HP 6125XLG R2306-HP 6125XLG Blade Switch Network Management and Monitoring Con - Page 50
Configuration example for NTP broadcast mode with authentication, Network requirements
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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 that 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. Configuration example for NTP broadcast mode with authentication Network requirements As shown in Figure 16, Switch C functions as the NTP server for multiple devices on different network segments and synchronizes the time among multiple devices. Switch A and Switch B authenticate the reference source. • Configure Switch C's local clock as a reference source, with the stratum level 3. • Configure Switch C to operate in broadcast server mode and send out broadcast messages from VLAN-interface 2. • Switch A and Switch B operate in broadcast client mode and receive broadcast messages through VLAN-interface 2. • Enable NTP authentication on Switch A, Switch B, and Switch C. 44