I am clustering two SRX1500 firewalls across an extended L2 Switches network. The control port em0 is down with so many heartbeat error and very few Heartbeat packets received.
when I check the jsrpd log, I find this log appears multiple times "hearbeat packet size 5 is less than expected 26". The HA port is running at 1g and all the switch interfaces have an MTU of 9192