NSM 2.3.5 compatibility with SonicOS 7.1.1

The introduction of the SonicOS 7.1.1 operating system (OS) further catapults Gen 7 firewall features and functionality to the next level. In addition to featuring advanced security, simplified policy management, and critical networking and management capabilities for distributed enterprises with next-gen SD-Branches and small- to medium-sized businesses, SonicOS 7.1.1 adds new or enhanced features around Wi-Fi 6 support, DNS security, reputation based content filtering, and Network Access Control (NAC) integration.

At this time SonicOS 7.1.1 is not supported in NSM 2.3.5 however, it will be supported in NSM 2.4. The tentative release date for NSM 2.4 is end of January 2024 (Release of On-Prem 2.4.0 to come later in 2024). 

If a firewall is upgraded to 7.1.1 it may break the existing connection between NSM. To safely perform a firewall firmware roll back please see the following article: How do I safely perform a firewall firmware downgrade?