1-19In the step above, Device B and Device C are configured as symmetric peers, with Device C in thesymmetric-active mode and Device B in the symmetric-passive mode. Because the stratus level ofDevice C is 1 while that of Device B is 3, Device B is synchronized to Device C.# View the NTP status of Device B after clock synchronization.[DeviceB] display ntp-service statusClock status: synchronizedClock stratum: 2Reference clock ID: 3.0.1.33Nominal frequency: 100.0000 HzActual frequency: 100.0000 HzClock precision: 2^18Clock offset: -21.1982 msRoot delay: 15.00 msRoot dispersion: 775.15 msPeer dispersion: 34.29 msReference time: 15:22:47.083 UTC Sep 19 2005 (C6D95647.153F7CED)As shown above, Device B has been synchronized to Device C, and the clock stratum level of Device Bis 2, while that of Device C is 1.# View the NTP session information of Device B, which shows that an association has been set upbetween Device B and Device C.[DeviceB] display ntp-service sessionssource reference stra reach poll now offset delay disper**************************************************************************[245] 3.0.1.31 127.127.1.0 2 15 64 24 10535.0 19.6 14.5[1234] 3.0.1.33 LOCL 1 14 64 27 -77.0 16.0 14.8note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configuredTotal associations : 2Configuring NTP Broadcast ModeNetwork requirementsz Switch C’s local clock is to be used as a reference source, with the stratum level of 2.z Switch C works in the broadcast server mode and sends out broadcast messages fromVLAN-interface 2.z Switch A and Switch D work in the broadcast client mode. Switch A listens to broadcast messagesthrough its VLAN-interface 3 and Switch D from its VLAN-interface 2.
