Configuring a flat network

To configure a flat network:

  1. Navigate to the topology in one of the following ways:
  2. Click the flat network that you want to configure.

    The settings area is displayed in the lower part of the page. You can expand the settings area to fill the entire page by clicking the expand icon expand_panel_up_icon_2.

  3. In the Name field, enter the name of the flat network.
  4. If necessary, in the Description field, enter a brief description of the flat network.
  5. If you want to configure the assignment of IP address to virtual network functions using DHCP:
    1. In the OpenStack DHCP drop-down list, select Enabled. The default value is Disable.
    2. In the CIDR field, enter the IPv4 prefix of the OpenStack subnet that assigns IP addresses to virtual network functions.
    3. If you want the OpenStack subnet to assign a particular gateway to virtual network functions, enter the IPv4 address of the gateway in the Gateway field.
    4. Specify the range of IP addresses from which the OpenStack subnet assigns IP addresses to virtual network functions: To do so, under Pools, click + Pooland enter the starting and ending values of the IP address range.

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

    5. Specify the DNS server that the OpenStack subnet assigns to virtual network functions. To do so, under DNS, click + DNS and 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 Delete next to it.

  6. If you want to use the flat network to create a shared network service, select the Share network check box. This check box is cleared by default.
  7. In the upper part of the settings area, click Save to save flat network settings.
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