Taking an MX2000 Host Subsystem Offline

date_range 09-Mar-21

arrow_backward

arrow_forward

To take a host subsystem offline:

Determine whether the host subsystem is functioning as the primary or as the backup, using one of the two following methods:

Check the Routing Engine LEDs on the craft interface. If the green MASTER LED is lit, the corresponding host subsystem is functioning as the primary.

Issue the following command. The primary Routing Engine is designated Master in the Current state field:

content_copy zoom_out_map
user@host> show chassis routing-engine
Routing Engine status:
  Slot 0:
    Current state                  Master
    Election priority              Master (default)
    Temperature                 35 degrees C / 95 degrees F
    CPU temperature             32 degrees C / 89 degrees F
    DRAM                      16351 MB (16384 MB installed)
    Memory utilization           7 percent
    CPU utilization:
      User                       0 percent
      Background                 0 percent
      Kernel                     4 percent
      Interrupt                  1 percent
      Idle                      95 percent
    Model                          RE-S-1800x4
    Serial ID                      9009094145
    Start time                     2013-02-19 18:06:24 PST
    Uptime                         14 hours, 29 minutes, 41 seconds
    Last reboot reason             Router rebooted after a normal shutdown.
    Load averages:                 1 minute   5 minute  15 minute
                                       0.00       0.00       0.00
Routing Engine status:
  Slot 1:
    Current state                  Backup
    Election priority              Backup (default)
    Temperature                 36 degrees C / 96 degrees F
    CPU temperature             32 degrees C / 89 degrees F
    DRAM                      16351 MB (16384 MB installed)
    Memory utilization           7 percent
    CPU utilization:
      User                       0 percent
      Background                 0 percent
      Kernel                     0 percent
      Interrupt                  0 percent
      Idle                      99 percent
    Model                          RE-S-1800x4
    Serial ID                      9009094136
    Start time                     2013-02-19 18:06:33 PST
    Uptime                         14 hours, 29 minutes, 22 seconds
    Last reboot reason             Router rebooted after a normal shutdown.
    Load averages:                 1 minute   5 minute  15 minute
                                       0.00       0.00       0.00

If the host subsystem is functioning as the primary, switch it to backup by using the command:
```
user@host> request chassis routing-engine master switch
```
CAUTION:
When you request the host subsystem primary to switch to backup, a message appears indicating that the network traffic will be interrupted while the Packet Forwarding Engine is reinitialized.
On the console or other management device connected to the Routing Engine you are removing, enter CLI operational mode and issue the following command. The command shuts down the Routing Engine cleanly, so its state information is preserved:
```
user@host> request system halt
```
CAUTION:
When you request a host subsystem halt, only one Routing Engine will be halted. You must use the request chassis both-routing-engines command to halt both Routing Engines.
Wait until a message appears on the console confirming that the operating system has halted.

For more information about the command, see the Junos OS System Basics and Services Command Reference.

Note:
The Routing Engine might continue forwarding traffic for approximately 5 minutes after the request system halt command has been issued.

arrow_backward PREVIOUS Maintaining and Verifying the Status of the MX2010 Craft Interface

NEXT arrow_forward Holding an MX2010 MPC

MX2010 Universal Routing Platform Hardware Guide

Taking an MX2000 Host Subsystem Offline

Stay in touch

Helped me install or use the product
Accelerated my deployment

Discuss the product with a co-worker
Make a purchase inquiry

MX2010 Universal Routing Platform Hardware Guide

Taking an MX2000 Host Subsystem Offline

Related Documentation

Stay in touch