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Contact Customer Support and Return the Chassis or Components
If you need to return a hardware component to Juniper Networks, Inc., you need a Return Material Authorization (RMA) number and the equipment serial number. Contact the Juniper Networks Technical Assistance Center (JTAC) to generate an RMA number. You may also need to locate the chassis or component details using the CLI or by referring to equipment labels. You then pack and ship the component.
Contact Customer Support
You can contact JTAC 24 hours a day, seven days a week.
| Chat |
Use the Ask me icon at the bottom right of the Support page. Don't see the Chat icon? Read this. |
| Web | |
| Telephone |
U.S. and Canada (Toll-free): 1-888-314-JTAC (5822) Outside the US or Canada, use the relevant country number listed on the regional tabs listed on the Contact Support page. Federal Government Support: 1-833-900-1454 |
We do not support opening new cases through e-mail. Please use one of the above options to contact JTAC.
Return a Hardware Component to Juniper Networks
If a hardware component fails, contact Juniper Networks to obtain an RMA number. We use this number to track the returned material at the factory and to return the repaired or new components to you, as needed.
Do not return any component to Juniper Networks unless you have first obtained an RMA number. Juniper Networks reserves the right to refuse shipments that do not have an RMA number. Refused shipments are returned to you by collect freight.
To return a defective hardware component:
- Determine the part number and the serial number of the defective component. See Locate the Serial Number of the MX301 and MX301-M or its Components.
- Obtain an RMA number from JTAC as described in Request a Return Material Authorization.
- Pack the component for shipment. See Guidelines for Packing and Shipping Hardware Components.
For more information about return and repair policies, see the Support page at https://support.juniper.net/support/.
Locate the Serial Number of the MX301 and MX301-M or its Components
If the device is operational and you can access the CLI, you can list serial numbers for the device and for some components with a CLI command. If you don’t have access to the CLI, or if the serial number for the component doesn’t appear in the command output, you can physically locate the serial number ID label on the device or component.
If you want to find the serial number ID label on a component, you need to remove the component from the device chassis.
- List the MX301 and MX301-M Chassis and Component Details Using the CLI
- Locate the Chassis Serial Number ID Label on MX301 and MX301-M
- Locate the Serial Number ID Labels on FRUs
List the MX301 and MX301-M Chassis and Component Details Using the CLI
To list the device and device components and their serial numbers, enter the show
chassis hardware command on the CLI.
Output of show chassis hardware command on MX301:
user@host> show chassis hardware
Hardware inventory:
Item Version Part number Serial number Description
Chassis RF990 JNP301 [MX301]
Routing Engine 0 BUILTIN BUILTIN RE 3500 10C 128G
CB 0 REV 31 750-182793 EBBZ2132 Control Board
FPC 0 BUILTIN BUILTIN FPC-BUILTIN
PIC 0 BUILTIN BUILTIN MRATE PIC 4x400G/14x100G/8x50G
Xcvr 0 XXXX NON-JNPR AR5N000003 QSFP112-400GBASE-LR4
Xcvr 12 XXXX NON-JNPR AR5P000004 QSFP112-400GBASE-FR4
Xcvr 13 XXXX NON-JNPR AR5P000006 QSFP112-400GBASE-FR4
Xcvr 22 XXXX NON-JNPR AR5P000003 QSFP112-400GBASE-FR4
Mezz REV 08 711-179260 EBBZ2559 JNP301 Wan Mezz Board
PFE Board REV 07 711-178583 EBBZ2068 JNP301-LC1600
LED Board REV 03 711-181531 EBBZ1667 JNP301 LED Board
PDB REV 05 711-179324 EBBZ1950 JNP301 PD Board
PEM 0 REV 06 740-053352 1GD1E460897 JPSU-850W-AC-AFO
PEM 1 REV 06 740-053352 1GD1E460342 JPSU-850W-AC-AFO
Fan Tray 0 REV 08 750-184478 EBBY9901 JNP301 Fan Tray, Front to Back Airflow
Fan Tray 1 REV 08 750-184478 EBBZ0003 JNP301 Fan Tray, Front to Back Airflow
Fan Tray 2 REV 08 750-184478 EBBZ0200 JNP301 Fan Tray, Front to Back Airflow
Fan Tray 3 REV 08 750-184478 EBBZ0199 JNP301 Fan Tray, Front to Back Airflow
Fan Tray 4 REV 08 750-184478 EBBY9904 JNP301 Fan Tray, Front to Back Airflow
Fan Tray 5 REV 08 750-184478 EBBZ0120 JNP301 Fan Tray, Front to Back AirflowOutput of show chassis hardware command on MX301-M:
user@host> show chassis hardware
Hardware inventory:
Item Version Part number Serial number Description
Chassis RF468 JNP301 [MX301]
Routing Engine 0 BUILTIN BUILTIN RE 3500 10C 64G
CB 0 REV 31 750-182793 EBBZ2114 Control Board
FPC 0 BUILTIN BUILTIN FPC-BUILTIN
PIC 0 BUILTIN BUILTIN MRATE PIC 4x400G/14x100G/8x50G
Xcvr 4 REV 01 740-031980 NCEAU0P SFP+-10G-SR
Xcvr 5 REV 01 740-031980 ARQ0X46 SFP+-10G-SR
Xcvr 6 REV 01 740-021308 NDKAH98 SFP+-10G-SR
Xcvr 7 REV 01 740-021308 NDJCN5K SFP+-10G-SR
Xcvr 8 REV 01 740-021308 NDJCMZ9 SFP+-10G-SR
