Administrator Guide

High Availability (HA)
High availability (HA) in the Dell EMC Networking OS is the configuration synchronization to minimize recovery time in the event of a
route processor module (RPM) failure.
In general, a protocol is defined as “hitless” in the context of an RPM failure/failover and not failures of a line card, SFM, or power module.
A protocol is defined as hitless if an RPM failover has no impact on the protocol.
You must specifically enable some protocols for HA. Some protocols are only hitless if related protocols are also enabled as hitless (for
example, using the redundancy protocol command).
Topics:
• redundancy disable-auto-reboot
• redundancy force-failover
• redundancy protocol
• show redundancy
redundancy disable-auto-reboot
Prevent the system from auto-rebooting the failed module.
Syntax
redundancy disable-auto-reboot stack-unit [stack—unit ID| members} [rpm| card
number | all]
To return to the default, use the no redundancy disable-auto-reboot stack-unit rpm command.
Parameters
rpm Enter the keyword rpm to disable auto-reboot of the failed RPM.
stack-unit Enter the keyword stack-unit then the stack-unit ID number.
Default Disabled — the failed module is automatically rebooted.
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
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.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.3.1.0 Added the all option.
8.1.1.0 Introduced on the E-Series.
7.6.1.0 Introduced on the E-Series
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