As a followup to the thread here where I was experiencing random reboots that I thought might be caused by some combination of VRRP, VLANS, and offload - I'm seeing it on other ERL hardware with only ipv4 offload enabled. The hardware in question has a much simpler config - no vlans, vrrp, etc. Just routers with three interfaces.
What is known - the units simply reboot. Could be days between reboots or hours. There is no kernel panic on the console. Typical console messages and then booting up. Traffic doesn't seem to be a determining factor, could be 80Mbps or 300Mbps. ipv4 forwarding offload is enabled.
I'll set offload to disabled for everything and hope that the little router can keep up for now, just to rule that out.