2020-03-23 2021-02-05 Specification Required Christian Hopps, Lou Berger, Dean Bogdanovic ietf: IETF tags allocated in the IANA "IETF YANG Module Tags” registry. IETF vendor: Non-registered tags allocated by the module implementer. IETF user: Non-registered tags allocated by and for the user. IETF IETF Review ietf:network-element-class Network element as defined in . ietf:network-service-class Network service as defined in . ietf:sdo-defined-class Module is defined by a standards organization. ietf:vendor-defined-class Module is defined by a vendor. ietf:user-defined-class Module is defined by the user. ietf:hardware Relates to hardware (e.g., inventory). ietf:software Relates to software (e.g., installed OS). ietf:protocol Represents a protocol (often combined with another tag to refine). ietf:qos Relates to quality of service. ietf:network-service-app Relates to a network service application (e.g., an NTP server, DNS server, DHCP server, etc). ietf:system-management Relates to system management (e.g., a system management protocol such as syslog, TACAC+, SNMP, netconf, etc). ietf:oam Relates to Operations, Administration, and Maintenance (e.g., BFD). ietf:routing Relates to routing. ietf:security Relates to security. ietf:signaling Relates to control-plane signaling. ietf:link-management Relates to link management.