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play_arrow Fast Track: Initial Installation
- Fast Track to Rack Installation and Power
- Onboard, Configure, and Monitor MX10008
play_arrow Overview
play_arrow Site Planning, Preparation, and Specifications
play_arrow Initial Installation and Configuration
play_arrow Maintaining Components
play_arrow Troubleshooting Hardware
- Restoring Junos OS
- Alarm Messages
play_arrow Contacting Customer Support and Returning the Chassis or Components
- Contact Customer Support
- Returning the MX10008 Chassis or Components
play_arrow Safety and Compliance Information

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Removing and Installing MX10008 Switch Fabric Boards

date_range 24-Feb-25

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Handling and Storing MX10008 Switch Fabric Boards

The MX10008 Switch Fabric Boards (SFBs have fragile components. To avoid damaging the SFBs, you must follow safe handling practices.

Holding Switch Fabric Boards
Storing Switch Fabric Boards

Holding Switch Fabric Boards

While removing an SFB from the router chassis, you should hold the SFB vertically until it is clear of the router chassis. Then you should rotate the SFB 90 degrees and place it on an antistatic mat or in an electrostatic bag for storage (see Figure 1).

Figure 1: SFB SFB

The proper method of holding an SFB is to:

Hold the SFB by the ejectors while you keep the SFB vertical, and slide the SFB about three-quarters of the way out of the chassis.
Place one hand underneath the SFB to support it, and slide it completely out of the chassis.

CAUTION:
Never hold an SFB by the connector edge. The connectors are fragile. You cannot align and seat an SFB properly if the connectors are damaged.

CAUTION:
Do not stack SFBs on top of one another or on top of any other component.

Storing Switch Fabric Boards

You must store SFBs either in the chassis or in a spare shipping container, horizontally and sheet-metal side down. Do not stack these units on top of one another or on top of any other component. Place each unit separately in an antistatic bag or on an antistatic mat placed on a flat, stable surface.

Note:

Because these units are heavy, and because antistatic bags are fragile, inserting the line card into the bag is best done by two people.

Note:

The JNP10008-SF2 SFBs are shipped with protective plastic covers on the fabric interface connectors. The plastic covers keep the connectors clean and free of dust and other particles. When you remove JNP10008-SF2 SFB from the router, re-insert the protective plastic covers on the fabric interface connectors and then place the SFB in an antistatic bag or on an antistatic mat placed on a flat, stable surface.

To insert an SFB into an electrostatic bag:

Hold the unit horizontally with the faceplate toward you.
Have the second person slide the opening of the antistatic bag over the connector edge and then pull the bag to cover the unit.

If you must insert an SFB into a bag by yourself:

Lay the unit horizontally on an antistatic mat that is on a flat, stable surface with the sheet metal side down.
Orient the unit with the faceplate toward you.
Carefully insert the connector edge into the opening of the bag and pull the bag toward you to cover the unit.

Removing an MX10008 Switch Fabric Board

An MX10008 router has six Switch Fabric Boards (SFBs) that are located in the middle of the chassis behind the fan trays. SIB 0 through SIB 2 are located behind the left fan tray and SIB 3 through SIB 5 are located behind the right fan tray. You must remove the appropriate fan tray to access the failing SFB. See Removing an MX10008 Fan Tray.

Ensure you have the following equipment on hand before replacing an SFB:

Electrostatic bag or antistatic mat
Electrostatic discharge (ESD) grounding strap
Replacement SFB
SFB blank (JNP10008-SF-BLNK)

CAUTION:

Do not remove the SFB unless you have a replacement SFB or a SFB blank (JNP10008-SF-BLNK) available.

Note:

If you are not installing another SFB into the empty card slot within a short time, install the SFB blank into the slot to maintain proper airflow in the card cage.

To remove an SFB (see Figure 4):

Set the fans to full speed by using the test chassis fan tray speed 0 full and test chassis fan tray speed 1 full commands and wait for ten minutes.
Take the SFB offline using the request chassis sfb offline slot slot number command.

