This article explains when you get SNMP Trap Messages for RE 1 "SNMP Trap generated: Fru Online (jnxFruContentsIndex 9, jnxFruL1Index 2, jnxFruL2Index 0, jnxFruL3Index 0, jnxFruName Routing Engine 1, jnxFruType 6, jnxFruSlot 1)"
You will observe the below messages
May 12 02:21:01 CHASSISD_MASTER_LOG_MSG: - No response from the other routing engine for the last 2 seconds.
May 12 02:21:12 CHASSISD_SNMP_TRAP7: SNMP trap generated: Fru Online (jnxFruContentsIndex 9, jnxFruL1Index 2, jnxFruL2Index 0, jnxFruL3Index 0, jnxFruName Routing Engine 1, jnxFruType 6, jnxFruSlot 1)
May 12 02:21:12 CHASSISD_SNMP_TRAP3: ENTITY trap generated: entStateOperEnabled (entPhysicalIndex 144, entStateAdmin 4, entStateAlarm 0)
Sometime master RE missed Keepalive from backup RE for few seconds and chassid reports the below FRU online messages once the Keepalive was received again.
Please check the output of the command "show chassis routing-engine no-forwarding" and check the uptime of both the RE's, it should be same. It means its a false positive, no action required (You can ignore)
May 12 02:21:12 CHASSISD_SNMP_TRAP0: ENTITY trap generated: entConfigChanged
May 12 02:21:12 notify_fru_power_on: NULL kvpairs for Routing Engine 1May 12 02:21:12 RE CPU DRAM size, RE1:49100