What are Rolling Stack Upgrades (RSU) and In-Service Software Upgrades (ISSU) and how should you use them? In this blog post, let’s take a look at the basics of network software high availability.
Tags: catalyst, Demystify the Catalyst, eFSU, HA, High Availability, In-Service Software Upgrade, ios basics, ISSU, Rolling Stack Upgrade, RSU, Switching 101, upgrading fixed switches, zero down time
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Importance of High Availability: If you are reading this blog, you likely own 2-5 Wi-Fi-capable devices: laptops, mobile phones, or tablets. From employees to students, from doctors to guests, the common theme is that everyone now uses wireless as a preferred mode of access.
Tags: 7.3, access point, AP, business continuity, byod, CAPWAP, Cisco Unified Wireless Network, controller, CUWN, failover, HA, High Availability, mobility, SSO, Stateful Switch Over, wireless, WLAN controller