Xcvr 9 REV 01 740-021308 NDKAX6Q SFP+-10G-SR
Xcvr 10 REV 01 740-031980 AMS0UXA SFP+-10G-SR
Xcvr 11 REV 01 740-031980 NCDCL94 SFP+-10G-SR
Xcvr 14 REV 01 740-031980 NCEBVRS SFP+-10G-SR
Xcvr 15 REV 01 740-021308 NDJA34B SFP+-10G-SR
Xcvr 16 REV 01 740-021308 NDKA5SV SFP+-10G-SR
Xcvr 17 REV 01 740-021308 NDJAP92 SFP+-10G-SR
Xcvr 20 REV 01 740-031980 NCEBW3K SFP+-10G-SR
Xcvr 21 REV 01 740-031980 NCEBX5L SFP+-10G-SR
Xcvr 23 REV 01 740-067443 XWR0RYY QSFP+-40G-SR4
Xcvr 24 REV 02 740-013111 A273163 SFP-T
Mezz REV 08 711-179260 EBBZ2519 JNP301 Wan Mezz Board
PFE Board REV 07 711-178583 EBBZ2049 JNP301-LC1600
LED Board REV 03 711-181531 EBBZ1674 JNP301 LED Board
PDB REV 05 711-179324 EBBZ1924 JNP301 PD Board
PEM 0 REV 06 740-053352 1GD1E460346 JPSU-850W-AC-AFO
PEM 1 REV 06 740-053352 1GD1E460989 JPSU-850W-AC-AFO
Fan Tray 0 REV 08 750-184478 EBBZ0196 JNP301 Fan Tray, Front to Back Airflow
Fan Tray 1 REV 08 750-184478 EBBY9928 JNP301 Fan Tray, Front to Back Airflow
Fan Tray 2 REV 08 750-184478 EBBY9929 JNP301 Fan Tray, Front to Back Airflow
Fan Tray 3 REV 08 750-184478 EBBY9925 JNP301 Fan Tray, Front to Back Airflow
Fan Tray 4 REV 08 750-184478 EBBY9950 JNP301 Fan Tray, Front to Back Airflow
Fan Tray 5 REV 08 750-184478 EBBZ0108 JNP301 Fan Tray, Front to Back AirflowLocate the Chassis Serial Number ID Label on MX301 and MX301-M
You can find the chassis serial number for the MX301 and MX301-M on a label on the top panel.
1 — Serial number ID label |
Locate the Serial Number ID Labels on FRUs
The power supplies and fan modules installed in the MX301 and MX301-M are field-replaceable units (FRUs). You must remove a FRU from the router chassis to see the FRU serial number ID label.
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Power supplies—The serial number ID label is located on top of the AC, DC, and HVAC/DC power supplies for the MX301 and MX301-M.
Figure 2: Serial Number ID Label on MX301 and MX301-M AC PSU
1—Serial number ID label
Figure 3: Serial Number ID Label on MX301 and MX301-M DC PSU
1—Serial number ID label
Figure 4: Serial Number ID Label on MX301 and MX301-M HVAC/DC PSU
1—Serial number ID label
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Fan module—The serial number ID label is located on top of the fan module for an MX301 and MX301-M.
Figure 5: Serial Number ID Label on MX301 and MX301-M Fan Module
1—Serial number ID label
Remove the Solid State Drives for RMA on the MX301 and MX301-M
The MX301 and MX301-M routers have two solid-state drives (SSDs) stacked on top of each other that store the software images, system logs, and the configuration files. Before returning a chassis to Juniper Networks as part of a Return Material Authorization (RMA), you have the option to remove the SSDs and secure or dispose them according to your own company’s security policies.
Before you begin this procedure, ensure you have a Philips (+) screwdriver, number 2.
Use this optional procedure to remove the SSDs from the MX301 and MX301-M routers after the device has shut down and you’ve removed it from the rack. The single SSD door is located on top of the device.
Request a Return Material Authorization
If you are returning a device or hardware component to Juniper Networks for repair or replacement, obtain an RMA number from JTAC.
Before you request an RMA from JTAC, be prepared to provide the following information:
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Your existing service request number, if you have one
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Serial number of the device or component
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Your name, organization name, telephone number, fax number, and shipping address
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Details of the failure or problem
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Type of activity you were performing on the device when the problem occurred
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Configuration data displayed by one or more
showcommands
If you're contacting JTAC by telephone:
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To report a new incident, press the star (*) key to be routed to the next available support engineer.
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To enquire about an existing case, enter your 12-digit service request number followed by the pound (#) key.
The support representative validates your request and issues an RMA number for return of the device or component.
Guidelines for Packing and Shipping Hardware Components
When you return the chassis or components:
- Make sure to adequately protect them with packing materials. Pack them properly to prevent the pieces from moving around the carton.
- Use the original shipping materials, if they are available.
- Place the individual components in antistatic bags.
- Write the RMA number on the exterior of the box to ensure proper tracking.



