Users Guide

High Availability (HA)

High availability (HA) in the Dell EMC Networking OS is the conguration synchronization to minimize recovery time in the event of a route

processor module (RPM) failure.

In general, a protocol is dened as “hitless” in the context of an RPM failure/failover and not failures of a line card, SFM, or power module.

A protocol is dened as hitless if an RPM failover has no impact on the protocol.

You must specically 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 primary

• 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-specic. For command information about other platforms, see the relevant Dell EMC

Networking OS Command Line Reference Guide.

Version Description

9.8(0.0P5) Introduced on the S4048-ON.

9.8(0.0P2) Introduced on the S3048-ON.

734 High Availability (HA)