Administrator Guide

Stacking
All commands in this chapter are specific to the Dell EMC Networking OS.
You can use the commands to pre-configure a switch, so that the configuration settings are invoked when the switch is attached to other
S-Series units.
For information about using the S-Series stacking feature, see the Stacking S-Series Switches section in the Dell EMC Networking OS
Configuration Guide.
CAUTION: You cannot enable stacking simultaneously with virtual link trunking (VLT). If you enable both at the same
time, unexpected behavior occurs.
The Dell EMC Networking OS commands for data center bridging features include 802.1Qbb priority-based flow control (PFC), 802.1Qaz
enhanced transmission selection (ETS), and the data center bridging exchange (DCBX) protocol.
Topics:
• mixed-mode-stacking
• redundancy disable-auto-reboot
• redundancy force-failover stack-unit
• redundancy protocol
• reset stack-unit
• show redundancy
• show system stack-ports
• stack-unit priority
• stack-unit provision
• stack-unit stack-group
• upgrade system stack-unit
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
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.
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