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[EOL/EOE] Behavior of "request system halt" with a CRM installed on SRX-3400/SRX-3600 device

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Article ID: KB22470 KB Last Updated: 30 Nov 2021Version: 2.0
Summary:

Note: A product listed in this article has either reached hardware End of Life (EOL) OR software End of Engineering (EOE).  Refer to End of Life Products & Milestones for the EOL, EOE, and End of Support (EOS) dates.


 

This article describes the output of the request system halt command with a CRM installed on an SRX-3400/SRX-3600 device.

 
Symptoms:

Output of system halt without CRM - run request system halt:

Halt the system ? [yes,no] (no)

Output of system halt with CRM:   

run request system halt
warning: This command will not halt the other routing-engine.
If planning to switch off power, use the both-routing-engines option.
Halt the system ? [yes,no] (no)

We can verify the presence of CRM by viewing the output of chassis hardware.

Without CRM:

Hardware inventory:
Item Version Part number Serial number Description
Chassis AA4610AA0037 SRX 3400
Midplane REV 10 710-015748 AACY9023 SRX 3400 Midplane
PEM 0 rev 10 740-027644 I262GV000P10P AC Power Supply
CB 0 REV 14 750-021914 AAAV0879 SRX3k RE-12-10
Routing Engine BUILTIN BUILTIN Routing Engine
CPP BUILTIN BUILTIN Central PFE Processor
Mezz REV 08 710-021035 AAAN7791 SRX HD Mezzanine Card
FPC 0 REV 14 750-021882 AACX9509 SRX3k SFB 12GE
PIC 0 BUILTIN BUILTIN 8x 1GE-TX 4x 1GE-SFP
FPC 1 REV 15 750-020317 AACR8209 SRX3k 16xGE SFP
PIC 0 BUILTIN BUILTIN 16x 1GE-SFP
FPC 4 REV 11 750-016077 AABA1314 SRX3k SPC
PIC 0 BUILTIN BUILTIN SPU Cp-Flow
FPC 6 REV 15 750-017866 AACN3915 SRX3k NPC
PIC 0 BUILTIN BUILTIN NPC PIC
FPC 7 REV 15 750-017866 AACN3863 SRX3k NPC
PIC 0 BUILTIN BUILTIN NPC PIC
Fan Tray 0 REV 06 750-021896 AABX1107 SRX 3400 Fan Tray

With CRM:

Hardware inventory:
Item Version Part number Serial number Description
Chassis AB4710AA0040 SRX 3600
Midplane REV 08 710-020310 AACM5753 SRX 3600 Midplane
PEM 0 rev 10 740-027644 I262GX00BM10P AC Power Supply
PEM 1 rev 10 740-027644 I262GX00BS10P AC Power Supply
CB 0 REV 19 750-021914 AACY7665 SRX3k RE-12-10
Routing Engine BUILTIN BUILTIN Routing Engine
CPP BUILTIN BUILTIN Central PFE Processor
Mezz REV 08 710-021035 AACX5729 SRX HD Mezzanine Card
CB 1 REV 08 750-032474 AACR6260 SRX3k CRM
FPC 0 REV 14 750-021882 AACT3664 SRX3k SFB 12GE
PIC 0 BUILTIN BUILTIN 8x 1GE-TX 4x 1GE-SFP
Xcvr 10 REV 02 740-013111 A492804 SFP-T
FPC 1 REV 15 750-020324 AACN4369 SRX3k 16xGE TX
PIC 0 BUILTIN BUILTIN 16x 1GE-TX
FPC 2 REV 11 750-016077 AABA1333 SRX3k SPC
PIC 0 BUILTIN BUILTIN SPU Cp-Flow
FPC 5 REV 11 750-020317 VP3844 SRX3k 16xGE SFP
PIC 0 BUILTIN BUILTIN 16x 1GE-SFP
Xcvr 0 REV 02 740-013111 9165937 SFP-T
Xcvr 2 REV 02 740-011613 PG12D1H SFP-SX
Xcvr 8 REV 02 740-011613 PG1381C SFP-SX
Xcvr 10 REV 02 740-013111 A491862 SFP-T
FPC 7 REV 13 750-016077 AACR3338 SRX3k SPC
PIC 0 BUILTIN BUILTIN SPU Flow
FPC 11 REV 15 750-017866 AACN3922 SRX3k NPC
PIC 0 BUILTIN BUILTIN NPC PIC
Fan Tray 0 REV 06 750-021599 AACA8900 SRX 3600 Fan Tray

From the above output of chassis hardware, we can view the CRM; which is noted as CB1.

Solution:

This is expected behavior. When a CRM is placed in an SRX-3400 or SRX-3600 device, the SRX device detects the CRM as a new Routing Engine, so it gives an option for the system halt with both-routing-engines.

This is due to the fact that initially the SRX device was designed to have dual Routing Engines, but this is not yet supported. However, we only need to use the system halt command without both-routing-engines, as there is no RE present in the CRM.

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