Technical Tip: SD-WAN ADVPN 2.0 - load-balancing traffic over multiple shortcuts

[tgirard]

Description	This article describes the configuration needed to have traffic load-balanced over multiple shortcuts for ADVPN SD-WAN 2.0
Scope	Available from FortiOS 7.6.0
Solution	The load-balancing of traffic over several shortcuts will be effective when the following configuration is applied: config system sdwan config service   edit 1         set load-balance enable         set mode sla         …         set tie-break fib-best-match     next end With the above configuration, the source spoke will establish and use a full mesh of shortcuts between all local members and all members of the remote spoke within the same transport-group. The transport-group is configured at the SD-WAN member level. The algorithm used for load balancing is defined (once load-balance is enabled for this service) by: config system sdwan config service edit 1 set hash-mode For details of the different hash-modes available, see 'load balance hash methods' section of the documentation. Configuring load-balance with a manual service (config service, set mode manual) will result in only one shortcut being created in release 7.6.0.