Interfaces

Objective

This guide provides instructions on how to create a Network Interface using the guided wizard in VoltConsole. For more information on a Volterra Site, see Volterra Site.

A Network Interface object represents the configuration of a network device in a fleet of Volterra Customer Edge (CE) sites.

The following options can be configured in the Network Interface object:

  • IP address allocation scheme of the network interface (DHCP client or server)
  • Virtual Network of this network interface
  • Whether to run a DHCP server on this network interface:

    • Subnet to use for allocation
    • Default gateway
    • DNS server
    • Reservations

When DHCP address assignment (server) is enabled in the Network Interface, external clients can get their addresses assigned from the configured subnet. The local interface can also get a dynamic address from the same pool if the DHCP client is enabled in the Network Interface. Gateway and DNS servers for such clients can be external addresses or addresses internally allocated from the same subnet, or they may be disabled.

Using the instructions provided in this guide, you will be able to create a Network Interface object, with all its elements, and apply it to your fleet.


Prerequisites

The following prerequisites apply:


Configuration

The following video shows the Network Interface object configuration:

Create a Network Interface

Perform the following steps:

Step 1: Start Network Interface object creation.
  • Log into VoltConsole.
  • From the System namespace, select Manage -> Networking -> Network Interfaces.

Network Interface Path
Figure: Network Interface Path

  • Click Add network interface.
Step 2: Configure Network Interface object.
  • In the Name field, enter a name for the interface object.

Network Interface Creation
Figure: Network Interface Creation

  • Optionally, select a key-value pair from the Labels field.
  • From the Interface Config Type drop-down menu, select the type of interface.
  • If you select Ethernet Interface:

    • Click Configure to set the parameters for the Ethernet configuration. Configure all parameters marked with the asterisk (*).
    • From the Ethernet Device drop-down menu, select an interface.
    • From the Select Configuration for Cluster or Specific Node drop-down menu, select whether the interface device will apply to all nodes in a cluster or to a specific node.
    • From the Select Untagged or VLAN tagged drop-down menu, select whether this interface is VLAN tagged or not tagged.
    • If you select VLAN Id, enter an Id for a tagged Ethernet interface.
    • In the IP Configuration section, select an interface address method from the Select Interface Address Method drop-down menu. If you select DHCP Client, no further configuration is needed.
    • If you select DHCP Server, click Configure to set the parameters:
    • Under DHCP Networks, click Configure to set which DCHP server to allocate IP addresses from.
    • Click Add dhcp network.
    • In the Network Prefix field, enter a prefix for a single site. For example: 192.168.11.0/24.
    • From the DHCP Pool Settings drop-down menu, select whether to include or exclude the DHCP IP address ranges.
    • Click Add item to configure the non-overlapping IP address ranges.
    • In the Starting IP field, enter an IP address to start the IP range.
    • In the Ending IP field, enter an IP address to end the IP range.
      DHCP Pool Configuration
      Figure: DHCP Pool Configuration
    • From the Select Default Gateway address drop-down menu, select how the default gateway address is determined from the options available:

      • First Address of Network: First IP address from the Network prefix configured previously.
      • Last Address of Network: Last IP address from the Network prefix configured previously.
      • Configured Address: Configure a specific value to the default gateway (must be from within the network defined in the network prefix section). If you select this option, you must add a valid IP address.
    • From the Select DNS server address drop-down menu, select how the default DNS server address is determined from the options available:

      • Default Gateway Address: DNS is the IP address of the default gateway (Volterra Node).
      • Configured Address: Configure a specific value to the DNS Server. If you select this option, you must add a valid IP address.
        Default Gateway and DNS Configuration
        Figure: Default Gateway and DNS Configuration
    • Click Add dhcp network.
    • Click Apply.
    • From the Select Interface Addressing, select how interface addressing is performed on each node. Interface Address - This is the interface address that is assigned to the Volterra Gateway node's interfaces (must be from the networks defined in the DHCP server network prefix). Automatic Start is for assigning from start of the first network in the list. Automatic End is for assigning from the end of the first network in the list.
    • In the Fixed IP Assignments for Clients section, click Add item.
    • In the MAC Address field, enter the MAC address for the DHCP client.
    • In the IPv4 Address field, enter the IP address to be assigned to the DHCP client.
    • After you finish, click Apply -> Back.
    • From the Select Virtual Network drop-down menu, select the network for this interface.
    • In the Common Configuration section, select Show Advanced Fields to expand the menu options.

      • Enter a Maximum Packet Size (MTU).
      • Enter a Priority level.
      • Select whether to probe the network from the Select Link Quality Monitoring configuration menu.
    • From the Select Primary Interface drop-down menu, select whether this interface is primary.
    • Click Save and Exit.
  • If you select Dedicated Interface:

    • In the Interface Device drop-down menu, click See Common Values to select the Ethernet device.
    • To configure the cluster configuration, select an option from the Select Configuration for Cluster or Specific Node drop-down menu.
    • From the Select Primary Interface drop-down menu, select whether this new interface object is primary or not primary.
    • After you finish, click Save and Exit.
Step 3: View the Network Interface object information.

Click > to view the Network Interface object's JSON data.

View Network Interface Object Information
Figure: View Network Interface Object Information