Note:
Place an electrostatic bag or an antistatic mat on a flat, stable surface.
Remove the appropriate fan tray (see Removing an MX10008 Fan Tray).
Wrap and fasten one end of an ESD strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis. There is an ESD point located next to the protective earthing terminal and below PSU 5 on the MX10008 rear panel (see Figure 2).
Figure 2: ESD Point on MX10008 Chassis Rear

1
—
ESD point
Loosen the captive screws at the top and bottom of the card.
Grasp both handles and spread them apart, and then slide the SFB about a quarter of the way out of the slot. See Figure 3.
Figure 3: Loosening Captive Screws and Spread Ejector Handles
Grasp the ejector handle with one hand and place your other hand under the SFB for support as you slide the SFB out of the slot (see Figure 4).

CAUTION:
The SFB surface and handles may be hot. Allow a few minutes for the surface and handles to cool by pulling out the SFB halfway out of the chassis. Wear proper protective, heat-resistant gloves while removing an SFB.

Figure 4: Removing the SFB from an MX10008 Chassis
Support the SFB as you rotate the SFB 90 degrees and place it on the antistatic mat with the printed circuit board facing upward. Be careful not to bump or handle the SFB by the connectors. If you do not have an antistatic mat, have another person help you slide the electrostatic bag over the SFB before placing it on the stable surface. See Figure 5.

CAUTION:
Do not stack hardware components on top of one another after you remove them. Place each component on an antistatic mat resting on a stable, flat surface.

Figure 5: Extracted SFB

1
—
Connectors
2
—
Printed circuit board
If you removed an JNP10008-SF2 SFB from the router, re-insert the protective plastic covers on the fabric interface connectors of the SFB to keep the connectors clean and free of dust and other particles (see Figure 6).
Figure 6: Inserting Protective Plastic Covers on JNP10008-SF2 SFB Interface Connectors

Installing an MX10008 Switch Fabric Board

An MX10008 router has six Switch Fabric Boards (SFBs) that are located in the middle of the chassis behind the fan trays. SFB 0 through SFB 2 are located behind the left fan tray, and SFB 3 through SFB 5 are located behind the right fan tray. You must remove the appropriate fan tray to install an SFB. See Removing an MX10008 Fan Tray. Fan trays must be replaced within the duration mentioned in Table 1.

Table 1: Replacement Duration for the Fan Tray
Chassis Ambient Temperature	Duration
27°C	5 minutes
35°C	3 minutes
40°C	2 minutes

Note:

When replacing the fans or SIBs at 40°C chassis ambient temperature, ensure that the fans run at 100% fan speed for at least 10 minutes before replacing the fans or SIBs.

Use the test chassis fan tray 0 speed full-speed and test chassis fan tray 1 speed full-speed commands to set the chassis fans to 100% speed.

Ensure you have the following equipment on hand before installing an SFB:

Electrostatic bag or antistatic mat
Electrostatic discharge (ESD) grounding strap
Replacement SFB

To install an SFB:

Place an electrostatic bag or an antistatic mat on a flat, stable surface.
Wrap and fasten one end of an ESD strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis. There is an ESD point located next to the protective earthing terminal and below PSU 5 on the MX10008 rear panel (see Figure 7).
Figure 7: ESD Point on MX10008 Chassis Rear

