Create and manage LENIs

Overview

Attributes

An LENI has the following attributes.

Attribute	Description
VPC	The VPC to which the LENI is connected.
vSwitch	The vSwitch in which the LENI is deployed. The associated Lingjun node must reside in the same zone as this vSwitch.
Zone	The zone of the associated Lingjun node.
Type	System type: A default system-type LENI is created with each Lingjun node. You cannot manually create a system-type LENI or disassociate it from the node. User type: You can create additional user-type LENIs for a Lingjun node.
Primary private IP address	The private IPv4 address assigned to the LENI at creation time. It falls within the CIDR block of the vSwitch in which the LENI is deployed.
Media access control (MAC) address	The MAC address assigned to the LENI.
Secondary private IPv4 address	A secondary private IPv4 address assigned to the LENI. You can assign one or more secondary private IP addresses to an LENI. These addresses can be removed and reassigned to other LENIs.

Usage notes

When you use an LENI, take note of the following items:

• Multiple secondary private IP addresses can be assigned to a single LENI and individually removed.

• When an LENI is released, its secondary private IP addresses are automatically reclaimed.

• If the associated Lingjun node is scaled in or reinstalled, user-type LENIs are automatically reclaimed.

Prerequisites

• A Lingjun node is purchased. For more information, see the "Purchase a node" section of the Manage Lingjun clusters and nodes topic.

• A VPC and a vSwitch are created. The vSwitch and the Lingjun node reside in the same zone. For more information, see Create and manage a VPC.

Limits

Item		Description
Number of resources for each attribute of an LENI	Primary private IP address	Default value: 1.
	Secondary private IPv4 address	By default, up to 10 secondary private IPv4 addresses can be assigned to an LENI. To increase this quota, submit an application in Quota Center. For more information, see Manage quotas.
	MAC address	Default value: 1.
Number of LENIs that can be associated with a Lingjun node		The number of LENIs that can be associated with a Lingjun node varies based on the node specifications. Minimum: 1.

Create an LENI

1. Log on to the Intelligent Computing Lingjun console.

2. In the left-side navigation pane, choose Network Resources > Elastic Network Interfaces.

3. On the Elastic Network Interface page, click Create ENI.

4. On the Create Lingjun Elastic Network Interface page, configure the parameters, and then click OK.

   Parameter	Description
   Zone	The zone of the associated Lingjun node.
   Node ID	The ID of the associated Lingjun node.
   VPC	The VPC to which the LENI is connected.
   vSwitch	The vSwitch in which the LENI is deployed. The vSwitch and the associated Lingjun node must reside in the same zone.
   Description	A description for identifying the LENI.

Manage LENIs

View LENIs

1. Log on to the Intelligent Computing Lingjun console.

2. In the left-side navigation pane, choose Network Resources > Elastic Network Interfaces.

3. On the Elastic Network Interface page, select Instance ID, Node ID, IP, Status, or Type from the drop-down list and enter a keyword to filter the LENIs that meet the filter conditions.

4. Click the ID of an LENI to view the details of the LENI.

Add a secondary private IP address to an LENI

1. Log on to the Intelligent Computing Lingjun console.

2. In the left-side navigation pane, choose Network Resources > Elastic Network Interfaces.

3. On the Elastic Network Interface page, find the LENI that you want to manage. Click the ID of the LENI to go to the details page of the LENI.

4. On the Manage Secondary Private IP Addresses tab, click Add to add a secondary private IP address to the LENI.

   • To assign a specific IP address, enter the address in the text box and then click OK.

   • To have the system assign an available IP address, click OK. The status of the secondary private IP address changes to In Progress and then to Available once the assignment is complete.

Remove a secondary private IP address from an LENI

1. Go to the details page of the LENI that you want to manage. For more information, see the Add secondary private IP addresses to an LENI section of this topic.

2. On the Manage Secondary Private IP Addresses tab, find the target secondary private IP address and click Delete in the Actions column.

   Note

   You can remove a secondary private IP address only if the IP address is in the Available or Unavailable state.

Delete an LENI

1. Log on to the Intelligent Computing Lingjun console.

2. In the left-side navigation pane, choose Network Resources > Elastic Network Interfaces.

3. On the Lingjun Elastic Network Interface page, find the LENI that you want to delete, click Delete in the Actions column, and follow the on-screen instructions to delete the LENI.

API operations

You can also call the following API operations to manage LENIs.

Operation	Description
CreateElasticNetworkInterface	Creates an LENI.
DeleteElasticNetworkInterface	Deletes an LENI.
UpdateElasticNetworkInterface	Updates an LENI.
ListElasticNetworkInterfaces	Queries the LENIs that are associated with a Lingjun node.
GetElasticNetworkInterface	Queries the details of an LENI.
AssignLeniPrivateIpAddress	Assigns a secondary private IP address to an LENI.
UnassignLeniPrivateIpAddress	Removes a secondary private IP address from an LENI.
UpdateLeniPrivateIpAddress	Modifies the description of a secondary private IP address of an LENI.
ListLeniPrivateIpAddresses	Queries the private IP addresses that are assigned to an LENI.
GetLeniPrivateIpAddress	Queries the details of the secondary private IP addresses that are assigned to an LENI.