Maintaining the MX960 Host Subsystem
Purpose
For optimum router performance, verify the condition of the host subsystem. The host subsystem includes an SCB and a Routing Engine installed into a slot in the SCB.
Action
On a regular basis:
Check the LEDs on the craft interface to view information about the status of the Routing Engines.
Check the LEDs on the SCB faceplate (see Table 9 in SCB-MX Description).
Check the LEDs on the Routing Engine faceplate (see Table 10 in MX960 Routing Engine Description).
To check the status of the Routing Engines, issue the
show chassis routing-enginecommand. The output is similar to the following:user@host> show chassis routing-engine Routing Engine status: Slot 0: Current state Master Election priority Master (default) Temperature 39 degrees C / 102 degrees F CPU temperature 47 degrees C / 116 degrees F DRAM 3584 MB Memory utilization 10 percent CPU utilization: User 0 percent Background 0 percent Kernel 6 percent Interrupt 0 percent Idle 94 percent Model RE-S-2000 Serial ID 1000639065 Start time 2006-11-07 11:42:58 PST Uptime 53 minutes, 35 seconds Load averages: 1 minute 5 minute 15 minute 0.06 0.07 0.02 Routing Engine status: Slot 1: Current state Backup Election priority Backup (default) Temperature 42 degrees C / 107 degrees F CPU temperature 50 degrees C / 122 degrees F DRAM 3584 MB Memory utilization 9 percent CPU utilization: User 0 percent Background 0 percent Kernel 0 percent Interrupt 0 percent Idle 100 percent Model RE-S-2000 Serial ID 1000664335 Start time 2006-11-02 18:35:01 PST Uptime 4 days, 18 hours, 1 minute, 28 secondsTo check the status of the SCBs, issue the
show chassis environment cbcommand. The output is similar to the following:user@host> show chassis environment cb CB 0 status: State Online Master Temperature 26 degrees C / 78 degrees F Power 1 1.2 V 1202 mV 1.5 V 1508 mV 1.8 V 1830 mV 2.5 V 5053 mV 3.3 V 6593 mV 5.0 V 5111 mV 12.0 V 12181 mV 1.25 V 1263 mV 3.3 V SM3 6593 mV 5 V RE 5078 mV 12 V RE 12007 mV Power 2 11.3 V bias PEM 11253 mV 4.6 V bias MidPlane 4827 mV 11.3 V bias FPD 11408 mV 11.3 V bias POE 0 11446 mV 11.3 V bias POE 1 11408 mV Bus Revision 6 FPGA Revision 0 CB 1 status: State Online Standby Temperature 27 degrees C / 80 degrees F Power 1 1.2 V 1214 mV 1.5 V 1517 mV 1.8 V 1814 mV 2.5 V 2507 mV 3.3 V 3312 mV 5.0 V 5136 mV 12.0 V 12142 mV 1.25 V 1256 mV 3.3 V SM3 3306 mV 5 V RE 5085 mV 12 V RE 11949 mV Power 2 11.3 V bias PEM 11369 mV 4.6 V bias MidPlane 4814 mV 11.3 V bias FPD 11427 mV 11.3 V bias POE 0 11350 mV 11.3 V bias POE 1 11330 mV Bus Revision 39 FPGA Revision 1
To check the status of a specific SCB, issue the show chassis
environment cb command and include the slot number of the SCB—for
example, show chassis environment cb 0.
For more information about using the CLI, see the Junos OS manuals.