Maintaining the TX Matrix Host Subsystem
Purpose
For optimum TX Matrix performance, verify the condition of the host subsystem. The host subsystem comprises up to two Routing Engines and adjacent Control Boards functioning together.
Action
On a regular basis:
Check the host subsystem LEDs (
HOST 0andHOST 1) on the craft interface. If the redHOST 0orHOST 1LED is lit, look at the LCD to get more information about the cause of the problem.Check the LED display on the craft interface to view information about the TX Matrix router temperature and the status of the Routing Engines.
Check the LEDs on the Routing Engine faceplate. During normal operations, the
ONLINELED is lit steadily green.Check the LEDs on the Control Board faceplate.
Check the status of the Routing Engines. Issue the show chassis routing-engine command.
The output is similar to the following:
user@host> show chassis routing-engine sccscc-re0: -------------------------------------------------------------------------- Routing Engine status: Slot 0: Current state Master Election priority Master (default) Temperature 36 degrees C / 96 degrees F CPU temperature 38 degrees C / 100 degrees F DRAM 2048 MB Memory utilization 11 percent CPU utilization: User 0 percent Background 0 percent Kernel 2 percent Interrupt 1 percent Idle 97 percent Model RE-4.0 Serial ID 212058900121 Start time 2004-07-26 13:27:24 PDT Uptime 2 hours, 34 minutes, 50 seconds Load averages: 1 minute 5 minute 15 minute 0.06 0.03 0.02 Routing Engine status: Slot 1: Current state Backup Election priority Backup (default) Temperature 36 degrees C / 96 degrees F CPU temperature 37 degrees C / 98 degrees F DRAM 2048 MB Memory utilization 10 percent CPU utilization: User 0 percent Background 0 percent Kernel 0 percent Interrupt 1 percent Idle 99 percent Model RE-4.0 Serial ID 211123900258 Start time 2004-07-26 14:16:02 PDT Uptime 1 hour, 46 minutesCheck the status of the Control Boards. Issue the show chassis environment cb command. The output is similar to the following:
user@host> show chassis environment cb sccscc-re0: -------------------------------------------------------------------------- CB 0 status: State Online Master Temperature 34 degrees C / 93 degrees F Power: 1.8 V 1793 mV 2.5 V 2479 mV 3.3 V 3301 mV 4.6 V 4752 mV 5.0 V 5032 mV 12.0 V 12214 mV 3.3 V bias 3313 mV 8.0 V bias 7706 mV BUS Revision 40 FPGA Revision 1 CB 1 status: State Online Standby Temperature 33 degrees C / 91 degrees F Power: 1.8 V 1785 mV 2.5 V 2468 mV 3.3 V 3293 mV 4.6 V 4747 mV 5.0 V 5025 mV 12.0 V 12253 mV 3.3 V bias 3306 mV 8.0 V bias 7721 mV BUS Revision 40 FPGA Revision 1
For more information about using the CLI, see the Junos OS manuals.