Description

This article clarifies that it is expected behavior to see complete hardware information in inventory when a certain component is removed from the chassis in MX Series routers.

Symptoms

The inventory log appears with complete hardware information when a certain component (in this case the FPC) is removed or inserted from the chassis. 

Logs 

Oct 19 18:41:59.373 2019  AN-M10K-MH-PE01 chassisd[13077]: %DAEMON-5-CHASSISD_FRU_OFFLINE_NOTICE: Taking FPC 1 offline: Offlined by cli command
Oct 19 18:42:08.480 2019  AN-M10K-MH-PE01 chassisd[13077]: %DAEMON-5-CHASSISD_SNMP_TRAP10: SNMP trap generated: FRU power off (jnxFruContentsIndex 7, jnxFruL1Index 2, jnxFruL2Index 0, jnxFruL3Index 0, jnxFruName FPC: LC2103 @ 1/*/*, jnxFruType 3, jnxFruSlot 1, jnxFruOfflineReason 7, jnxFruLastPowerOff 942208917, jnxFruLastPowerOn 930790050)
Oct 19 18:44:42.607 2019  AN-M10K-MH-PE01 chassisd[13077]: %DAEMON-5-CHASSISD_SNMP_TRAP7: SNMP trap generated: FRU removal (jnxFruContentsIndex 7, jnxFruL1Index 2, jnxFruL2Index 0, jnxFruL3Index 0, jnxFruName FPC: LC2103 @ 1/*/*, jnxFruType 3, jnxFruSlot 1)
Oct 19 18:44:42.607 2019  AN-M10K-MH-PE01 chassisd[13077]: %DAEMON-4-CHASSISD_IPC_WRITE_ERR_NULL_ARGS: FRU has no connection arguments fru_send_msg FPC 1
Oct 19 18:44:42.607 2019  AN-M10K-MH-PE01 chassisd[13077]: %DAEMON-5-CHASSISD_FRU_OFFLINE_NOTICE: Taking FPC 1 offline: Removal
Oct 19 18:45:37.652 2019  AN-M10K-MH-PE01 chassisd[13077]: %DAEMON-5-CHASSISD_SNMP_TRAP7: SNMP trap generated: FRU insertion (jnxFruContentsIndex 7, jnxFruL1Index 2, jnxFruL2Index 0, jnxFruL3Index 0, jnxFruName FPC @ 1/*/*, jnxFruType 3, jnxFruSlot 1)
Oct 19 18:45:55.474 2019  AN-M10K-MH-PE01 chassisd[13077]: %DAEMON-5-CHASSISD_SNMP_TRAP10: SNMP trap generated: FRU power on (jnxFruContentsIndex 7, jnxFruL1Index 2, jnxFruL2Index 0, jnxFruL3Index 0, jnxFruName FPC: LC2103 @ 1/*/*, jnxFruType 3, jnxFruSlot 1, jnxFruOfflineReason 2, jnxFruLastPowerOff 942224331, jnxFruLastPowerOn 942231616)

Inventory 

Oct 19 18:44:55 CB 0 - part number 750-067071, serial number xxx
Oct 19 18:44:55 CB 1 - part number 750-067071, serial number xxx
Oct 19 18:44:55 FPC 0 - part number 750-066879, serial number xxx  <<< removing the card
Oct 19 18:44:55 Fan Tray 0 0 - part number 760-069329, serial number xxx
Oct 19 18:44:55 Fan Tray 1 1 - part number 760-069329, serial number xxx
Oct 19 18:44:55 Fan Tray 2 2 - part number 760-069329, serial number xxx
Oct 19 18:44:55 Fan Tray 3 3 - part number 760-069329, serial number xxx
Oct 19 18:44:55 PEM 0 - part number 740-066937, serial number xxx
Oct 19 18:44:55 PEM 1 - part number 740-066937, serial number xxx
Oct 19 18:44:55 PEM 2 - part number 740-066937, serial number xxx
Oct 19 18:44:55 PEM 3 - part number 740-066937, serial number xxx
Oct 19 18:44:55 PEM 4 - part number 740-066937, serial number xxx
Oct 19 18:44:55 PEM 5 - part number 740-066937, serial number xxx
Oct 19 18:45:42 CB 0 - part number 750-067071, serial number xxx
Oct 19 18:45:42 CB 1 - part number 750-067071, serial number xxx
Oct 19 18:45:42 FPC 0 - part number 750-066879, serial number xxx
Oct 19 18:45:42 FPC 1 - part number 750-066879, serial number xxx <<< inserting the MPC
Oct 19 18:45:42 Fan Tray 0 0 - part number 760-069329, serial number xxx
Oct 19 18:45:42 Fan Tray 1 1 - part number 760-069329, serial number xxx
Oct 19 18:45:42 Fan Tray 2 2 - part number 760-069329, serial number xxx
Oct 19 18:45:42 Fan Tray 3 3 - part number 760-069329, serial number xxx
Oct 19 18:45:42 PEM 0 - part number 740-066937, serial number xxx
Oct 19 18:45:42 PEM 1 - part number 740-066937, serial number xxx
Oct 19 18:45:42 PEM 2 - part number 740-066937, serial number xxx
Oct 19 18:45:42 PEM 3 - part number 740-066937, serial number xxx
Oct 19 18:45:42 PEM 4 - part number 740-066937, serial number xxx
Oct 19 18:45:42 PEM 5 - part number 740-066937, serial number xxx
Oct 19 18:53:13 FPC 1 PIC 1 - part number 750-068806, serial number xxx
Oct 19 18:53:13 FPC 1 MIC 1 - part number 750-068806, serial number xxx

Solution

For TOR Velocity Program (TVP) platforms such as MX10003, MX204, all QFX platforms, PTX1k and some SRX platforms, the inventory logs will appear with all hardware information when a certain component is removed or inserted from the chassis. Only the SNMP trap is for a certain component.

This is expected behavior on TVP platform devices, and is unlike non-TVP platform devices where only the affected hardware information is displayed.

The above behavior is expected on TVP platform devices. No action is required. Customers need only note the differential behavior.