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request chassis cb

Syntax

Syntax (QFabric System)

Syntax (EX9253 Switches)

request chassis cb (PTX10008 Router)

Output

The following error message is displayed when you try to offine a slot when the related node is online.

Description

Control the operation of the Control Board (CB).

Options

offline

Take the Control Board offline.

Note:

On a QFabric system, to bring the backup Control Board on a QFX3008-I Interconnect device offline, issue the request chassis cb slot backup-slot-number offline command.

Note:

Only backup Control Board can be turned offline or online. To turn a Control Board offline or to bring it back online, the Routing Engine should be turned offline first.

online

Bring the Control Board online.

interconnect-device name

(QFabric systems only) (Optional) Bring the QFX3008-I Interconnect device Control Board either offline or online:

slot slot-number

The following options can be configured for CB slots:

  • offline —Take the CB slot offline.

  • online — Bring the CB slot online.

Control Board slot number:

  • M320 router—Replace slot-number with a value from 0 through 1.

  • MX480/MX240 routers—Replace slot-number with a value from 0 through 1.

  • MX960 router—Replace slot-number with a value from 0 through 2.

  • MX2020, MX2010, and MX2008 routers—Replace slot-number with 0 or 1.

  • EX8208 switch—Replace slot-number with a value from 0 through 2.

  • EX8216 switch—Replace slot-number with a value from 0 through 1.

  • QFabric System—Replace slot-number with a value from 0 through 1.

Required Privilege Level

maintenance

Output Fields

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

Sample Output

request chassis cb

request chassis cb interconnect-device (QFabric System)

request chassis cb (MX2020 Router)

request chassis cb (MX2010 Router)

request chassis cb (MX2008 Router)

request chassis cb (MX10003 Router)

request chassis cb (EX9253 Switch)

request chassis cb (ACX7509)

Usage

When request chassis cb slot 1 offline, is configured before the node is made offline, the following error Error: CB offline is not allowed, when the node is online state. Try to offline the node using "request node offline node is displayed.

Platform-Specific request chassis cb Behavior

Use Feature Explorer to confirm platform, and release support for specific features.

Use the following table to review platform-specific behaviors for your platform:

Table 1:

Platform

Difference

Junos OS Evolved device with dual Routing and Control Boards (RCBs)

After initiating a node halt, you must wait 1 minute before doing Control Board (CB) offline. This delay ensures system stability. If you try to offline a CB within this period, the system displays the following error message:

request chassis cb slot 1 offline
Error: CB offline is not allowed now, Try after sometime

Release Information

Command introduced before Junos OS Release 7.4.