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Creating a Virtual Network with Juniper Networks Contrail

Contrail makes creating a virtual network very easy for a self-service user. You create networks and network policies at the user dashboard, then associate policies with each network. The following procedure shows how to create a virtual network when using Juniper Networks Contrail.

  1. You need to create an IP address management (IPAM) for your project for to create a virtual network. Select Configure > Networking > IP Address Management, then click the Create button.

    The Add IP Address Management window appears, see Figure 1.

    Figure 1: Add IP Address Management Add IP Address Management
  2. Complete the fields in Add IP Address Management: The fields are described in Table 1.
    Table 1: Add IP Address Management Fields

    Field

    Description

    Name

    Enter a name for the IPAM you are creating.

    DNS Method

    Select from a list the domain name server method for this IPAM: Default, Virtual DNS, Tenant, or None.

    NTP Server IP

    Enter the IP address of an NTP server to be used for this IPAM.

    Domain Name

    Enter a domain name to be used for this IPAM.
  3. You must create a network policy first, as you need a network policy to create a virtual network. Follow the steps described in Creating a Network Policy—Juniper Networks Contrail to create a network policy.
  4. Select Configure > Networking > Networks to access the Configure Networks page; see Figure 2.
    Figure 2: Configure NetworksConfigure Networks
  5. Verify that your project is displayed as active in the upper-right field, then click the icon. The Create Network window is displayed. See Figure 3. Use the scroll bar to access all sections of this window.
    Figure 3: Create NetworkCreate Network
  6. Complete the fields in the Create Network window with values that identify the network name, network policy, and IP options as needed. See field descriptions in Table 2.
    Table 2: Create Network Fields

    Field

    Description

    Name

    Enter a name for the virtual network you are creating.

    Network Policy

    Select the policy to be applied to this network from the list of available policies. You can select more than one policy by clicking each one needed.

    Subnets

    Use this area to identify and manage subnets for this virtual network. Click the + icon to open fields for IPAM, CIDR, Allocation Pools, Gateway, DNS, and DHCP. Select the subnet to be added from a drop down list in the IPAM field. Complete the remaining fields as necessary. You can add multiple subnets to a network. When finished, click the + icon to add the selections into the columns below the fields. Alternatively, click the - icon to remove the selections.

    Host Routes

    Use this area to add or remove host routes for this network. Click the + icon to open fields where you can enter the Route Prefix and the Next Hop. Click the + icon to add the information, or click the - icon to remove the information.

    Advanced Options

    Use this area to add or remove advanced options, including identifying the Admin State as Up or Down, to identify the network as Shared or External, to add DNS servers, or to define a VxLAN Identifier.

    Floating IP Pools

    Use this area to identify and manage the floating IP address pools for this virtual network. Click the + icon to open fields where you can enter the Pool Name and Projects. Click the + icon to add the information, or click the - icon to remove the information.

    Route Target

    Move the scroll bar down to access this area, then specify one or more route targets for this virtual network. Click the + icon to open fields where you can enter route target identifiers. Click the + icon to add the information, or click the - icon to remove the information.
  7. To save your network, click the Save button, or click Cancel to discard your work and start over.

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