H3C Technologies H3C MSR 5600 - Manual (Page 108)

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# Specify Device A as the NTP server of Device B, and associate the server with key 42.
[DeviceB] ntp-service unicast-server 1.0.1.11 authentication-keyid 42
Before Device B can synchronize its clock to that of Device A, enable NTP authentication for
Device A.
4. Configure NTP authentication on Device A:
# Enable NTP authentication.
[DeviceA] ntp-service authentication enable
# Set an authentication key, and input the key in plain text.
[DeviceA] ntp-service authentication-keyid 42 authentication-mode md5 simple
aNiceKey
# Specify the key as a trusted key.
[DeviceA] ntp-service reliable authentication-keyid 42
5. Verify the configuration:
# Display the NTP status of Device B after clock synchronization.
[DeviceB] display ntp-service status
Clock status: synchronized
Clock stratum: 3
System peer: 1.0.1.11
Local mode: client
Reference clock ID: 1.0.1.11
Leap indicator: 00
Clock jitter: 0.005096 s
Stability: 0.000 pps
Clock precision: 2^-10
Root delay: 0.00655 ms
Root dispersion: 1.15869 ms
Reference time: d0c62687.ab1bba7d Wed, Dec 29 2010 21:28:39.668
The output shows that Device B has been synchronized to Device A, the clock stratum level of
Device B is 3, and the clock stratum level of Device A is 2.
# Display IPv4 NTP association information for Device B.
[DeviceB] display ntp-service sessions
source reference stra reach poll now offset delay disper
********************************************************************************
[1245]1.0.1.11 127.127.1.0 2 1 64 519 -0.0 0.0065 0.0
Notes: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured.
Total sessions : 1
The output shows that an association has been set up between Device B and Device A.