Managing management subnets

To display the table of management subnets, go to the Infrastructure menu section, click the added data center, and select the IPAM → Subnet tab. Information about management subnets is displayed in the following columns of the table:

• Name is the name of the management subnet.
• Type is the type of the subnet. Only management subnets are presently supported.
• CIDR is the IPv4 prefix of the management subnet.
• Gateway are IPv4 addresses of gateways that the management subnet assigns to virtual network functions.
• IP range are IP address ranges from which the management subnet assigns IP addresses to CPE devices and virtual network functions.
• DNS are IPv4 addresses of the DNS servers that the management subnet assigns to virtual network functions.
• Static routes are source and destination IPv4 addresses of static routes that the management subnet assigns to virtual network functions.
• Usage is the number of IP addresses that the management subnet has assigned to CPE devices and virtual network functions.

The table of CPE devices and virtual network functions to which the management subnet has assigned IP addresses is displayed on the Usage tab. Information about CPE devices and virtual network functions is displayed in the following table columns:

• Name is the name of the management subnet that assigned an IP address to the CPE or virtual network function.
• IP is the IP address assigned to the CPE device or virtual network function.
• Client name is the name of the CPE device or virtual network function.
• Client type is information about whether the control subnet has assigned an IP address to the CPE device or virtual network function:
  • VNF
  • CPE
• Tenant is the tenant to which the CPE device was added or virtual network function was assigned.

The actions you can perform with the tables are described in the Managing solution component tables instructions.

Creating a management subnet

To create a management subnet:

1. In the menu, go to the Infrastructure section.

   This opens the resource management page. By default, the Network resources tab is selected, which displays the table of controllers.

2. In the Resources pane, select the created domain, then select the added data center in which you want to create the management subnet. After the management subnet is created, it cannot be moved to a different data center.
3. Select the IPAM tab.

   A table of management subnets is displayed.

4. In the upper part of the page, click + Subnet.
5. In the Name field, enter the name of the management subnet.
6. In the IP version drop-down list, select the version of IP addresses in the management subnet:
   • IPv4 Default value.
   • IPv6
7. In the CIDR field, enter the IPv4 prefix of the management subnet.
8. If you want the management subnet to assign a particular gateway to virtual network functions, enter the IPv4 address of the gateway in the Gateway field.
9. Specify the IP address range from which the management subnet assigns IP addresses to CPE devices and virtual network functions. To do so, under IP range, click + Addand in the displayed fields, enter the starting and ending values of the IP address range.

   The IP address range is specified and displayed in the IP range section. You can specify multiple IP address ranges or delete an IP address range. To delete an IP address range, click the delete icon next to it.

10. Specify the DNS server that the management subnet assigns to virtual network functions. To do so, under DNS, click + Add and in the displayed field, enter the IPv4 address of the DNS server.

    The DNS server is specified and displayed in the DNS section. You can specify multiple DNS servers or delete a DNS server. To delete a DNS server, click the delete icon next to it.

11. Specify the static route that the management subnet assigns to virtual network functions. To do so, under Static routes, click + Add and in the displayed fields, enter the source and destination IPv4 addresses of the static route.

    The static route is specified and displayed in the Static routes section. You can specify multiple static routes or delete a static route. To delete a static route, click the delete icon next to it.

12. Click Create.

The management subnet is created and displayed in the table.

Editing a management subnet

To edit a management subnet:

1. In the menu, go to the Infrastructure section.

   This opens the resource management page. By default, the Network resources tab is selected, which displays the table of controllers.

2. In the Resources pane, select the created domain, then select the added data center in which you created the management subnet.
3. Select the IPAM tab.

   A table of management subnets is displayed.

4. Click Management → Edit next to the management subnet that you want to edit.
5. This opens a window; in that window, edit the following settings, if necessary:
   • Name of the management subnet
   • IPv4 prefix of the management subnet
   • IPv4 addresses of gateways that the management subnet assigns to virtual network functions
   • IP address ranges from which the management subnet assigns IP addresses to CPE devices and virtual network functions
   • DNS servers that the management subnet assigns to virtual network functions
   • Static routes that the management subnet assigns to virtual network functions
6. Click Save.

The management subnet is modified and updated in the table.

Deleting a management subnet

Deleted management subnets cannot be restored.

To delete a management subnet:

1. In the menu, go to the Infrastructure section.

   This opens the resource management page. By default, the Network resources tab is selected, which displays the table of controllers.

2. In the Resources pane, select the created domain, then select the added data center in which you created the management subnet.
3. Select the IPAM tab.

   A table of management subnets is displayed.

4. Click Management → Delete next to the management subnet that you want to delete.
5. In the confirmation window, click Delete.

The management subnet is deleted and is no longer displayed in the table.