Users Guide
redundancy force-failover
Force the secondary stack unit to become the primary stack unit. You can also use this command to upgrade the software on one
stack unit from the other when the other has been loaded with the upgraded software.
Syntax
redundancy force-failover stack-unit
Parameters
stack-unit Enter the keyword stack-unit then the stack-unit ID number.
Default Not congured.
Command Modes EXEC Privilege
Command History
This guide is platform-specic. For command information about other platforms, refer to 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
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.2(0.0) Introduced on the M I/O Aggregator. This command is supported in Programmable-
Mux (PMUX) mode only.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.1.1.0 Introduced on the E-Series ExaScale.
7.5.1.0 Introduced on the C-Series.
7.6.1.0 Introduced on the E-Series.
Usage Information
To provide a hitless or warm upgrade, use this command. A hitless upgrade means that a software upgrade
does not require a reboot of the line cards. A warm upgrade means that a software upgrade requires a reset
of the line cards. A warm upgrade is possible for major releases and lower, while a hitless upgrade can only
support patch releases.
redundancy primary
Set an RPM as the primary RPM.
Syntax
redundancy primary [rpm0 | rpm1]
To delete a conguration, use the no redundancy primary command.
Parameters
rpm0 Enter the keyword rpm0 to set the RPM in slot R0 as the primary RPM.
High Availability (HA)
591