Users Guide

High Availability (HA)

High availability (HA) in the Dell 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:

• patch flash://RUNTIME_PATCH_DIR

• process restartable

• redundancy auto-failover-limit

• redundancy disable-auto-reboot

• redundancy force-failover

• redundancy primary

• redundancy protocol

• redundancy reset-counter

• redundancy sfm standby

• redundancy synchronize

• show patch

• show processes restartable

• show redundancy

patch flash://RUNTIME_PATCH_DIR

Insert an In-Service Modular Hot-Fix patch.

Syntax

patch flash://RUNTIME_PATCH_DIR/patch-filename

To remove the patch, use the no patch flash://RUNTIME_PATCH_DIR/patch-filename command.

Defaults None

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.

582 High Availability (HA)