1
—
ESD point
Either remove the failing SFB and store it in an electrostatic bag or on an antistatic mat (see Removing an MX10008 Switch Fabric Board) or remove the cover panel by grasping each side of the plate and pulling the panel straight out (see Figure 8 for an example using the MX10008).
Figure 8: Removing an SFB Cover Plate on an MX10008
If you are installing JNP10008-SF2 SFBs, remove the protective plastic covers on the fabric interface connectors and save the plastic covers for future use (see Figure 9).
Figure 9: Removing Protective Plastic Covers from JNP10008-SF2 SFB Interface Connectors
Lift the SFB by the handle with one hand and support the lower edge with the other hand.
Holding the SFB vertically, slide the SFB into the open slot until the ejector handles engage and start to close.
Grasp the two ejector handles and fold them inward until they latch to so that the SFB is fully seated (see Figure 10 for the MX10008.
Figure 10: Installing an MX10008 SFB
Tighten the captive screws by using your thumb and forefinger.
Install the appropriate fan tray (see Installing an MX10008 Fan Tray).
Set the fans to normal speed by using the test chassis fan tray speed 0 normal and test chassis fan tray speed 1 normal command.

Bring the SFB online by using the

request chassis
                        sfb
                        online slot slot number

command. You can check the status of the SFB by using the show chassis sfb and the show chassis fabric plane-location commands.

content_copy zoom_out_map
root> show chassis sfb
Slot  State              Uptime
 0    Online              1 day, 17 hours, 7 minutes, 53 seconds
 1    Online              1 day, 17 hours, 7 minutes, 35 seconds
 2    Online              1 day, 17 hours, 7 minutes, 18 seconds
 3    Online              1 day, 17 hours, 7 minutes
 4    Empty           
 5    Empty   

root> show chassis fabric plane-location
------------Fabric Plane Locations-------------
Plane 0              Switch Fabric Board 0
Plane 1              Switch Fabric Board 0
Plane 2              Switch Fabric Board 0
Plane 3              Switch Fabric Board 0
Plane 4              Switch Fabric Board 1
Plane 5              Switch Fabric Board 1
Plane 6              Switch Fabric Board 1
Plane 7              Switch Fabric Board 1
Plane 8              Switch Fabric Board 2
Plane 9              Switch Fabric Board 2
Plane 10             Switch Fabric Board 2
Plane 11             Switch Fabric Board 2
Plane 12             Switch Fabric Board 3
Plane 13             Switch Fabric Board 3
Plane 14             Switch Fabric Board 3
Plane 15             Switch Fabric Board 3
Plane 16             Switch Fabric Board 4
Plane 17             Switch Fabric Board 4
Plane 18             Switch Fabric Board 4
Plane 19             Switch Fabric Board 4
Plane 20             Switch Fabric Board 5
Plane 21             Switch Fabric Board 5
Plane 22             Switch Fabric Board 5
Plane 23             Switch Fabric Board 5

Note:

If you completely powered off the SFB using the set chassis sib power-off slot slot command, you must delete the existing configuration in order to bring the SFB online. To delete the existing configuration and bring a replacement SFB online, use the delete chassis sib power-off slot slot number command.

Note:

Hyper-mode is the default forwarding mode on the JNP10004-SF2 SFB.

Upgrade from JNP10008-SF to JNP10008-SF2

The MX10008 routers support Switch Fabric Board (SFB; model number: JNP10008-SF) and the enhanced Switch Fabric Board (SFB2; model number: JNP10008-SF2). SFB2 is designed to support higher bandwidth than that provided by SFB on the MX10008 routers.

This topic explains how to upgrade from JNP10008-SF Switch Fabric Board (SFB) to enhanced Switch Fabric Board JNP10008-SF2 on MX10008 routers.

Note:

Smooth upgrade from JNP10008-SF to JNP10008-SF2 is not supported in MX10008 routers.

Note:

The MX10008 routers support either JNP10008-SF or JNP10008-SF2 only. The routers do not support JNP10008-SF and JNP10008-SF2 at the same time.

