Upgrade Hitless Software on Catalyst 9800 Series Wireless LAN Controllers

[Cisco Document Team]

The Cisco Document Team has posted an article.

This document describes how to perform an N+1 hitless software upgrade on Catalyst 9800 series Wireless LAN controllers.

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[Rich R]

First time I've heard of "hitless software"!

I suspect this was intended to be "Hitless Software Upgrade" - might be worth getting somebody to proof-read these articles before publishing?

The article intro confirms my suspicion:

Introduction

This document describes how to perform an N+1 hitless software upgrade on Catalyst 9800 series Wireless LAN controllers.