I have set up two vMX routers with dual routing-engines as well as multiple FPCs, activated the trial license, configured lite-mode for all FPCs, and set network-services to enhanced-ip.
I have come across a very strange issue whilst setting up a LAG - when a LAG has member interfaces spread across multiple FPCs, I am unable to ping across to the other router. I have run a capture on all member interfaces between both vMX routers, and I can see icmp-request making it to the other end, but the other end doesn't respond.
As soon as I disable all member interfaces on other FPCs, so that only 1 FPC is active for a LAG, icmp starts flowing back and forth with no issues.
Has anyone experienced this behaviour before, or perhaps is it well known issue?