Operation Manual – NTPH3C S3100 Series Ethernet Switches Chapter 1 NTP Configuration1-22View the NTP status of Device D after the clock synchronization.[DeviceD] display ntp-service statusClock status: synchronizedClock stratum: 3Reference clock ID: 3.0.1.31Nominal frequency: 100.0000 HzActual frequency: 100.0000 HzClock precision: 2^18Clock offset: 198.7425 msRoot delay: 27.47 msRoot dispersion: 208.39 msPeer dispersion: 9.63 msReference time: 17:03:32.022 UTC Apr 2 2007 (BF422AE4.05AEA86C)The output information indicates that Device D is synchronized to Device C, with theclock stratum level of 3, one level lower than that of Device C.# View the information about the NTP sessions of Device D and you can see that aconnection is established between Device D and Device C.[DeviceD] display ntp-service sessionssource reference stra reach poll now offset delay disper**************************************************************************[1234]3.0.1.31 127.127.1.0 2 1 64 377 26.1 199.53 9.7note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configuredTotal associations : 11.8.4 Configuring NTP Multicast ModeI. Network requirementsz The local clock of Device C is set as the NTP master clock, with a clock stratumlevel of 2. Configure Device C to work in the NTP multicast server mode andadvertise multicast NTP messages through Vlan-interface2.z Device A and Device D are two S3100 Ethernet switches. Configure Device A andDevice D to work in the NTP multicast client mode and listen to multicastmessages through their own Vlan-interface2.
