Administrator Guide

Version Description
8.3.1.0 Added the hard reset option.
Usage Information
Resetting the management unit is not allowed, and an error message displays if you try to do so. Resetting is a
soft reboot, including flushing the forwarding tables.
Starting with Dell EMC Networking OS version 7.8.1.0, you can run this command directly on the stack standby
unit (standby master) to reset the standby. You cannot reset any other unit from the standby unit.
Example
DellEMC#reset stack-unit 4
DellEMC#00:15:00: %STKUNIT1-M:CP %CHMGR-5-STACKUNIT_RESET: stack-unit 4
being reset
00:15:01: %STKUNIT1-M:CP %CHMGR-2-STACKUNIT_DOWN: stack-unit 4 down - reset
00:15:01: %STKUNIT1-M:CP %IFMGR-1-DEL_PORT: Removed port: Te 4/1-4/48, Fo
4/51-4/52,
00:15:01: %STKUNIT2-S:CP %IFMGR-1-DEL_PORT: Removed port: Te 4/1-4/48, Fo
4/51-4/52,
DellEMC#00:15:08: %S4048-ON:1 %IFAGT-5-STACK_PORT_LINK_DOWN: Changed stack
port state to down: 1/49
00:15:08: %STKUNIT1-M:CP %CHMGR-2-STACKUNIT_DOWN: stack-unit 4 down - card
removed
DellEMC#
Related
Commands
• reload – reboots Dell EMC Networking OS.
mixed-mode-stacking
Enables the mixed-mode stacking feature on the S4048T-ON and the S4048–ON. This feature allows a S4048-ON to join a S4048T-ON
stack. Similarly, this feature also allows a S4048T–ON to join a S4048–ON stack.
S4048–ON S4048T-ON
Syntax
mixed-mode-stacking enable
To remove the current stack group configuration, use the no mixed-mode-stacking enable command.
Parameters
enable Enter the keyword enable to enable mixed-mode stacking on the switch.
Defaults Disabled
Command Modes
• CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.10(0.1) Introduced on the S4048T-ON and S4048–ON.
Usage Information
• To form a mixed-mode stack, use only the 40G ports between the range 49 to 54.
• You cannot form a mixed-mode stack using the 10G ports. Because, the 10G ports on the S4048T are copper
ports; where as, the 10G ports on the S4048-ON are SFP ports.
• It is mandatory to enable mixed-mode stacking on the S4048-ON and S4048T-ON switches before joining a
mixed-mode stack.
• Stack election is based on the priority or the MAC address of the stack units as in homogenous stacking. The
stack-unit with the highest priority or MAC address is chosen as the master.
• TDR is a feature that is supported only on the S4048T-ON but not on the S4048-ON. If TDR is configured on
the S4048T-ON, then mixed-mode stacking can be enabled only on the S4048T-ON switches.
Stacking 1521