Note:

The JNP10008-SF2 operates only with the following power supplies and fan tray:

JNP10K-PWR-AC2 power supply
JNP10K-PWR-AC3 power supply
JNP10K-PWR-DC2 power supply
JNP10K-PWR-DC3 power supply
JNP10008-FAN2 fan tray
JNP10008-FTC2 fan tray controller

Ensure that you have the following tools and parts before upgrading from SFB to SFB2:

Electrostatic bag or antistatic mat
Electrostatic discharge (ESD) grounding strap
Phillips screwdriver, number 2
JNP10008-SF2s
JNP10008-FAN2 fan trays and JNP10008-FTC2 fan tray controllers if your MX10008 router has JNP10008-FAN trays and JNP10008-FAN-CTLR installed
JNP10K-PWR-AC2 or JNP10K-PWR-DC2 power supplies if your MX10008 router has JNP10K-PWR-AC or JNP10K-PWR-DC power supplies installed

Ensure that you complete the following tasks before upgrading from JNP10008-SF to JNP10008-SF2:

Prepare the router and install the version of Junos OS Release (21.4R1 or later) that supports SFB2.
Use the following CLI command to power off both the Routing and Control Boards (RCBs).
```
user@host>request vmhost power-off
```
Wait for the RCBs to gracefully shut down. Once the RCBs are powered off the router will automatically shut down.

Remove JNP10008-SFs

Wrap and fasten one end of an ESD strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis.
Remove both the fan trays. See Removing and Installing MX10008 Cooling System Components.
Using your fingers, loosen the captive screws at the top and bottom of the SFB.
Grasp both handles and spread them apart, and then slide the SFB about a quarter of the way out of the slot.
Grasp the ejector handle with one hand and place your other hand under the SFB for support as you slide the SFB out of the slot see (Figure 11).

CAUTION:
The SFB surface and handles may be hot. Allow a few minutes for the surface and handles to cool by pulling out the SFB halfway out of the chassis. Wear proper protective, heat-resistant gloves while removing an SFB.

Figure 11: Removing the SFB from an MX10008
Support the SFB as you rotate the SFB 90 degrees and place it on the antistatic mat with the printed circuit board facing upward. Be careful not to bump or handle the SFB by the connectors. If you do not have an antistatic mat, have another person help you slide the electrostatic bag over the SFB before placing it on the stable surface.

CAUTION:
Do not stack hardware components on top of one another after you remove them. Place each component on an antistatic mat resting on a stable, flat surface.
Repeat step 3 to step 6 to remove the remaining SFBs.
Remove the power supplies if you have JNP10K-PWR-AC or JNP10K-PWR-DC power supplies installed on your router. See Removing and Installing MX10000 Power System Components
Place all the removed SFBs, power supplies, and fan trays in Electrostatic bags or on antistatic mat.

Install JNP10008-SF2s

Wrap and fasten one end of an ESD strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis.
Remove the protective plastic covers that are on the fabric interface connectors of the JNP10008-SF2 SFB and save them for future use (see Figure 12).

Figure 12: Removing Protective Plastic Covers from JNP10008-SF2 SFB Interface Connectors
Lift the JNP10008-SF2 by the handle with one hand and support the lower edge with the other hand.
Holding the JNP10008-SF2 vertically, slide the JNP10008-SF2 into the open slot until the ejector handles engage and start to close.
Grasp the two ejector handles and fold them inward until they latch to seat the JNP10008-SF2 (see Figure 13).

Figure 13: Installing an JNP10008-SF2
Hand-tighten the captive screws.
Repeat step 2 to step 5 to install the remaining JNP10008-SF2s.
Install the JNP10008-FAN2 fan trays and JNP10008-FTC2 fan tray controllers. See Removing and Installing MX10008 Cooling System Components.
Install the JNP10K-PWR-AC2 or JNP10K-PWR-DC2 power supplies if you removed the JNP10K-PWR-AC or JNP10K-PWR-DC power supplies from the router.
Power on the router.

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MX10008 Universal Routing Platform Hardware Guide

ON THIS PAGE

Removing and Installing MX10008 Switch Fabric Boards

Handling and Storing MX10008 Switch Fabric Boards

Holding Switch Fabric Boards

Storing Switch Fabric Boards

Removing an MX10008 Switch Fabric Board

Installing an MX10008 Switch Fabric Board

Upgrade from JNP10008-SF to JNP10008-SF2

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