# System-wide services and functions

# URL

frinx-openconfig-system:system

# OPENCONFIG YANG

YANG models

{
    "frinx-openconfig-system:system": {
        "ntp": {
            "servers": {
                "server" [
                    {
                        "address": "",
                        "config": {
                            "address": "1",
                            "frinx-cisco-ntp-extension:vrf": ""
                        }
                    }
                ]
            }
            "frinx-cisco-ntp-extension:source-interface": {
                "config": {
                    "name": ""
                }
            }
            "frinx-cisco-ntp-extension:access-group": {
                "config": {
                    "serve-only": "",
                    "query-only": "",
                    "serve": "",
                    "peer": ""
                }
            }
        }

    }
}

# OS Configuration Commands

# IOS XE ASR920

# CLI

ntp server vrf  
ntp source 
ntp access-group peer 
ntp access-group serve 
ntp access-group serve-only 
ntp access-group query-only 
# Unit

Link to github : [ios-xe-unit]