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Maintain the PTX10016 Routing and Control Boards

We ship PTX10016 routers with one or two Routing and Control Boards (RCBs) preinstalled in the chassis, depending on the configuration. You can install RCBs in the two top slots on the front of the chassis.

When you power We ship PTX10016 routers with one or two Routing and Control Boards (RCBs) preinstalled in the chassis, depending on a router with a single RCB preinstalled in it, the RCB comes online as the primary and powers on the line cards and the switch fabric. If you install the second RCB, it powers up and the Routing Engine comes online in the backup mode. You must then bring the control board of that RCB online by using the the configuration. You can install RCBs in the two top slots on the front of the chassis.request chassis cb online command.

When you power on a router with two RCBs installed in it for the first time, the RCB installed in slot CB 0 comes online as the primary (RE0 in the CLI) and powers on the line cards and the switch fabric, and the RCB installed in slot CB 1 comes online as the backup (RE1 in the CLI) by default. You can change this configuration by using the CLI. If you replace an RCB, it powers up and the Routing Engine comes online in the backup mode. You must then bring the control board of that RCB online by using the request chassis cb online command.

When you power on a router with a single RCB preinstalled in it, the RCB comes online as the primary and powers on the line cards and the switch fabric. If you install the second RCB, it powers up and the Routing Engine comes online in the backup mode; you must bring the control board of that RCB online by using the request chassis cb online command.

When you power on a router with two RCBs installed in it for the first time, the RCB installed in slot 0 comes online as the primary and powers on the line cards and the switch fabric, and the RCB installed in slot 1 comes online as the backup by default. You can change this configuration by using the CLI. If you replace an RCB, it powers up and the Routing Engine comes online in the backup mode; you must bring the control board of that RCB online by using the request chassis cb online command.

CAUTION:

When you install a replacement JNP10K-RE1-E, JNP10K-RE1- E128, or JNPR10K-RE1-ELT Routing and Control Board (RCB) into a PTX10016 router with JNP10016-SF3, the switch fabric does not recognize the RCB if a release earlier than Junos OS Evolved 20.4R2-S1 is installed on the replacement RCB. To work around this issue, perform the appropriate procedure for your device:

  • If you are replacing the primary RCB, use the show version operational-mode command to verify the RCB is running Junos OS Evolved 20.4R2-S1 or later.

    • If the RCB is running an earlier release, you must install a later release using the USB port on the RCB and the software installation procedure described in Boot Junos OS Evolved by Using a Bootable USB Drive. Install the same release you are currently using on the backup RCB.

    • If the RCB is running Release 20.4R2-S1 or later, you can upgrade the Junos Evolved OS release on the replacement RCB using the procedures described in Install, Upgrade, and Downgrade Software.

  • If you are replacing the backup RCB, use the show version invoke-on all-routing-engines operational-mode command to verify the RCB is running Junos OS Evolved 20.4R2-S1 or later.

    • If the output of the command does not return the RCB software version, you must install a later release using the USB port on the RCB and the software installation procedure described in Boot Junos OS Evolved by Using a Bootable USB Drive. Install the same release you are currently using on the primary RCB.

    • If the RCB is running Release 20.4R2-S1 or later, you can upgrade the Junos Evolved OS release on the replacement RCB to match the release running on the primary RCB using the request system software sync all-versions operational-mode command.

To install or remove an RCB, read the following sections.

Install a Routing and Control Board in the PTX10016 Router

In redundant configurations, a PTX10016 RCB is a hot-removable and hot-insertable field-replaceable unit (FRU). In base configurations, you need to install a second RCB before removing a failing RCB to prevent the router from shutting down.

Before you install an RCB, ensure that you have an electrostatic discharge (ESD) grounding strap (provided in the accessory kit).

To install an RCB:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other end of the strap to one of the ESD points on the chassis. An ESD point is located above the status LED panel on the front of the PTX10016 chassis (see Figure 1).
    Figure 1: ESD Point on the Front of the PTX10016 Chassis ESD Point on the Front of the PTX10016 Chassis
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    ESD point

    		 
  2. Either remove the cover from the RCB slot by holding the handles and pulling the cover out from the chassis (see Figure 2) or remove the failing RCB (see Remove a Routing and Control Board from the PTX10016 Router).
    Figure 2: Remove an RCB Cover Remove an RCB Cover
  3. Remove the new RCB from the antistatic bag and inspect it for any damage before installing it into the chassis.
  4. Lift the RCB by its sides, being careful not to bump the connectors.
  5. Carefully align the sides of the RCB with the guides inside the chassis.
  6. Slide the RCB into the chassis, carefully ensuring that it is correctly aligned.
  7. Grasp both handles on the RCB and rotate them simultaneously clockwise until the RCB is fully seated and the handles are vertical (see Figure 3).
    Figure 3: Install an RCBInstall an RCB

    The RCB begins the power-on sequence when fully seated.

  8. To verify that the RCB is functioning normally, check the PWR LED on its faceplate and the CONTROL BOARDS LED on the status panel. Both the LEDs should light steadily shortly after the RCB is installed. If the PWR LED is blinking yellow, there might not be sufficient power available. See PTX10016 Power Planning and Power Requirements for PTX10016 Components to ensure that adequate power is available for the additional unit.

    You can also verify that the RCB is online by using the following CLI command:

See Also

Remove a Routing and Control Board from the PTX10016 Router

In redundant configurations, a PTX10016 RCB is a hot-removable and hot-insertable field-replaceable unit (FRU). In base configurations, you need to install a second RCB before removing a failing RCB to prevent the router from shutting down. We recommend that you take base systems offline before replacing the RCB.

Before you remove a RCB, ensure that you have an electrostatic discharge (ESD) grounding strap (provided in the accessory kit).

CAUTION:

In base configurations, removal of the RCB causes the system to shut down. In redundant configurations, removal of the RCB causes the system to reboot and start the election process for a new primary.

To remove an RCB:

  1. Take the RCB offline. If Junos OS is installed in your router, use the request vmhost power-off command. If Junos OS Evolved is installed in your router, use the request node (offline | online) command.
  2. Place an electrostatic bag or antistatic mat on a flat, stable surface.
  3. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other end of the strap to one of the ESD points on the chassis. An ESD point is located next to the protective grounding terminal and below PSU 9 on the rear of the PTX10016 chassis (see Figure 4).
    Figure 4: ESD Point on the Front of the PTX10016 Chassis ESD Point on the Front of the PTX10016 Chassis
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    ESD point

    		 
  4. Simultaneously rotate the RCB handles counterclockwise to unseat the RCB.
  5. Grasp the handles and slide the RCB about halfway out of the chassis (see Figure 5).
    Figure 5: Remove an RCB Remove an RCB
  6. Grasp each side of the RCB and slide it completely out of the chassis.
  7. Place the RCB on the antistatic mat or in the antistatic bag.
  8. If you are not replacing the RCB immediately, install a cover in the empty slot—align the cover with the slot in the chassis and push it in until it is fully seated.
    Do this to protect the interior of the chassis from dust or other foreign substances and to ensure that the airflow inside the chassis is not disrupted.

See Also