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request system halt

 

List of Syntax

Syntax

Syntax (EX Series Switches)

Syntax (PTX Series)

Syntax (TX Matrix Router)

Syntax (TX Matrix Plus Router)

Syntax (MX Series Router)

Syntax (QFX Series)

Syntax

Syntax (EX Series Switches)

Syntax (PTX Series)

Syntax (TX Matrix Router)

Syntax (TX Matrix Plus Router)

Syntax (MX Series Router)

Syntax (QFX Series)

Release Information

Command introduced before Junos OS Release 7.4.

other-routing-engine option introduced in Junos OS Release 8.0.

Command introduced in Junos OS Release 9.0 for EX Series switches.

sfc option introduced for the TX Matrix Plus router in Junos OS Release 9.6.

Command introduced in Junos OS Release 11.1 for the QFX Series.

director-device option introduced for QFabric systems in Junos OS Release 12.2.

backup-routing-engine option introduced in Junos OS Release 13.1.

Command introduced in Junos OS Release 14.1X53-D20 for the OCX Series.

Description

Stop the router or switch software.

Note

When you issue this command on an individual component—for example, a Node device—in a QFabric system, you will receive a warning that says “Hardware-based members will halt, Virtual Junos Routing Engines will reboot.” If you want to halt only one member of a Node group, issue this command with the member option on the Node device CLI, because you cannot issue this command from the QFabric CLI. Also, issuing this command might cause traffic loss on an individual component.

When you issue this command on a QFX5100 switch, you are not prompted to reboot. You must power cycle the switch to reboot.

Note

For the routers with the Routing Engines RE-S-2x00x6, RE-PTX-2x00x8, and RE-S-2x00x8, this command is deprecated and might be removed completely in a future release.

On these routers, this command is replaced with the request vmhost halt command which provides similar functionality.

Options

noneStop the router or switch software immediately.
all-chassis(TX Matrix and TX Matrix Plus routers only) (Optional) Halt all chassis.
all-lcc(TX Matrix and TX Matrix Plus routers only) (Optional) On a TX Matrix router, halt all T640 routers (or line-card chassis) connected to the TX Matrix router. On a TX Matrix Plus router, halt all T1600 routers (or line-card chassis) connected to the TX Matrix Plus router.
all-members(Optional) Halt all members of the Virtual Chassis configuration.
at time (Optional) Time at which to stop the software, specified in one of the following ways:
  • now—Stop the software immediately. This is the default.

  • +minutes—Number of minutes from now to stop the software.

  • yymmddhhmm—Absolute time at which to stop the software, specified as year, month, day, hour, and minute.

  • hh:mm—Absolute time on the current day at which to stop the software.

backup-routing-engine(Optional) Halt the backup Routing Engine. This command halts the backup Routing Engine, regardless from which Routing Engine the command is executed. For example, if you issue the command from the master Routing Engine, the backup Routing Engine is halted. If you issue the command from the backup Routing Engine, the backup Routing Engine is halted.
both-routing-engines(Optional) Halt both Routing Engines at the same time.
director-device director-device-id(QFabric systems only) Halt a specific Director device.
lcc number(TX Matrix routers and TX Matrix Plus routers only) (Optional) On a TX Matrix router, halt a specific T640 router that is connected to the TX Matrix router. On a TX Matrix Plus router, halt a specific router that is connected to the TX Matrix Plus router.

Replace number with the following values depending on the LCC configuration:

  • 0 through 3, when T640 routers are connected to a TX Matrix router in a routing matrix.

  • 0 through 3, when T1600 routers are connected to a TX Matrix Plus router in a routing matrix.

  • 0 through 7, when T1600 routers are connected to a TX Matrix Plus router with 3D SIBs in a routing matrix.

  • 0, 2, 4, or 6, when T4000 routers are connected to a TX Matrix Plus router with 3D SIBs in a routing matrix.

local(Optional) Halt the local Virtual Chassis member.
in minutes(Optional) Number of minutes from now to stop the software. This option is an alias for the at +minutes option.
media (compact-flash | disk)(Optional) Boot medium for the next boot.
media (external | internal)(EX Series and QFX Series switches and MX Series routers only) (Optional) Halt the boot media:
  • external—Halt the external mass storage device.

  • internal—Halt the internal flash device.

member member-id(Optional) Halt the specified member of the Virtual Chassis configuration. For an MX Series Virtual Chassis, member-id can only be 0 or 1.
message "text"(Optional) Message to display to all system users before stopping the software.
other-routing-engine(Optional) Halt the other Routing Engine from which the command is issued. For example, if you issue the command from the master Routing Engine, the backup Routing Engine is halted. Similarly, if you issue the command from the backup Routing Engine, the master Routing Engine is halted.
scc(TX Matrix routers only) (Optional) Halt the TX Matrix router (or switch-card chassis).
sfc number(TX Matrix Plus routers only) (Optional) Halt the TX Matrix Plus router (or switch-fabric chassis). Replace number with 0.
slice slice(EX Series and QFX Series switches only) (Optional) Halt a partition on the boot media. This option has the following suboptions:
  • 1—Halt partition 1.

  • 2—Halt partition 2.

  • alternate—Reboot from the alternate partition.

Additional Information

On the M7i router, the request system halt command does not immediately power down the Packet Forwarding Engine. The power-down process can take as long as 5 minutes.

On a TX Matrix router and TX Matrix Plus router if you issue the request system halt command on the master Routing Engine, all the master Routing Engines connected to the routing matrix are halted. If you issue this command on the backup Routing Engine, all the backup Routing Engines connected to the routing matrix are halted.

Note

If you have a router or switch with two Routing Engines and you want to shut the power off to the router or switch or remove a Routing Engine, you must first halt the backup Routing Engine (if it has been upgraded), and then halt the master Routing Engine. To halt a Routing Engine, issue the request system halt command. You can also halt both Routing Engines at the same time by issuing the request system halt both-routing-engines command.

Required Privilege Level

maintenance

List of Sample Output

request system halt

request system halt (In 2 Hours)

request system halt (Immediately)

request system halt (At 1:20 AM)

Output Fields

When you enter this command, you are provided feedback on the status of your request.

Sample Output

request system halt

user@host> request system halt

request system halt (In 2 Hours)

The following example, which assumes that the time is 5 PM (1700), illustrates three different ways to request that the system stop 2 hours from now:

user@host> request system halt at +120user@host> request system halt in 120user@host> request system halt at 19:00

request system halt (Immediately)

user@host> request system halt at now

request system halt (At 1:20 AM)

To stop the system at 1:20 AM, enter the following command. Because 1:20 AM is the next day, you must specify the absolute time.

user@host> request system halt at yymmdd120