Load Balancing & Fault Tolerance Tunnel Routing
Tunnel Group
A tunnel between two FortiWAN units are the connection of one of the WAN links on the local FortiWAN unit and one
of the WAN links on the remote FortiWAN unit. A tunnel group can contain multiple tunnels which might be various
combinations of WAN links between the two FortiWAN units. Traffic of a session transferred via tunnel routing
between units would be distributed to the tunnels defined in the tunnel group. Therefore, a tunnel group is logically a
big tunnel that multiple WAN links are integrated to.
In this table, tunnels are configured for a tunnel group with IP addresses of WAN links of local and remote FortiWAN
units and the routing algorithm used to rout packets over tunnels. It is possible to assign multiple tunnels to a single
group.
Group Name : Assign group name
Remote Host ID : Enter the Host ID of the Remote machine for the Tunnel Group
Algorithm :
l Round-Robin: Route the connections in every tunnel by weight. Note: Please
specify the weight value of “Group Tunnels” when selecting “Round-Robin” (See
"Load Balancing & Fault Tolerance").
l By Upstream Traffic: Route the connections to the tunnel with the lightest
upstream traffic flow (See "Load Balancing & Fault Tolerance").
103 FortiWAN Handbook
Fortinet Technologies Inc.
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