# Managing High-Speed Networks

#### Scenarios

A high-speed network is an internal network among BMSs and provides high bandwidth for connecting BMSs in the same AZ. If you want to deploy services requiring high throughput and low latency, you can create high-speed networks.

#### Constraints

- When creating a BMS, the network segment used by common NICs cannot overlap with that used by high-speed NICs.
- The high-speed network does not support security groups, EIPs, DNS, VPNs, and Direct Connect connections.
- You must select different high-speed networks for different high-speed NICs of a BMS.
- After a BMS is provisioned, you cannot configure a high-speed network.

#### Create a High-Speed Network

1. Log in to the management console.
2. Under Computing, click Bare Metal Server.

   The BMS console is displayed.

3. Click the High-Speed Networks tab and then click Create High-Speed Network.
4. Set the name and subnet for the high-speed network and click OK.

#### Change the Name of a High-Speed Network

1. Log in to the management console.
2. Under Computing, click Bare Metal Server.

   The BMS console is displayed.

3. Click the High-Speed Networks tab. Locate the target high-speed network and click Modify in the Operation column.
4. Change the high-speed network name and click OK.

#### Manage Private IP Addresses

1. Log in to the management console.
2. Under Computing, click Bare Metal Server.

   The BMS console is displayed.

3. Click the High-Speed Networks tab. Locate the target high-speed network, click More in the Operation column, and select Manage Private IP Address from the drop-down list.
   - To reserve a private IP address in the high-speed network for binding the IP address to a BMS during BMS creation or for other purposes, perform steps 4 to 5.
   - To delete a private IP address, perform step 6.
4. Click Assign Private IP Address.
   - If you select Automatic Assignment, the system automatically assigns a private IP address.
   - If you select Manual Assignment, you can specify a specific IP address in the high-speed network segment as the private IP address.
5. Click OK.
6. Locate the row that contains the target private IP address, and click Delete in the Operation column. In the displayed dialog box, click OK to delete the IP address.

Parent topic: High-Speed Network