304 CHAPTER 18: NTP C ONFIGURATIONFigure 86 Network diagram for NTP peer mode configurationConfiguration procedure1 Configure the Switch 4500.# Set Switch2 to the NTP server. system-view[SW4500] ntp-service unicast-server 3.0.1.312 Configure Switch3 (after the SW4500 Ethernet switch is synchronized to Switch2).# Enter system view. system-view[Switch3]# Set the SW4500 Ethernet switch to the peer of Switch3.[Switch3] ntp-service unicast-peer 3.0.1.33The SW4500 Ethernet switch and Switch3 are a pair of peers. Switch3 operates inactive peer mode, while the SW4500 Ethernet switch operates in passive peermode. Because the stratum level of the local clock of Switch3 is 1, and that of theSW4500 Ethernet switch is 3, the SW4500 Ethernet switch is synchronized toSwitch3.View the status of the SW4500 Ethernet switch after synchronization.[Sw4500] display ntp-service statusClock status: synchronizedClock stratum: 2Reference clock ID: 3.0.1.32Nominal frequency: 250.0000 HzActual frequency: 249.9992 HzClock precision: 2^19Clock offset: 0.66 msRoot delay: 27.47 msRoot dispersion: 208.39 msPeer dispersion: 9.63 msReference time: 17:03:32.022 UTC Thu Sep 6 2001 (BF422AE4.05AEA86C)The output information indicates that the SW4500 Ethernet switch is synchronizedto Switch3 and the stratum level of its local clock is 2, one level lower than thatSwitch3.3.0.1.31/243.0.1.32/24 3.0.1.33/24SW45003.0.1.31/243.0.1.32/24 3.0.1.33/243.0.1.31/243.0.1.32/24 3.0.1.33/24Switch23.0.1.31/243.0.1.32/24 3.0.1.33/24Switch3
