[DeviceC] display ntp-service status
Clock status: synchronized
Clock stratum: 4
Reference clock ID: 3.0.1.32
Nominal frequency: 100.0000 Hz
Actual frequency: 100.0000 Hz
Clock precision: 2^18
Clock offset: -21.1982 ms
Root delay: 15.00 ms
Root dispersion: 775.15 ms
Peer dispersion: 34.29 ms
Reference time: 15:22:47.083 UTC Sep 19 2005 (C6D95647.153F7CED)
The output shows that Device C has been synchronized to Device B and the clock stratum level of Device
C is 4.
# View the NTP session information of Device C, which shows that an association has been set up
between Device B and Device C.
[DeviceC] display ntp-service sessions
source reference stra reach poll now offset delay disper
********************************************************************************
[12345] 3.0.1.32 3.0.1.31 3 3 64 16 -6.4 4.8 1.0
note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured
Total associations : 1
Configuring NTP broadcast mode
Network requirements
As shown in Figure 25, Switch C functions as the NTP server for multiple devices on a network segment
and synchronizes the time among multiple devices as follows:
• Switch C’s local clock is to be used as a reference source, with the stratum level of 2.
• Switch C works in broadcast server mode and sends out broadcast messages from VLAN-interface
2.
• Switch A and Switch B work in broadcast client mode, and each listen to broadcast messages
through their VLAN-interface 2.
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