Dell Force10 S4820T S4820T Configuration Guide - Page 968

www.dell.com | support.dell.com Enable NTP NTP is disabled by default. To enable it, specify an NTP server to which the Dell Force10 system will synchronize. Enter the command multiple times to specify multiple servers. You may specify an unlimited number of servers at the expense of CPU resources. Task Specify the NTP server to which the Dell Force10 system will synchronize. Command ntp server ip-address Command Mode CONFIGURATION Display the system clock state with respect to NTP using the command show ntp status from EXEC Privilege mode, as shown in Figure 49-2. Figure 49-2. Displaying the System Clock State with respect to NTP R6_E300(conf)#do show ntp status Clock is synchronized, stratum 2, reference is 192.168.1.1 frequency is -369.623 ppm, stability is 53.319 ppm, precision is 4294967279 reference time is CD63BCC2.0CBBD000 (16:54:26.049 UTC Thu Mar 12 2009) clock offset is 997.529984 msec, root delay is 0.00098 sec root dispersion is 10.04271 sec, peer dispersion is 10032.715 msec peer mode is client Display the calculated NTP synchronization variables received from the server that the system will use to synchronize its clock using the command show ntp associations from EXEC Privilege mode, as shown in Figure 49-3. Figure 49-3. Displaying the Calculated NTP Synchronization Variables R6_E300(conf)#do show ntp associations remote ref clock st when poll reach delay offset disp #192.168.1.1 .LOCL. 1 16 16 76 0.98 -2.470 879.23 * master (synced), # master (unsynced), + selected, - candidate Set the Hardware Clock with the Time Derived from NTP Task Periodically update the system hardware clock with the time value derived from NTP. Command ntp update-calendar Command Mode CONFIGURATION 968 | System Time and Date