region in which the services will be handled. If you already selected a region and a project on the management console, you do not need to select the region here.	eu-de
   Name	Specifies the connection name. It can contain 1 to 64 characters. Only digits, letters, underscores (_), and hyphens (-) are allowed.	dc-123
   Location	Specifies the connection access location. You can select Biere or Magdeburg. The access location of the first connection must be different from that of the second connection.	Biere
   Peering Position	Specifies the physical location of the connection. The address is an identifier. Only letters, digits, underscores (_), and hyphens (-) are allowed. It can contain 0 to 64 characters.	"Marderbug-DC01"
   Bandwidth	Specifies the bandwidth size in the unit of Mbit/s. You can select one of the bandwidths provided on the scroll bar by dragging it. Also, typing a value in the input field is allowed. It is automatically changed to the next allowed value shown on the slider bar.	100
   Description	Provides supplementary information about the connection. It can contain 0 to 128 characters.	This is a connection.

7. Click Create Now, confirm the connection details, and click Submit.
   

   • Click Back to Connection List to view the created connections.
   • After clicking Submit, you will be automatically redirected to the connection list after a timeout.
8. Repeat step 4 to step 7 to create the second connection.

Creating a Virtual Gateway

1. In the navigation pane on the left, choose Direct Connect > Virtual Gateways.
2. In the upper right corner of the Virtual Gateways page, click Create Virtual Gateway.
3. Follow the prompts to set the following parameters.

   Table 2 Virtual gateway parameters

   Parameter	Description	Example Value
   Name	Specifies the virtual gateway name. It can contain 1 to 64 characters. Only digits, letters, underscores (_), and hyphens (-) are allowed.	vgw-123
   VPC	Specifies the VPC that you need to access.	VPC-001
   CIDR Block	Specifies the CIDR network segment of the VPC to be accessed by the direct connection. You can add a maximum of 50 CIDR blocks. Each pair must be unique. Separate every two CIDR blocks with commas (,).	192.168.0.0/16
   Description	Provides supplementary information about the virtual gateway. It can contain 0 to 128 characters.	This is a virtual gateway.

4. Click OK.