This article describes configuring LACP and VRRP (Redundancy) for SSR via MIST Portal.

To configure Redundancy and LACP on SSR, please refer: High Availability – SSR

We can go to a particular WAN Edge Template under Organization for the WAN or LAN and configure in respective field as shown below:

NOTE:

• Redundant VRRP Interfaces are only Active/Passive. In the 128T SSR Implementation, only the currently active interface will send out broadcasts for VRRP (updates on attached switch).
• Redundant VRRP Interfaces must be in the same Layer2-Domain and MUST contain a single static IP-Address. The Active/Passive Interfaces will have shared MAC-Address

https://www.mist.com/documentation/high-availability-ssr/