1-16To do… Use the command… RemarksConfigure an NTPauthentication keyntp-serviceauthentication-keyid keyidauthentication-mode md5valueRequiredNo NTP authentication key bydefaultConfigure the key as a trustedkeyntp-service reliableauthentication-keyid keyidRequiredNo authentication key isconfigured to be trusted bydefault.Enter interface view interface interface-typeinterface-number —Broadcast server mode:ntp-service broadcast-serverauthentication-keyid keyidAssociate the specified keywith an NTP server Multicast server mode:ntp-service multicast-serverauthentication-keyid keyidRequiredYou can associate anon-existing key with an NTPserver. To enable NTPauthentication, you mustconfigure the key and specify itas a trusted key afterassociating the key with theNTP server.The procedure of configuring NTP authentication on a server is the same as that on a client, and thesame authentication key must be configured on both the server and client sides.Displaying and Maintaining NTPTo do… Use the command… RemarksView the information of NTPservice status display ntp-service status Available in any viewView the information of NTPsessionsdisplay ntp-service sessions[ verbose ] Available in any viewView the brief information of theNTP servers from the localdevice back to the primaryreference sourcedisplay ntp-service trace Available in any viewNTP Configuration ExamplesConfiguring NTP Client/Server ModeNetwork requirementsz The local clock of Device A is to be used as a reference source, with the stratum level of 2.z Device B works in the client/server mode and Device A is to be used as the NTP server of DeviceB.
