Operation Manual – NTPH3C S7500 Series Ethernet Switches Chapter 1 NTP Configuration1-14The above output information indicates that S7500-2 is synchronized to S7500-1, andthe stratum of its clock is 3, one stratum higher than S7500-1.# View the information about the NTP sessions of S7500-2. You can see that S7500-2establishes a connection with S7500-1.[S7500-2]dis ntp-service sessionssource reference stra reach poll now offset delay disper**************************************************************************[12345]1.0.1.11 127.127.1.1 2 1 64 1 350.1 15.1 0.0note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured1.7.2 NTP Peer Mode ConfigurationI. Network requirementsH3C2 sets the local clock to be the NTP master clock, with the clock stratum being 2.Configure an S7500 series switch to operate as a client, with H3C2 as the time server.H3C2 will then operate in the server mode automatically. Meanwhile, H3C3 sets theS7500 series switch to be its peer.Note:This example assumes that:z H3C2 is a switch that allows its local clock to be the master clock.z H3C3 is a switch that allows its local clock to be the master clock and the stratum ofits clock is 1.II. Network diagramH3C 2H3C 33.0 .1.31/23.0.1.32/24S750043 .0.1.33/24Figure 1-7 Network diagram for NTP peer mode configuration