gNMI Protocol Feature Information for the gNMI Protocol Feature Name Release Feature Information gNOI Certificate Management Cisco IOS XE Amsterdam 17.3.1 The gNOI Certificate Management Service provides RPCs to install, rotate, get certificate, revoke certificate, and generate certificate signing request. This feature was implemented on the following platforms: • Cisco Catalyst 9200 Series Switches • Cisco Catalyst 9300 Series Switches • Cisco Catalyst 9400 Series Switches • Cisco Catalyst 9500 Series Switches • Cisco Catalyst 9600 Series Switches gNMI Protocol 24