Supporting more than two functional uplinks on the MX platform has been asked for a while. We are happy to share that MultiWAN is supported on MX75, MX85, MX95, and MX105 with MX18.2 or higher firmware required. This iteration of MultiWAN support enables a third link as a backup link which remains in standby mode until both primary and secondary uplinks are down.
The demo resource is available on Meraki Launchpad🚀 for Cisco partners.
Demo network/page: Datacenter-SA and Sydney
This screenshot from the demo environment shows the third uplink takes over when both primary and secondary uplinks fail. We are scheduling a daily event to simulate this failover behavior.
For more details about this feature, please refer to the MultiWAN Backup Uplink documentation.