Create a VM Network

This topic describes how to create a VM Network on a Data Infrastructure to provide network connectivity for VM Clusters or Application VMs.

Procedure

Perform the following steps in the Console.

On the Data Infrastructures list page, select the Data Infrastructure that you want to work with. If you need help finding the list page or the Data Infrastructure, see List Data Infrastructures.
On the Data Infrastructure details page, select the VM Networks tab to view the list of all VM Networks.
On the VM Networks tab, select Create VM Network.
On the Create VM Network page, provide the following details.
- Name: The name is a user-friendly name that you can use to identify the VM Network. The name does not need to be unique, because an Oracle Cloud Identifier (OCID) uniquely identifies the VM Network.
- Create in compartment: From the list of available compartments, select the compartment in which you want to create the VM Network. By default, the current compartment is selected.
- Intended use: Select how you intend to use the VM Network.
  - Application VM
  - VM Cluster Single VM
  - VM Cluster Dual VM - High Availability
  The network details that you must provide vary based on the intended use that you select.
  
  After the VM Network is created, you cannot change its intended use.

For Application VM

If you want to configure the VM Network for an Application VM, provide the following details.
- Client network details: The client network is the primary channel for application connectivity to the Data Infrastructure resources. The following settings define the required network parameters.
  - VLAN ID: Enter a virtual LAN identifier (VLAN ID) for the client network between 1 and 4094, inclusive. To specify no VLAN tagging, enter “1”, this is equivalent to a “NULL” VLAN ID tag value. The values “0” and “4095” are reserved and cannot be entered.
  - VM IP address: Enter the IP address for the VM in the client network.
  - Netmask: Select the IP netmask for the client network.
  - Gateway: Enter the IP address of the client network gateway.
  - Hostname: Enter the host name for the VM in the client network.
  - Domain name: Enter the domain name for the client network.
- Backup network details: The backup network is the secondary channel for connectivity to the Data Infrastructure resources. It is typically used to segregate application connections on the client network from other network traffic. The following settings define the required network parameters.
  - Backup network details: Turn on to enable backup network details to provide the required details.
  - VLAN ID: Enter a virtual LAN identifier (VLAN ID) for the backup network between 1 and 4094, inclusive. To specify no VLAN tagging, enter “1”, this is equivalent to a “NULL” VLAN ID tag value. The values “0” and “4095” are reserved, and cannot be entered.
  - VM IP address: Enter the IP address for the VM in the backup network.
  - Netmask: Select the IP netmask for the backup network.
  - Gateway: Enter the IP address of the backup network gateway.
  - Hostname: Enter the host name for the VM in the backup network.
  - Domain name: Enter the domain name for the backup network.
- DNS and NTP services: The VM Network requires access to Domain Name System (DNS) and Network Time Protocol (NTP) services. The following settings enter the servers that provide these services.
  - DNS Servers: Enter the IP address of a DNS server that is accessible using the client network. You may enter up to three DNS servers.
    - Select + Another DNS Server to add more servers.
  - NTP Servers: Enter the IP address of an NTP server that is accessible using the client network. You may enter up to three NTP servers.
    - Select + Another NTP Server to add more servers.
- Advanced options: Expand to provide additional details.
  - Tags: Expand Tags to add tag details for this resource. You can add free-form tags or defined tags to this resource. You must have permission to use the tag namespace for defined tags. For more information about using tags to manage your resources, see Tags. Tags can be applied later or at any time to a resource.
Select Create VM Network.

For VM Cluster Single VM

If you want to configure the VM Network for a VM Cluster Single VM, provide the following details.
- Enable SCAN: Turn on this toggle to provide SCAN details. If SCAN is not required, keep this toggle turned off.
- Client network details: The client network is the primary channel for application connectivity to the Data Infrastructure resources. The following settings define the required network parameters.
  - VLAN ID: Enter a virtual LAN identifier (VLAN ID) for the client network between 1 and 4094, inclusive. To specify no VLAN tagging, enter “1”, this is equivalent to a “NULL” VLAN ID tag value. The values “0” and “4095” are reserved and cannot be entered.
  - VM IP address: Enter the IP address for the VM in the client network.
  - Netmask: Select the IP netmask for the client network.
  - Gateway: Enter the IP address of the client network gateway.
  - Hostname: Enter the host name for the VM in the client network.
  - Domain name: Enter the domain name for the client network.
  - If you had enabled SCAN, provide the following details.
  - Virtual IP address: Enter the virtual IP address assigned to the VM Cluster.
  - VIP name: Enter the name associated with the virtual IP address.
  - SCAN IP address: Enter the SCAN IP address.
  - SCAN name: Enter the SCAN name.
- Backup network details: The backup network is the secondary channel for connectivity to the Data Infrastructure resources. It is typically used to segregate application connections on the client network from other network traffic. The following settings define the required network parameters.
  - Enable to provide backup network details: Turn on to enable backup network details and provide the required details.
  - VLAN ID: Enter a virtual LAN identifier (VLAN ID) for the backup network between 1 and 4094, inclusive. To specify no VLAN tagging, enter “1”, this is equivalent to a “NULL” VLAN ID tag value. The values “0” and “4095” are reserved, and cannot be entered.
  - VM IP address: Enter the IP address for the VM in the backup network.
  - Netmask: Select the IP netmask for the backup network.
  - Gateway: Enter the IP address of the backup network gateway.
  - Hostname: Enter the host name for the VM in the backup network.
  - Domain name: Enter the domain name for the backup network.
- DNS and NTP services: The VM Network requires access to Domain Name System (DNS) and Network Time Protocol (NTP) services. The following settings enter the servers that provide these services.
  - DNS Servers: Enter the IP address of a DNS server that is accessible using the client network. You may enter up to three DNS servers.
    - Select + Another DNS Server to add more servers.
  - NTP Servers: Enter the IP address of an NTP server that is accessible using the client network. You may enter up to three NTP servers.
    - Select + Another NTP Server to add more servers.
- Advanced options: Expand to provide additional details.
  - Network: Expand to provide additional details.
    - SCAN listener port: (Optional) Enter the SCAN listener port for TCP/IP connections in the range between 1024 and 8999. Default is 1521.
    - SSL listener port: (Optional) Enter the SCAN listener port for TCPS connections in the range between 1024 and 8999. Default is 2484.
  - Tags: Expand Tags to add tag details for this resource. You can add free-form tags or defined tags to this resource. You must have permission to use the tag namespace for defined tags. For more information about using tags to manage your resources, see Tags. Tags can be applied later or at any time to a resource.
Select Create VM Network.

