Operation Manual – NTPH3C S5600 Series Ethernet Switches Chapter 1 NTP Configuration1-19Reference clock ID: 1.0.1.11Nominal frequency: 100.0000 HzActual frequency: 100.0000 HzClock precision: 2^18Clock offset: 0.66 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 above output information indicates that Device B is synchronized to Device A, andthe stratum level of its clock is 3, one level lower than that of Device A.# View the information about NTP sessions of Device B. (You can see that Device Bestablishes a connection with Device A.)[DeviceB] display ntp-service sessionssource reference stra reach poll now offset delay disper**************************************************************************[12345]1.0.1.11 127.127.1.0 2 1 64 1 350.1 15.1 0.0note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configuredTotal associations : 11.8.2 Configuring NTP Symmetric Peer ModeI. Network requirementsz The local clock of Device A is set as the NTP master clock, with the clock stratumlevel of 2.z Device C (an S5600 Ethernet switch) uses Device A as the NTP server, andDevice A works in server mode automatically.z The local clock of Device B is set as the NTP master clock, with the clock stratumlevel of 1. Set Device C as the peer of Device B.
