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Dell EMC System S4048T-ON 9.14.2.12 Release Notes

Summary

Release notes for Dell EMC S4048T-ON system running Networking OS version 9.14(2.12), released March 2022. Documents new features, fixed issues, known issues, and restrictions for the 48-port 10GBase-T and 6-port QSFP+ open networking switch. Covers upgrade procedures for ONIE, DIAG packages, and Dell Networking OS installation. Includes supported hardware specifications (dual-core 1.7GHz CPU, dual PSUs, four fan modules) and software requirements. Intended for network administrators deploying and managing Dell open networking switches in enterprise environments.

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Rev. A00 March 2022

Dell EMC System S4048T–ON 9.14(2.12) Release Notes This document contains information on open and resolved caveats, and operational information specific to the Dell EMC Networking OS software and the S4048T-ON platform. Current Release Version: 9.14(2.12) Release Date: 2022-03-07 Previous Release Version: 9.14(2.11) Topics: Document Revision History Supported Hardware Supported Software New Dell EMC Networking OS Version 9.14(2.12) Features Restrictions Changes to Default Behavior and CLI Syntax Documentation Corrections Deferred Issues Fixed Issues Known Issues Upgrading the sub-components Upgrading the ONIE Package for the S4048T-ON System Upgrading the DIAG Package for the S4048T-ON System Installing Dell EMC Networking OS on the S4048T-ON using ONIE Support Resources

NOTE: This document may contain language that is not consistent with current guidelines of Dell Technologies. There are plans to update this document over subsequent releases to revise the language accordingly. Incorrect behavior or unexpected caveats are listed as the Problem Report (PR) numbers within the appropriate sections. For more information on hardware and software features, commands, and capabilities, see the Dell EMC Networking website at: https://www.dellemc.com/networking.

Document Revision History Table 1. Revision History Date Description 2022–03 Initial release.

Supported Hardware The following hardware is supported with this platform: Hardware Forty-eight fixed 10GBase-T ports supporting 1G/10G speeds

Page Summary Contents For Dell EMC System S4048T-ON 9.14.2.12 Release Notes

Page 1 Rev. A00 March 2022 Dell EMC System S4048T–ON 9.14(2.12) Release Notes This document contains information on open and resolved caveats, and operational information specific to the Dell EMC Networking ...
Page 2 Hardware Six fixed QSFP+ ports supporting either one port of 40G or four ports of 10G in breakout mode Two PSUs Four fan modules One Micro USB serial console port One universal serial bus (USB Type-A)...
Page 3 Software Minimum Release Requirement NOTE: For information on non-Dell OS versions, see the Release Notes for the Hardware Platform S4048T–ON. New Dell EMC Networking OS Version 9.14(2.12) Features Th...
Page 4 1 49 UNKNOWN UNKNOWN USC1D6J No** 1 50 QSFP 40GBASE-LR4 UQ90C7B No** 1 51 QSFP 40GBASE-SR4 7503835V009Y Yes 1 52 QSFP 40GBASE-CR4 10190002 No 1 53 QSFP 40GBASE-SR4 FE2429470007 Yes 1 54 Media not pres...
Page 5 Documentation Corrections This section describes the errors identified in the current release of the Dell EMC Networking OS. The router bgp command allows you to configure only one L3 interface with a...
Page 6 Category Description S4 — Minor: A cosmetic issue or an issue in a minor feature with little or no network impact for which there might be a work-around. Synopsis Synopsis is the title or short descri...
Page 7 Category Description Release Notes Release Notes description contains more detailed information about the issue. Work around Work around describes a mechanism for circumventing, avoiding, or recoverin...
Page 8 reload 3. Verify the Boot Selector image. EXEC Privilege Mode show system stack-unit <id> Dell EMC#show system stack-unit 1 -- Unit 1 -- Unit Type : Management Unit Status : online Next Boot : o...
Page 9 Current Boot information in the system: Card Boot Flash Current Version New Version Unit1 Boot Flash 3.27.2.3 3.27.2.10 * Warning - Upgrading boot flash is inherently risky and should only * * be atte...
Page 10 Upgrading the CPLD Image NOTE: The upgrade fpga-image stack-unit 1 booted command is hidden when using the FPGA Upgrade feature in the CLI. However, it is a supported command and will be accepted when...
Page 11 Upgrading the ONIE Package for the S4048T-ON System To upgrade the ONIE package you have installed, use one of the following two processes: zero touch (dynamic) update or manual update. Zero touch (dy...
Page 12 Press enter to boot the selected OS, `e' to edit the commands before booting or `c' for a command-line. 4. From this menu, choose the ONIE : Update ONIE option. NOTE: To choose an option from the menu...
Page 13 Installing ONIE on: /dev/sda Rebooting... ONIE:/ # discover: ONIE update mode detected. Stopping: discover...start-stop-daemon: warning: killing process 533: No such process done. Stopping: dropbear s...
Page 14 |*ONIE: Install OS | | ONIE: Rescue | | ONIE: Uninstall OS | | ONIE: Update ONIE | | ONIE: Embed ONIE | | EDA-DIAG | | | | | | | | | | | | | Use the ^ and v keys to select which entry is highlighted. ...
Page 15 Eswar/diag-installer 100% |*******************************| 148M 0:00:00 ETA ONIE: Executing installer: tftp://10.16.127.86/diag-installer-x86_64-s4048t_c2338- r0.bin Ignoring Verifying image checksum...
Page 16 Use the ^ and v keys to select which entry is highlighted. Press enter to boot the selected OS, 'f' to boot FTOS, 'b' to go to BLI, 'o' to boot ONIE, 'd' to boot DIAG-OS, 'e' to edit the commands befo...
Page 17 Stopping: discover... done. ONIE:/ # 6. Configure an interface and assign an IP address to that interface using the following command: ONIE:/ # ifconfig eth0 ip-address/prefix 7. Enter the following c...
Page 18 - repeated 3 times !!!!!!!!!!!!!!!!!!!!!!!Feb 21 06:11:22: %S4048T-ON:1 %KERN-6-INT: CP Mgmt port receiving excessive traffic; will be rate controlled - repeated 5 times 66927711 bytes successfully co...
Page 19 show version Dell EMC#show version Dell EMC Real Time Operating System Software Dell EMC Operating System Version: 2.0 Dell EMC Application Software Version: 9.14(2.12) Copyright (c) 1999-2021 by Dell...
Page 20 | ONIE: Diag ONIE | | DELL-DIAG | 4. From this menu, choose the ONIE : Uninstall OSoption. NOTE: To choose an option from the menu, highlight one of the options using the up or down arrow key and pres...
Page 21 Support Resources The following support resources are available for the S4048T–ON system. Documentation Resources This document contains operational information specific to the S4048T–ON system. For i...
Page 22 Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of d...

Manual Details

Brand Dell
Pages 22
File Size 219.69 KB
Published June 26, 2026
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Frequently Asked Questions

What is the minimum software version required for this hardware?

The minimum requirement is Dell EMC Networking OS 9.14(2.12).

Can I mix fans with different airflow directions?

No, mixing directions will trigger an alarm and may cause an auto-shutdown to prevent heat damage.

How do I downgrade the OS from version 9.14.2.12 to an earlier version?

You must uninstall the OA package, save and remove CDB files, and then downgrade the OS and reinstall the respective OA package.

What are the supported port configurations on the S4048T-ON?

It supports 48 fixed 10GBase-T ports (1G/10G) and 6 fixed QSFP+ ports (40G or four ports of 10G in breakout mode).

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