Fortinet Technologies Inc. Page 40 FortiVoice Enterprise Phone System 4.0.0 Administration Guide
In a redundant interface, traffic is only going over one interface at any time. This differs from an
aggregated interface where traffic is going over all interfaces for increased bandwidth. This
difference means redundant interfaces can have more robust configurations with fewer possible
points of failure. This is important in a fully-meshed high availability (HA) configuration.
A physical interface is available to be in a redundant interface if:
• it is a physical interface, not a VLAN interface
• it is not already part of a redundant interface
• it has no defined IP address and is not configured for DHCP
• it does not have any VLAN subinterfaces
• it is not monitored by HA
When a physical interface is included in a redundant interface, it is not listed on the System >
Network > Network page. You cannot configure the interface anymore.
For information about adding redundant interfaces, see “Configuring the network interfaces” on
page 40.
Loopback interfaces
A loopback interface is a logical interface that is always up (no physical link dependency) and
the attached subnet is always present in the routing table.
The FortiVoice’s loopback IP address does not depend on one specific external port, and is
therefore possible to access it through several physical or VLAN interfaces. In the current
release, you can only add one loopback interface on the FortiVoice unit.
For information about adding a loopback interface, see “Configuring the network interfaces” on
page 40.
Configuring the network interfaces
The System > Network > Network tab displays the FortiVoice unit’s network interfaces.
You must configure at least one network interface for the FortiVoice unit to connect to your
network. Depending on your network topology and other considerations, you can connect the
FortiVoice unit to your network using two or more of the network interfaces. You can configure
each network interface separately. You can also configure advanced interface options, including
VLAN subinterfaces, redundant interfaces, and loopback interfaces. For more information, see
“About FortiVoice logical interfaces” on page 39, and “Editing network interfaces” on page 41.
To view the list of network interfaces, go to System > Network > Network.
Figure 12: Network tab
GUI field Description
Name Displays the name of the network interface, such as port1.
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