After the VM Network is created, the network details are automatically validated. If validation succeeds, the VM Network enters the Validated state. If validation fails, the VM Network enters the Validation Failed state.

If validation fails, review the validation log and error messages on the Messages tab of the Work requests page. Edit the network details as needed, and then run validation again.

You can edit and validate the VM Network any number of times until it enters the Allocated state. After the VM Network enters the Allocated state, you can no longer edit or validate it.

For more information, see:
- Edit VM Network
- Validate VM Network

For VM Cluster Dual VM - High Availability

If you want to configure the VM Network for a VM Cluster Dual VM - High Availability, provide the following details.
- Client network details: The client network is the primary channel for application connectivity to the Data Infrastructure resources. The following settings define the required network parameters.
  - VLAN ID: Enter a virtual LAN identifier (VLAN ID) for the client network between 1 and 4094, inclusive. To specify no VLAN tagging, enter “1”, this is equivalent to a “NULL” VLAN ID tag value. The values “0” and “4095” are reserved and cannot be entered.
  - VM starting IP address: Enter the starting IP address to use for generated client network allocations.
  - Netmask: Select the IP netmask for the client network.
  - Gateway: Enter the IP address of the client network gateway.
  - Hostname prefix: Enter the prefix used to generate host names in the client network.
  - Domain name: Enter the domain name for the client network.
  - Review client network allocations: Review the generated IP addresses and hostnames against those assigned to the client network in your data center, and update any differences so they accurately reflect the real values.
    - Select Review client network allocations to view client network allocations details.
    - In the Client network allocations panel, verify that the generated IP addresses and hostnames match the values assigned to the client network in your data center. Update any differences to ensure they match the actual assigned values, and then select Confirm.
- Backup network details: The backup network is the secondary channel for connectivity to the Data Infrastructure resources. It is typically used to segregate application connections on the client network from other network traffic. The following settings define the required network parameters.
  - Enable to provide backup network details: Turn on to enable backup network details to provide the required details.
  - VLAN ID: Enter a virtual LAN identifier (VLAN ID) for the backup network between 1 and 4094, inclusive. To specify no VLAN tagging, enter “1”, this is equivalent to a “NULL” VLAN ID tag value. The values “0” and “4095” are reserved, and cannot be entered.
  - VM starting IP address: Enter the starting IP address to use for generated backup network allocations.
  - Netmask: Select the IP netmask for the backup network.
  - Gateway: Enter the IP address of the backup network gateway.
  - Hostname prefix: Enter the prefix used to generate host names in the backup network.
  - Domain name: Enter the domain name for the backup network.
  - Review backup network allocations: Review the generated IP addresses and hostnames against those assigned for backup network in your data center, and update any differences so they accurately reflect the real values.
    - Select Review backup network allocations to view backup network allocations details.
    - In the Backup network allocations panel, verify that the generated IP addresses and hostnames match the values assigned to the backup network in your data center. Update any differences to ensure they match the actual assigned values, and then select Confirm.
- DNS and NTP services: The VM Network requires access to Domain Name System (DNS) and Network Time Protocol (NTP) services. The following settings enter the servers that provide these services.
  - DNS Servers: Enter the IP address of a DNS server that is accessible using the client network. You may enter up to three DNS servers.
    - Select + Another DNS Server to add more servers.
  - NTP Servers: Enter the IP address of an NTP server that is accessible using the client network. You may enter up to three NTP servers.
    - Select + Another NTP Server to add more servers.
- Advanced options: Expand to provide additional details.
  - Network: When SCAN is enabled, the database provides a single virtual name that clients can use to connect to a database in the cluster. SCAN simplifies client configuration and helps improve availability.
    - SCAN listener port: (Optional) Enter a SCAN listener port (TCP/IP) in the range between 1024 and 8999. Default is 1521.
    - SSL listener port: (Optional) Enter a SCAN listener port (TCPS) in the range between 1024 and 8999. Default is 2484.
  - Tags: Expand Tags to add tag details for this resource. You can add free-form tags or defined tags to this resource. You must have permission to use the tag namespace for defined tags. For more information about using tags to manage your resources, see Tags. Tags can be applied later or at any time to a resource.
Select Create VM Network.

After the VM Network is created, the network details are automatically validated. If validation succeeds, the VM Network enters the Validated state. If validation fails, the VM Network enters the Validation Failed state.

If validation fails, review the validation log and error messages on the Messages tab of the Work requests page. Edit the network details as needed, and then run validation again.

You can edit and validate the VM Network any number of times until it enters the Allocated state. After the VM Network enters the Allocated state, you can no longer edit or validate it.

For more information, see:
- Edit VM Network
- Validate VM Network