Displaying And Maintaining Ntp; Ntp Configuration Examples - 3Com S7906E Configuration Manual

To do...
Configure an NTP
authentication key
Configure the key as a trusted
key
Enter interface view
Associate the specified key
with an 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...
View the information of NTP
service status
View the information of NTP
sessions
View the brief information of the
NTP servers from the local
device back to the primary
reference source

NTP Configuration Examples

Configuring NTP Client/Server Mode
Network requirements
The local clock of Device A is to be used as a reference source, with the stratum level of 2.
Device B works in the client/server mode and Device A is to be used as the NTP server of Device
B.
Use the command...
ntp-service
authentication-keyid keyid
authentication-mode md5
value
ntp-service reliable
authentication-keyid keyid
interface interface-type
interface-number
Broadcast server mode:
ntp-service broadcast-server
authentication-keyid keyid
Multicast server mode:
ntp-service multicast-server
authentication-keyid keyid
Use the command...
display ntp-service status
display ntp-service sessions
[ verbose ]
display ntp-service trace
1-16
Remarks
Required
No NTP authentication key by
default
Required
No authentication key is
configured to be trusted by
default.
—
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.
Remarks
Available in any view
Available in any view
Available in any view