Binding ENIs to a Lite Server Supernode

Description

An elastic network interface (ENI) is a virtual network card. You can create and configure ENIs and attach them to your instances (ECSs and BMSs) to obtain flexible and highly available network configurations. In distributed computing environments, you may encounter insufficient storage network performance when creating or managing supernode resources. This is particularly evident when using the TCP/IP protocol, which exhibits a significant performance gap compared with RDMA. To improve the storage network performance, you can use Unified Boot and Ethernet (UBoE) NICs. You can enable the UBoE NIC when creating Lite Servers, or bind and unbind ENIs (including UBoE NICs) for existing supernode resources after creation.

Constraints

NICs can be bound only to Snt9b23 and A5 supernodes.

A specific number of NICs can be bound to resources of different specifications.

The primary NIC cannot be deleted or unbound.

Unbinding NICs is only supported for nodes that are in the Stopped state.

Binding UBoE NICs During Resource Creation

When creating supernode resources, you can bind UBoE NICs by selecting the UBoE option in the network configuration parameters. For details, see Step 5: Purchasing Lite Server Resources.

Binding ENIs to an Existing Lite Server

For existing supernodes, you can bind them to ENIs on the Lite Server details page of the ModelArts console.

1. Log in to the ModelArts console. In the navigation pane, choose Resource Management > Lite Compute Resources > Lite Servers. Go to the resource list page.
2. On the Supernodes tab page of the Lite Server resource list, click the supernode name to go to the supernode details page.
3. In the node list, click the node name to go to the node details page.
4. On the Network Interfaces tab page, click Attach Network Interface. You can either attach an existing ENI or create a new one.
   1. If you select Bind existing ENI, select an ENI and click OK.
   2. If you choose to create an ENI, configure Subnet and Security Group in the displayed dialog box. If you want to bind a UBoE ENI, select the EFI check box, select UBoE from the drop-down list, and click OK.

      Multiple security groups can be selected. You can select the default or a custom private IP address. When you select a custom private IP address, you can click the button on the right to ensure the intended IP address is available. Do not enter an occupied IP address to avoid conflicts.

5. View the added NIC on the Network Interfaces tab page of the Lite Server node details page.

Unbinding a NIC

Attached ENIs can be unbound. You can complete the unbinding between nodes and ENIs on the Lite Server details page in the ModelArts console.

1. Log in to the ModelArts console. In the navigation pane, choose Resource Management > Lite Compute Resources > Lite Servers. Go to the resource list page.
2. On the Supernodes tab page of the Lite Server resource list, click the supernode name to go to the supernode details page.
3. In the node list, click the node name to go to the node details page.
4. Click Detach on the right on the Network Interfaces tab page of the Lite Server details page and confirm the operation.