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Displaying and maintaining ntp – H3C Technologies H3C S7500E Series Switches User Manual

Page 83

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3-19

To do…

Use the command…

Remarks

Configure an NTP

authentication key

ntp-service

authentication-keyid keyid

authentication-mode md5

value

Required

No NTP authentication key by

default

Configure the key as a trusted

key

ntp-service reliable

authentication-keyid keyid

Required

No authentication key is

configured to be trusted by

default.

Enter interface view

interface interface-type

interface-number

Broadcast server mode:

ntp-service broadcast-server

authentication-keyid keyid

Associate the specified key with

an NTP server

Multicast server mode:

ntp-service multicast-server

authentication-keyid keyid

Required

You can associate a

non-existing key with an NTP

server. To enable NTP

authentication, you must

configure the key and specify it

as a trusted key after

associating the key with the

NTP server.

The procedure of configuring NTP authentication on a server is the same as that on a client,

and the same authentication key must be configured on both the server and client sides.

Displaying and Maintaining NTP

To do…

Use the command…

Remarks

View the information of NTP

service status

display ntp-service status

Available in any view

View the information of NTP

sessions

display ntp-service sessions

[ verbose ]

Available in any view

View the brief information of the

NTP servers from the local

device back to the primary

reference source

display ntp-service trace

Available in any view