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Dell System S4048T-ON 9.14.2.14 Release Notes

Summary

This release notes document describes new features, resolved issues, known issues, and limitations in Dell System S4048T-ON version 9.14(2.14). Designed for network administrators, the document explains system requirements, upgrade paths, and known limitations. Environment requirements and support resources are also addressed.

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Rev. A00 April 2022

Dell System S4048T–ON 9.14(2.14) Release Notes This document contains information on open and resolved caveats, and operational information specific to the Dell Networking OS software and the S4048T-ON platform. Current Release Version: 9.14(2.14) Release Date: 2022-04-15 Previous Release Version: 9.14(2.12) Topics: Document Revision History Supported Hardware Supported Software New Dell Networking OS Version 9.14(2.14) 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 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 Networking website at: https://www.dellemc.com/networking.

Document Revision History Table 1. Revision History Date Description 2022–04 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 System S4048T-ON 9.14.2.14 Release Notes

Page 1 Rev. A00 April 2022 Dell System S4048T–ON 9.14(2.14) Release Notes This document contains information on open and resolved caveats, and operational information specific to the Dell Networking OS softw...
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 Networking OS Version 9.14(2.14) Features The fo...
Page 4 Before downgrading, save the current configuration and then remove the CDB files (confd_cdb.tar.gz.version and confd_cdb.tar.gz). To remove the files, use the following steps: Dell EMC#write memory De...
Page 5 Deferred Issues Issues that appear in this section were reported in Dell Networking OS version 9.14(2.0) as open, but have since been deferred. Deferred caveats are those that are found to be invalid,...
Page 6 Category Description Work around Work around describes a mechanism for circumventing, avoiding, or recovering from the issue. It might not be a permanent solution. Issues listed in the “Closed Caveats...
Page 7 Category Description S2 — Critical: An issue that renders the system or a major feature unusable, which can have a pervasive impact on the system or network, and for which there is no work-around acce...
Page 8 Proceed upgrade Boot Selector image for stack-unit 1 [yes/no]: y Bootselector image upgrade for stack-unit 1 completed successfully. Dell EMC# 2. Reload the unit. EXEC Privilege Mode reload 3. Verify ...
Page 9 Upgrade the GRUB or Boot Flash To upgrade the GRUB or Boot Flash from Dell Networking OS, perform the following steps: 1. Upgrade the S4048T-ON Boot Flash image. EXEC Privilege Mode upgrade boot bootf...
Page 10 Type Version Target checksum boot flash 3.27.2.10 Control Processor passed BOOTSEL IMAGE INFORMATION : Type Version Target checksum boot selector 3.27.0.0-4 Control Processor passed FPGA IMAGE INFORMA...
Page 11 3. The CPLD version can be verified using show revision command output: EXEC Privilege Mode show revision Dell EMC#sh revision -- Stack unit 1 -- S4048TON SYSTEM CPLD : 12 S4048TON MASTER CPLD : 13 De...
Page 12 The following menu appears: GNU GRUB version 2.02~beta2+e4a1fe391 | ONIE: Install OS | | ONIE: Rescue | | ONIE: Uninstall OS | |*ONIE: Update ONIE | | ONIE: Embed ONIE | | EDA-DIAG | | | | | | | | | |...
Page 13 NOTE: You must copy the onie-updater-x86_64-s4048t_c2338-r0 file to the /tftpboot folder in the server. ONIE is updated on the system, as shown: ONIE:/ # onie-self-update tftp://10.16.127.86/tftpboot/...
Page 14 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 15 Stopping: discover... done. ONIE:/ # 6. Configure an interface and assign an IP address to that interface using the following command: ONIE:/ # ifconfig eth0 10.16.133.213/16 Enter the following comma...
Page 16 To install the Dell Networking OS version 9.14(2.14) on a new S4048T-ON device, perform the following steps: 1. Reboot the system. During the reboot process, the system displays the following message ...
Page 17 Info: Trying DHCPv4 on interface: eth0 Info: eth1: Checking link...down. ONIE: eth1: link down. Skipping configuration. ONIE: Failed to configure eth1 interface Starting: dropbear ssh daemon... done. ...
Page 18 Follow these steps carefully to upgrade your S4048T-ON systems: 1. Dell Networking recommends that you back up your startup configuration and any important files and directories to an external media p...
Page 19 Feb 21 06:15:48: %STKUNIT1-M:CP %FILEMGR-5-FILESAVED: Copied running-config to startup-config in flash by default Dell EMC# 6. Reload the unit. EXEC Privilege Mode reload Dell EMC#reload 7. Verify the...
Page 20 2. At this prompt message, press the Esc key. The following menu appears: | Dell EMC Networking OS | Dell EMC-Boot Line Interface | DELL-DIAG | ONIE 3. From the menu, choose the ONIE option. NOTE: To ...
Page 21 Info: Unmounting kernel filesystems The system is going down NOW! Sent SIGTERM to all processes Sent SIGKILL to all processes Requesting system reboot sd 4:0:0:0: [sda] Synchronizing SCSI cache Restar...
Page 22 Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales...
Page 23 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 23
File Size 220.15 KB
Published July 01, 2026
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Frequently Asked Questions

What happens if I mix fan and PSU airflow directions?

The switch detects the discrepancy, issues an alarm, and may auto-shutdown to avoid heat damage.

Are non-Dell qualified 25G+ transceivers supported?

No. The switch places the interface in an error-disabled (down) state and generates a syslog message.

How do I upgrade the Dell Networking OS to 9.14.2.0?

Uninstall the older Open Automation (OA) package, upgrade the OS, then reinstall the OA package.

What are the hardware specs for the S4048T-ON?

48 fixed 10GBase-T ports, 6 fixed QSFP+ ports, dual-core 1.7GHz CPU, and dual hot-pluggable PSUs.

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